Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

alanjgreen

10 Aug - Big dob enjoys a nebula marathon and sees an Angel (Night Vision)

Recommended Posts

Date: Friday 10th August 2230-0245
Scope: 20” f3.6 Lukehurst Dob with Paracorr (fl = 2089mm & f4.1). Night Vision: PVS-14 with Photonis 4g INTENS.
Eyepieces: 55mm (f2 x38), 27mm (f4 x77)
Filters: Astronomik 6nm Ha CCD
Moon: 0%

 

Before we get started

This is a long report. I will mark the most interesting stuff with underline should you wish to scan it and just digest the meaty parts…

 

It’s clear and dark!

I head outside just after 10pm and get the big scope setup & check collimation (all ok).
I have a plan to continue to view nebula using Sky Safari 5 (wifi connected to my Nexus) and have a marked up copy of “Astrophotography Sky Atlas” by Bracken on the desk ready…

 

Start with some brighter stuff, its still early…

With the roof pushed back and two-star alignment completed, I head for Gamma Cygni (IC1318a, b & c) There seems to be a mismatch between Bracken and Sky Safari where Sky Safari has the IC1318 labelled a, b, c top to bottom but Bracken labels the top nebula as IC1318b?

I added the Astronomik 6nmHa CCD filter to the Paracorr2 and inserted the 55mm Plossl then attached the PVS-14 NVD to the Plossl.

The views were wonderful! (even without full darkness), the nebula was showing as bellowing white clouds with real texture, occasional black patches and lanes could be seen within the lush whiteness. I took my time and nudged around finding myself first of all bumping into the huge bright Crescent nebula at one end and the fainter but intriguing Pelican at the other end.

IC1318a – I specifically targeted the “a” top section and was rewarded with a lovely bright “dagger” shaped nebula. There were black patches seen within the varying brightness shape and I had to nudge around to see the whole thing.

NGC6914 – I moved across to the nebula NGC6914 closeby and saw lovely lanes of nebula in all directions. There were some very bright areas within this nebula. A real treasure! :)

Propeller – Next up, the Propeller which was easily seen as an “S”, with a bit of time at the eyepiece the other cross sections came into view. Maybe it was still a little early to see it at its best but I forgot to come back later.

Veil – Onto the Veil and it was a sight to behold, equal to my best ever viewing of the other night. The western section was showing the split at the top into three parts (so I knew it was going to be good). I traced my way around the now familiar parts of this huge complex. For the first time I noticed that the lower western section has a “broken claw” shape within it (just below the bright star). The other highlight was seeing two intertwining strands of nebula along “the thin thread” section, like someone was twisting two wires into a twisted-pair. I noted wonderful bright details and outlines in the eastern veil and enjoyed the holes and knots within Pickering’s triangle. :)

Sh2-128 – Its getting visible darker now so onto some Sharpless. Sh2-128 was seen as a very small patch but easily seen.

Sh2-127 – slightly larger “double patch” but fainter than sh2-128

IC1396 Elephant trunk – I have visited this a lot recently, but tonight it was later and darker than previously this week. I was rewarded with superb white nebula and easily spotted black patches of varying shapes and size. The centre elephant truck was lovely and sharp, the outer trunk has less defined edges and I worked to see a right angle notch in the corner of the nebula for the first time. :)

NGC6946 Fireworks glx – After my success of getting the arms on the previous night, I had to come back for another look. This time I found the arms harder to see. I got them with averted vision but I don’t remember it being as hard the night before? Although I did note a faint showing of the third small arm underneath as what seemed like two small globular like patches pointed the way.

Wizard – Up next, the wizard. I picked out the “horse” and “camel’s back” and the brighter areas noted on previous visits.

Bubble The bubble was really good. It was surrounded by a larger, fainter nebula structure not seen the previous night. It really is quite a large area. The bubble was round and bright with the central brighter section really shining brightly. Really enjoyable. :)

Sh2-159 – uneventful blob of nebula.

Sh2-158Nice. Double circle of nebula. Two stars peeping through and very bright section to the left hand side. Also confirmed that Sky Safari has this area as blank – it labels the area around “sh2-159” as “sh2-158”!

M52 cluster – bumped into this lovely tight cluster as I roamed around this area of sky.

Sh2-170 – Large textured nebula patch. Two stars in the central blackness.

NGC7822/sh2-171After resolving some confusion as to what was sh2-171 (it’s the same as NGC7822), I found a thick lane of nebula with a bend in it. Bracken describes it as “Cosmic Question Mark). Up close in the dob then the question mark was not really how I would describe it (but I did some x1 NVD viewing later and IT IS more like a question mark at very low magnification). Nice bright nebula. :)

CED214 A real treat but seemed much smaller than on my last visit. Lovely 3D texture and varying white/grey/black colors. Looked like a “fist and knuckle duster” to me.

IC63 – Right angled corner of bright nebula. Small. (Bright star nearby causing reflections so would ideally need more magnification to get it out of the fov).

IC59 – Right next door in same fov. Straight thick patch of nebula. (Same star reflection problems as above).

Sh2-173 – Decent sized nebula patch with a big hole in the centre. On images this morning, it looks like a “mask”. I did not note that so I now I will have to return for another look…! :)

Sh2-175 – tiny nebula patch around a star.

Pacman This was the highlight of the night for me. First time that I have managed to get the whole of the big mirror onto the target (shed walls reducing aperture on previous attempts this year). Wowsers! It looks absolutely nothing like the view through traditional eyepieces with the 20”. I saw an “angel” not a “pac-man”. A white, textured angel shape, there was a black cactus under the left arm. Cactus splits off with a small side branch. Two small black holes seen in the whiteness. I held the sky safari image to the side of the eyepiece and did a side-by-side comparison. Lovely. :) :)

Sh2-132 – bright arrowhead shape. Two black lanes cut into it. There were two small brighter sections, one left side and horizontal and one right side and vertical direction.

Sh2-135 – small space triangle.

Sh2-157One of my favourites, a very large “heart” or “space squid” with an extra bright small circular patch within it. It has lovely outer edge detail all around. There was an extra small line piece of nebula out to one side. :)

Sh2-158 – small patch just to the side of sh2-157

Sh2-163 – small faint patch

Sh2-166 – small even fainter patch

Sh2-168Triangle of stars shaped like a “segment” overlayed with a semi-circle of larger nebula on top. Very bright central area. Great. Images this morning do not reflect what I saw. The prominent “segment” does not come through on images. There is some black gas coming into one side, this must be part of the segment? :)

Cave – I bumped into the Cave by chance and it was looking great against this dark sky. Better view than on previous nights this week. The black cave section stood out well against the surrounding nebula. The leading edge like a tidal wave pushing through the sky.

 

Galaxy Comparison

I removed the Ha filter and headed for my first NVD viewings of Andromeda and accompanying companions. I began by switching to the Ethos10 and removing the NVD to get some views to compare against. M31 was great in the E10, with the two black lanes extending well out into space.

 

M31, 32, 110 – The central part of M31 was really sharp in the 55mm Plossl and NVD. The core was a lovely bright circle. The two black lanes were really sharp as they passed though the bright central dust. As the lanes moved out into space they became harder to trace than with the E10 previously. M32 and M110 were both clear and sharper with NV. M110 was larger with the E10.

NGC147 & NGC185 glx – Another side by side comparison yielded similar results to M110. I found them larger in the E10 (but I was using x200 magnification) yet they were just the same patches in the sky with the NVD (yet only at x38). Hard to say which was best. They certainly had more contrast and were easier to hold with the eye with NVD. But I was starting to get tired by now.

Stephans Quintet – Onto one of my favourite night sky objects. With the E10, I saw the central triangle of galaxies and centred the group. There was another galaxy close-by. I do not remember seeing both cores in the merging galaxy (which I have seen before with big dob). With the 55mm Plossl and the NVD the quintet are obvious (at x38 magnification), NGC7331 appears in the same fov. I nudged them central and one of the central triangle of galaxies is missing, there was a central two galaxies.  I could see 4 galaxies in the area, one was next to a star. I need to come back when I am more awake and repeat this exercise once again.

Interestingly, when I centred NGC7331 I could pick out the same 4 flea galaxies to the side at x38 magnification that I saw with the E10 at x200 (mind boggling).

 

Box kite in the Sky

M76 In the area I saw M76 and nudged over. I am glad I did! What a surprise. I was expecting a mini dumbbell and instead got a “box kite in a circle”. The box kite had a white box at either end with a larger central black oblong shape. The whole thing appeared to be within a circular structure. At x38 it was very small to the eye. The view did not resemble anything I have seen with traditional eyepieces. Another one to revisit with more magnification on another night. :)

 

Tiredness gets us all in the end!

By now I was really tired and decided to close up the shed and grab some x1 milky way views by attaching a 1.25” 12nm Astronomik Ha filter to the front of the NVD. It was 0230, so I had managed 4 hours and the list of targets had been huge. I have not mentioned many old friends that I happened upon during the night, just those that made it into my notes.

x1filter.jpg.20f3fe2546c6279127dba93ff8317c50.jpg

 

The wonders of x1 with NVD and Ha filter

I scanned the sky holding the NVD direct to my eye and looking up. I focused the NVD by turning the front objecting using the Seven Sisters as my target. Bang! There’s a big log of nebula next to the Pleiades (California), Boom! There a multi patched nebula coming up over my neighbour’s house, looks like a flying bird (IC410 & Flaming Star). Moving up a nice pair of nebula (Heart & Soul). Into Cassiopeia and several smaller blobs of Nebula (maybe Pacman). Keep moving, and there is the IC1396 Elephant trunk (some black detail within), onwards to very bright North American and Pelican next door. Into, Cygnus and very bright detailed blobs around Gamma Cygni.
The main drawback of x1 is the wear and tear on your neck!

 

Dawn is not breaking

It was 0245 when I made my way back inside and looking up the Milky Way was still clear and wide. The black streak between the two arms still looks really black and stands out lovely against the sky. Only a month ago the Sun was forcing me inside at 0200 and now it’s nowhere to be seen… Seems the astronomy window is opening once again and I am a happy man!

 

Clear Skies, Alan

Edited by alanjgreen
  • Like 8

Share this post


Link to post
Share on other sites

Sounds like a riot of a night Alan, a vast presentation of objects associated with NV viewing, the deep sky opening up at every turn, darker skies at this latitude are gradually returning.  

  • Like 1

Share this post


Link to post
Share on other sites

To add, I shall think of an angel next time I turn on NGC 281, but I expect it will still be Pacman.

Share this post


Link to post
Share on other sites

Brilliant, hope there’s something of challenge left in Bracken! 1x is always fun to see all the big stuff that is right there... you wait till Mr Orion comes around, then you’ll know what “big nebula” means!

have you started “nebula hopping” to find stuff yet, or are you just  Go..ing To?

PEter

  • Like 1

Share this post


Link to post
Share on other sites

... bit like the “big cactus” (dark gap) between the North America and Pelican. Amy other nebulae you want to rename?

PEter

Share this post


Link to post
Share on other sites
1 hour ago, PeterW said:

Brilliant, hope there’s something of challenge left in Bracken! 1x is always fun to see all the big stuff that is right there... you wait till Mr Orion comes around, then you’ll know what “big nebula” means!

have you started “nebula hopping” to find stuff yet, or are you just  Go..ing To?

PEter

Yep, started nebula hopping :)  (the big ones anyway). Like navigating around a city in the sky...

 

As for a "challenge", the Iris and various dark nebula have proved elusive...

Edited by alanjgreen

Share this post


Link to post
Share on other sites
57 minutes ago, PeterW said:

... bit like the “big cactus” (dark gap) between the North America and Pelican. Amy other nebulae you want to rename?

PEter

As they used to say on "catchphrase" - say what you see...

Share this post


Link to post
Share on other sites

For a challenge I suggest the witchhead... a reflection nebula that should be invisible to NV. Never had much luck with dark nebulae, though not had much time under good enough skies and so don’t have an eye for what I am looking for. However saw some nice milky way mottling around scutum a few nights ago with the 680nm, sweeping about to help “mentally average” things. Want to try that again.

Peter

Ps I have a friend who said what he saw for that dark Neb and it’s sadly not printable!

  • Like 1

Share this post


Link to post
Share on other sites

Huge report to compliment a huge telescope!  I’m amazed how low the focal ratio is on these monsters.  Excellent read and I’m envious of your skies. The Milky Way is hard to come by over here in NELM 5.5.  I’ve tried for some of those targets like Heart and Soul but have only had a sniff.  Clear skies

  • Like 1

Share this post


Link to post
Share on other sites
2 hours ago, Special K said:

Huge report to compliment a huge telescope!  I’m amazed how low the focal ratio is on these monsters.  Excellent read and I’m envious of your skies. The Milky Way is hard to come by over here in NELM 5.5.  I’ve tried for some of those targets like Heart and Soul but have only had a sniff.  Clear skies

With the focal ratio of f3.6, it means I can stand with my feet on the ground and still use the scope straight up at the zenith.

This was a prime requirement for my dob purchase as I refuse to stand on any steps in the dark! Better to spend an extra £500 than risk breaking your neck or worse, the scope!

With the Night Vision device attached to the 55mm Plossl and all the extra out focus that needs its already a bit of a "reach" to grab and nudge the scope to the next target.

Besides the lack of any need for steps, the best thing I ever did was get the encoders and Nexus wifi added to the scope. As you can see above, the targets just keep on coming when you can see where you are pointing :) 

David Lukehurst was happy to install all these bits and bobs onto the scope as part of the build process so for me, very little extra effort was involved except the cost.

To me, it's the greatest scope in the world. 

BUT if I had to assemble it every night (rather than just open the shed) then I would likely have broken something by now as well as needing someone else to help me assemble and disassemble it.

As far as my great skies, we moved here specifically for the dark skies. At the end of the day it's the only real option. If you get the chance to move out into the country then take it, you only live once :) and once your kids have moved on then why not?

Edited by alanjgreen
  • Like 1

Share this post


Link to post
Share on other sites

Superb report Alan some faint objects there too, must get down to some observing now I'm back home, had some good weather in London and some rain right at the end.

Alan

  • Like 1

Share this post


Link to post
Share on other sites

I agree about the 2person. I once had to help a chap who Big Dob got blown round and bent the encoders. He’d never lifted the rocker off the base ever. With some duct tape/multitool action we had him on the way in time to continue observing.

PEter

Share this post


Link to post
Share on other sites

Very interesting report Alan, keep them coming! ;)

-Niall

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By alanjgreen
      Scope: 20” f3.6 Lukehurst Dob with Paracorr (fl = 2089mm & f4.1).
      Night Vision: PVS-14 with Photonis 4g INTENS.
      Eyepieces: DeLite 18.2mm (f5.8 x115).
       
      I was out supernovae hunting last night with three SN targets planned
      1= NGC109/SN2019upw
      2= UGC11860/SN2019tua
      3= UGC11979/SN2019tgm
       
      I am happy to report that I observed 2 out of 3. Here are some notes to help others.
       
      NGC109 /  SN2019upw

      This one is fairly straightforward as there are few field stars in the area. Once you find the three brighter stars in a triangle then the galaxy is easily seen in the centre. There are 4 faint stars on one side of the galaxy and one on the other. The SN is separate from the core. As I was only using x115 magnification then the split was not straightforward and time was needed to wait and observe for the split to come and go!
       
      UGC11860/SN2019tua

      This galaxy was really well placed at the zenith at around 1830 last night. The galaxy was not seen but the SN is there. It takes time to find the right spot but there is a field star "3D cube" just above, once you find the cube then you can find the SN. (See stars marked A,B,C,D on my diagram, the Supernova is X).
       
      UGC11979/SN2019tgm

      This is the toughest, there are so many field stars that it is hard to find what to match to the internet images. Anyway, it turned out that I was looking in the wrong place but the stars I drew do match the images so I was just a small way off. 
      Look carefully at my sketch and there are two rows of field stars (the 3+2 and the 3, the middle star of the lower 3 is a double), if you can find these two rows of stars at the eyepiece then the SN is in-between these rows as shown by the blue box (added this morning). I was looking further up in a tight cluster of stars where the tiny galaxy appeared to be (my mistake!).
       
      Happy hunting!
      Alan
    • By alanjgreen
      Dates: 28th & 29th November 2019.
      Scopes: 20” f3.6 Lukehurst Dob & Borg 107FL f5.6 (focal length 600mm).
      Night Vision: PVS-14 with Photonis 4g INTENS.
      Eyepieces: Plossl 55mm (Dob f2 x38, Borg f2.6 x11). Filters: Chroma 5nm Ha filter.
       
      Introduction.
      Last time outside was the 8th November and I had a great night with the Borg 107FL and Night Vision identifying many new “areas of interest”.
      See my report and sketches here: 
       

      But then we have had three weeks of clouds!

      Anyway, last weekend we got three clear(ish) nights outside so I decided to use the Borg 107FL as a spotting scope to identify further areas to then check out with the Big Dob. It seems that it is easy to look straight through faint nebula and not see the bigger picture with the greater magnification proving a disadvantage with the dobsonian.

      This report will cover a mix of two sessions (Night one – Borg 107FL) and (Night Two – 20” dobsonian). I will detail my wide field observations and sketch and then follow up with the detailed greater magnification/aperture view of the exact same area accompanied by a photo from Sky Safari with locations marked.
       
      Area of interest 1 – Heart & Soul nebula region.
      Starting with my wide field observations, here is a sketch I made of this area of the sky.

      The big thing I found was a rectangular structure that is attached to the side of the Heart nebula. It had some brighter areas within it and a smaller parallel line inside it. There was an obvious “loop” coming from the “mole head” part of the Heart and beyond the loop I saw a small patch and a longer snake patch too. I have marked some of the smaller Sharpless (sh) that I saw on the sketch as well.
      After quite a long time examining the Heart, I slewed to the Soul (foetus) next door, where some nice intricate interior detail and brighter mouth and chin areas were observed together with a couple of small Sharpless just of the sides were also noted.

      Now, onto the Dob observations from the following night. Here is a Sky Safari view…
       
      GSC 4051-1604 – large faintish patch fills fov. Stars have cleared black areas inside. Double star in a black patch stands out.
      TYC 4054-1657-1 - marks the right angled corner of faint box extension to heart nebula.
      HD 15022 – Triangular shaped patch fills fov. Some small black areas inside.
      GSC 4046-0016 – a “line” section. Two brighter patches stand-out.
      TYC 4050-2042-1 – return section of “loop”. Exiting & returning to the “mole head”.
      TYC 4056-1055-1 – Long curving corner section of faint nebula lane coming from the Heart.
      TYC 4051-2885-1 – Junction of two curved loops (curved X shape), brighter central area with black patch & stars inside.
      TYC 4059-0328-1 – very faint large section of reflection neb. Plenty of black helps the nebula to stand out.
      GSC 4058-0834 – “house” shaped star cluster set in a large nebula patch.
      TYC 4052-1055-1 – small nebula patch (part of a long thick curvy lane that winds along here).
      SAO 012401 – very tiny, bright nebula patch.
      HD 20798 – small circular patch next to a star (the last in a line of stars). Black circular area too.
      TYC 4049-0064-1 – double lane of nebula. One side brighter with some brighter patches too.
       
      Area of interest 2 – Flaming Star region.
      It was time to revisit the Flaming star region. I familiarized myself with a look at my sketch from last time out then started to note and sketch further nebula details seen at the eyepiece. I could see a sketch what looked like loops of nebula coming from the main bright blobs (sketched as dashed lines). There was a clear right angled corner piece above IC417. I then hit the multi-patched area of sh2-233/235 which looked great. On the other side there was a sweeping curved section that ended in a double patch (maybe sh2-227). I could see a small bright blob below that (guessed as NGC1778 but may be something else sh2-228?). Finally, I noted a small patch hanging off the side of the Flaming star itself. Here is my sketch from 28th November.


      Now, onto my 20” dob observations from the following night…

      TYC 2393-1581-1 – oblong patch to LHS of tail of Flaming star.
      HD 243596 – patch between IC410 & Spider.
      HD 36834 – thick lane of nebula brighter section connects to HD35345.
      TYC2415-0413-1 – large patch connected to HD35345.
      HD 36212 – large nebula patch with many stars.
      SAO 058274 – large nebula patch under the pinwheel cluster.
      More work needed here...

       
       
      Area of interest 3 – Fox Fur & Rosette region.
      Next, the Fox Fur & Rosette, which is proving to be a great area to explore with a small wide field scope. The Fox Fur is rising rapidly up the list of “great nebulas of the night sky”! Once again, I started by checking my sketch from last time out and then worked to see and sketch further details… Here is what I ended with…



      It’s really hard to find a decent image of this area wide field. Everyone seems obsessed capturing the tiny Cone and misses out on the vast lush areas greatness! Search for “Fox Fur Nebula Rosette” and you can find some – it’s well worth it. 
      This time I noted some of the black detail inside the thick “comma” shape and also a smaller detached patch above.
      I cannot reach this region from my shed so there is no dob confirmation text.
       
      Area of interest 4 – IC434 & Horsehead region.
      Onto the expansive region that contains IC434 and the horsehead. Last time out I noted a long extension to the left hand side and down parallel to IC434. This time I was lucky enough to see even more. IC434 was a complete rectangle of nebula surrounding Sigma Orionis in its centre. With more time I began to notice a separate nebula lane running up the left side of this. It was fainter and ended with a curvy section around Alnilam at the top. The bottom end was right angled as shown below in my sketch…
       
      I cannot reach this region from my shed so there is no dob confirmation text.
       
       
      Finish with the search for some Comets.
      I was out again on the 30th November where I managed a couple of hours observing before fog descended. The highlight was that I bagged four comets as follows:
      Equipment: 20” dob, 27mm Panoptic (x77 magnification), PVS-14 Night Vision.

      C/260P McNaught – A small fuzzy blob next to a star. No core to speak of.
      C/114P Wiseman-Skiff – (found WEST of where Sky Safari says it is so beware!) It appeared brighter than C/260P. A small fuzzy patch with wide brighter core (but not a bright “dot” core).
      C/2018 N2 (ASSASN) – Easy. Bright dot core and halo surrounds. Next to 2 stars LHS.
      C/2017 T2 (PANSTARRS) – Very Easy. Bright dot core and dust halo. Small tail heads NW.
       
       
      Epilogue
      The above approach proved a success, identifying potential areas for detailed searching with the dob in advance really helped me to focus where I looked with the dob and helped me to linger longer at a location waiting for nebula to pop out at me.
      I will be relocating the dob to the back of the shed for the next new moon so Orion and the Rosette can be reached. Then I can firm up some more exact locations thanks to the push-to connection to Sky Safari that the dob has (via a Nexus wifi unit).
       
      Clear Skies,
      Alan
    • By alanjgreen
      Date: Friday 8th November 2019. 0300-0600am
      Scope: Borg 107FL f5.6 (focal length 600mm).
      Night Vision: PVS-14 with Photonis 4g INTENS.
      Eyepieces: Plossl 55mm (f2.6 x11).
      Filters: Chroma 5nm Ha filter.
      Moon: 0%
       
      Introduction.
      It’s now been over a week since the “never ending” clear skies went away. With the full moon approaching I saw an opportunity to maybe get out for a few early morning hours after the moon had set.
      The skies were clearing when I went to bed and the Devils Orb was already giving the appearance of daylight outside.
      I had a short restless sleep with the occasional peek to see if the moon was still lighting the edges of my bedroom curtains. Once I was satisfied that it had gone and having taken a few minutes to “motivate myself”, I slipped out from the warm bed and headed downstairs to get dressed.
      It was pretty windy outside which meant the roll-off shed would not be used tonight so I prepared the Borg107 for a trip outside onto the patio. It took me 20 minutes to get ready before I relayed my kit outside.
      I quickly performed a 2-star alignment for the Skywatcher AZGTi mount and headed to M45 to test it out…  The Pleiades were all bright and sparkly in my fov set against a lovely black background (“looks good” I thought to myself).
      I had no real plan for the session, so I decided to look at the brightest areas of Orion plus some of the larger Sharpless from my “Best of Sharpless”.
      I added the Night Vision PVS-14 to the TeleVue 55mm Plossl and added the Chroma 5nm Ha narrowband filter to the front of my 2” diagonal.
       
      NGC2244/Rosette.
      Where else to start but my favourite nebula – The Rosette! It appeared bright and mid-sized (at x11 magnification). Thin bright lanes seemed to trace out the “petals of a flower”. Multi-toned fainter nebula filled in the gaps, then with the dark black central hole and cluster to complete the view. I lingered a while before slewing down and into three spread-out nebula patches (sh2-280, 282 & 284). They are all different which makes them more appealing. The first is a circular patch with two small dark circular shapes inside (sh2-280), then we have an oblong shaped patch (sh2-282), finally on the other side of a bright star we arrive at the circular patch sh2-284.

       
      NGC2264/Cone/Fox-Fur nebula.
      Now for the first “surprise bonus” of the night. I centred on NGC2264 and when I looked in the eyepiece I found the fov filled with faint multi-textured nebula. I located the MINUTE Cone nebula, it was very tiny but a clear black triangle nevertheless! I traced the parent Fox Fur into what looked like a “comma” shape. This comma shape was sitting above a right angled long thick lane. Below this I found a mid-sized curved lane and followed this down and left to arrive back at the Rosette.
      I decided to make a sketch of the large area just covered as the individual segments were so clear to see (and you do the daftest things when only half awake!)
       

      I found the Xmas tree in the tail (of the comma) slightly brighter. I noted a dark lane running through the comma tail section.
       
      IC405 Flaming star/IC410/sh2-230
      I have had recent success with the sh2-230 undefined area around IC410/405 with the big dob. So it was time to see what the 4” aperture of the Borg could tease out of this region. This is a beautiful detailed large section that really comes out well under low x11 magnification. IC405 and IC410 are immediately obvious. The magnificence (intricate detail) of the upper head section is not so striking at this low magnification but you then notice that the Flame is larger than expected and in fact has an extra patch that seems to extend the tail section further out. IC410 sits by the side and has the appearance of “a mask”, I see two black eyes cutting into the small bright shape. Above IC410 there are two tiny patches (Spider and Fly) then above them I see a large faint circular patch (unknown). To the left of this and above the Flame is a double curved lane which has several brighter sections visible within it (sh2-230) which I have seen before. But my eye is drawn further left and up where there appears to be a huge circular edge (unknown).

       
      NGC1499 California.
      While looking at Sky Safari, I decide to see NGC1499 (another nebula where the big dob has been working hard recently). Wow, this area is great at low magnification. The “traditional” section of the California is the brightest and easily seen in its entirety but it’s the large extension section to the right (that must be at least the same length again!). Then while examining the tail and crown sections at the left end, I begin to notice a huge structure that seems to sit behind the California nebula. I sketch out what I can see. This background section is vertical where the California appears horizontal. It is faint and has curves under the California where it seems to meet a large faint patch (that has 6 bright stars inside), I add these to the sketch…

       
      IC2177 Seagull nebula.
      Looking for big and bright nebula, I choose to see the Seagull next… The traditional “head and shoulders” fills the fov. I slew around and trace out a large additional structure leaving the “top shoulder” and travelling right and then down to finish at an extended “foot” patch just above the Duck nebula. I sketch out the Seagull and then hunt around for any patches (I know there are plenty to small Sharpless around here). I find two small patches at the end of an extended “leg” section (I thought that one of these was Thor’s Helmet but after slewing to that later then I think I am wrong so I need to revisit and sort out what they are?)

       
      Sh2-240 Spagetti.
      I pick a large nebula from the best of Sharpless, sh2-240 next. It appears as a large circular faint shape. There is a central vertical zig-zag section and I see several hortizontal-ish black lanes travelling through the patch (as I get my eye in). There is definitely lots to see here and its deserving of its place in the “best of Sharpless”.
       
      M42/M43/NGC1973, Orion and the Running Man.
      Okay, I’ve waited long enough! I slew to NGC1973. The only thing you see at the eyepiece initially is M42 of course! It’s so bright and wonderfully detailed. At this low magnification it reminds me of a “bird in flight” with bended wings. The “fish head” is the brightest section but I am fond of the blackness that spews from the fish head and seems to spread out and around M43 next door, it is black as black can be. M43 has an intricate shape inside its almost complete circular patch, but I speed by to seek out the Running man. Tonight the bright patch is clear as day and as I look on a black shape within the bright patch comes and goes, it’s not a “pair of legs” but it’s a black patch within nevertheless.
       
      Flame/IC434/Horsehead.
      I slew directly up from M42 and a bright patch comes into view, over to the right a bit and there is IC434 bright and thick. The horsehead is tiny but clearly visible and having a decent shape tonight. However, I am completely drawn to the long nebula bend section to the left which runs down from the Flame too. I do not remember noticing this section before but it’s been a year since Orion was here and I cannot remember everything that I see!

      I now manually slew up from the Flame to find a thick horizontal nebula lane running across the full fov. I follow it right and then down and back under until I find myself back at the Orion nebula (M42). I guess this is Barnards Loop. I had earlier searched for it to the left of Alnitak (as that’s where it is with the dob but this “star diagonal” used in refractors regularly sends me the wrong way when I try to retrace the big dob steps!
      Angel Fish – Huge and bright. Way too big to see the fish at x11 magnification. I do my best to tease out some features but it is just too huge!
       
      NGC2174/Monkey’s head.
      Instead, I move onto the Monkeys Head. It appears small and bright but as usual I see “Mickey Mouse” with the refractor and star diagonal turning things around. I slew around and pick out two patches above, one is sh2-247 the other is unknown. I slew below and find the wonderful tiny triple nebula sh2-254,255 & 257 (another Best of Sharpless member).

       
      NGC2395 Medusa – A small shimmering crescent moon shape is observed.
      M1 Crab – A small shimmering patch. With time at the eyepiece I see a bright circle around the outside and the occasional jumping line details within but cannot hold the interior in my view.
      NGC2359 Thor – A small faintish semi-circle.
      IC443/IC444, sh2-249 – The triplet of nebulas all fit into the fov and are a lovely sight that takes a good while to look around and take it all in. The Jelly fish (IC443) has lovely “tenticles” section that breaks backwards RHS. There is a small bright patch directly in front of IC443 (IC444) and then behind this the large oblong nebula structure sh2-249. I see the fine black lanes within sh2-249 next to Tejat Posterior (bright star).
       
      Sh2-265 – Picking another large Sharpless object, I headed for SAO 112667. I found a small bright patch (sh2-263) then above that a huge bright nebula that after slewing around, reminded me of a “walkie-talkie”. It had a pointed section at the upper LHS. And an interesting double lane at the lower sections.

       
      Sh2-260 – Next I picked sh2-260 (which I have only ever seen with the big dob). I slewed to SAO 112142 where I discovered a very large faint nebula shape. It was larger than the fov and seemed to appear as a “thin teardrop” shape. I cannot find any images of this so at the moment it is unknown to me.
       
      Epilogue.
      I noticed the sky brightening from around 0550hrs so I headed for a last look at the Rosette and Flaming Star regions before deciding to pack up at 0600hrs.
      I am glad that I made the effort to get up as I felt like I got “more than I imagined” from my session (which sent me back to bed happy, if a little cold – at least I had my hot water bottle to bring my feet back to life).
      I think that I have concluded that I need to get the widefield Borg 107FL out more frequently, when it’s cold then the dob in the shed is a much more appealing thought.
      -          I have added an unexpected 7 entries to the “Ag1-xx” nebula catalog for the unknown/extra patches that I will need to come back and confirm… (up to 97 entries now).
      I also now have some lingering memories to help me through the barren spell of the full moon (out here in the dark countryside, the full moon is a real killer!).
       
      Hope you enjoyed the read and my sketches!
      Alan
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.