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jetstream

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Everything posted by jetstream

  1. More info... http://www.astrosurf.com/zoll/images/G65_3__5_7.html
  2. Hint: Sh2-94 In the 10" I felt something was there and the 15" confirmed it, this is pretty hard. Susan Young is s great observer and the picture is from her report. Here is the OIII response which helps us look in the right place.... http://sandandstars.co.za/2017/07/26/cygnus-other-snr/
  3. Congrats Neil! SH2-91 is not an easy target, ghostly in appearance and a worthy target for any scope. Did you see anything else in the area? there is another, tougher section that is visible It will for sure, but... this is not surprising actually. If your like me then after concentrating on viewing very faint nebula my galaxy abilities are lacking. I noted this over and over and now when observing galaxies they will be the primary targets for the night- at the end of a session I might sky cruise nebula though. Stephans Quintet is easier in a 10" than SH2-91 for me- I can get 3 very faint overlapping cores with the 10" and an ortho for best views. Oh and I forgot- did you look for hints of a detached patch right off the tip of the Easter Veil, near the one you saw? Again congrats as these features are only seen in top notch images....
  4. Interestingly enough my 200mm f3.8 will show pink under the wings of M42 and with a dazzling mottled green core all in a small package @ 36-44x. The dust lanes in M31 are also very contrasted against the bright galaxy glow.
  5. I'm not sure where to put this thread so mods move it if need be, thanks. Mel Bartels observes very faint, very large objects effectively using some rather unique reflectors, unique in the sense of their f ratio and size. Entendue or light through put in telescopes is an interesting theory which might ruffle the feathers of those who think detectable contrast is only linked to object size (in the eyepiece) and eye illumination (exit pupil). I have a 200mm f3.8 and can say it does show some things better than other telescopes like the IFN near Vega. I hope some good discussion will result from posting this link,Gerry http://www.bbastrodesigns.com/HET.html
  6. Yes I might get one but I'm not sure of the effect on DSO... some say it should increase contrast, which could be true if the coma reducing effect increases contrast greater than any potential loss from all the extra glass etc. Could be a costly experiment... In these focusers, even with tight fitting lasers and sight tubes leaving the focuser thumbscrews loose show how much the laser dot can move if touched...I always center my laser on the secondary with the same thumbscrew tightened first- and then tighten the same thumbscrew first with the eyepiece. Glatters parallizer can take care of part of this, but where does it end lol! I'm going to start a thread on "entendue", you might find this interesting, if not controversial.
  7. Do you find that collimation moves during a session?
  8. Interesting formulas Piero and the coma free area is what it is regardless of how its calculated. I would be very interested to see if your collimation method would result in all the reflections being stacked in a dual pupil autocollimator.... from what I understand the most accurate collimation results when all tools are in agreement, including the DP autocollimator- for us amateurs anyway.
  9. I tested my Moonlight with a weight simulating the Binotron 27's and 2 Docter 12.5mm eyepieces. This allowed my to watch the Catseye cheshire and Glatters laser as I racked the focuser in and out. After about 1/2 travel miscollimation began, enough to damage views. What I did then is adjust the extension tube to allow 1.3x and 2.3x (Powerswitch) focus in the first third of focuser travel. I will then pull the bino out to focus for 3x with the focuser at half travel or less. I've heard new Feathertouch's might sag more than the Moonlight and would like confirmation (or not) actually. I use the 45mm OCS with the bino's. Edit: Oops forgot you had an aluminum OOUK tube- I tested my VX10 and it was the tube that flexed, lots. I have a different stock OOUK focuser than yours though. @faulksy had to reinforce his VX14 if I remember, to help with the issue. Mine flexes so much I don't binoview with it.
  10. Yes it is right at the top of the left side of the sketch above and close to the Eastern Veil. If M8 is not naked eye you might have extinction further up as well and with this there is very limited chances of seeing this faint patch. There is also another very faint detached patch right off the very tip of the Eastern Veil that is not shown, difficult as well. The 24" shows more nebulosity than the sketch but differently, more delicate perhaps and more detailed. Eagerly waiting reports!
  11. There is a little challenge in this sketch for you Way before this sketch, a couple of years ago I reported seeing very very faint nebulosity near the end of the Eastern Veil, @Stu helped me with confirmation - your 10" will show this area as extremely faint, almost as a ghostly line- right at the limits of your scope. I'm so happy Mel has it in this sketch! It will not show like this, but its there. Its the detached patch at the very top of the Eastern Veil in the sketch- give it a try!! Great obs of the Lagoon Neil, more and more will reveal itself top you. Can you see it naked eye?
  12. Awesome report Neil! Check out this sketch of Mel Bartels... a 25" f2.8- holy! Man he pulls out details and find myself chasing them- and most always see the features.
  13. That sounds fantastic, and if you could exist comfortably go for it! Why do the campgrounds shut down early? Is it cold there? Scotland sounds VG.
  14. Perfect! Maybe I should up the mag for these things? I must try some different things I think, maybe start with the zoom and fine tune with orthos or something.
  15. @Stu question- in the center of M31's core there is a tight point of light- is this a glob I wonder? straight smack in the middle. Any other members opinion welcome too
  16. Thanks Paul, last night went 6.4 NELM using 20 Umi so not the best really but nice. This is great info and is much appreciated- 2 dozen in there?! I never knew this- can't wait so see some of these suckers lol! I took a quick peak last night but between the poor trans ans emerging moon I called it quits then.
  17. Thanks Stu! The 15" gets G1-I guess its called and I truly hope I can get more. As far as the Bubble size, thanks for that info too. I just used the TFOV with the Lunt as a rough guide as it was a bit smaller than the field of it, so smaller than .8deg. Observing planetaries with this thing is is making me seek them out now! I never thought there would be so many with detail such as the Magic Carpet, Catseye and now the Bowtie, seems I like these now lol!
  18. Thanks Mark, the new scope sure does work well. With the 15" Stephans Quintet was a triplet with a possible 4th. What this 24" does is open the object right up- great separation and even separation between the cores of the harder ones, they are connected by a faint glow. Honestly its no talent of mine to see it like this, any half experienced, dark adapted observer would see it easily and in direct vision with this scope. The 15" shows the Bubble, but not like this at all. This is what surprised me so much. I have seen that large glob at the end of M31's arm with the 15", can't remember the name but I hope theres more in there! I love this scope!
  19. It was very good tonight under avg transparency! about the filters- older Astronomiks might be a bit wider than the new ones but they are still good. My 24" is really responding to the tight older Lumicon OIII I have on the Veil.
  20. Promises, promises- the weather forecast was wrong again- at least 2 of them with the third more accurate...supposed to be very high trans but it was avg then poor. The first part of the evening was pretty good- not great but good for sky quality and after viewing NGC7331 and the fleas over to the Quintet I go and yes it is a Quintet! Very happy to easily see the 5 members. The object was a large triangle formation with another tight galaxy next to the bottom one and lower again and away a bit was a fifth galaxy very near a star. I used the 10mm BCO at 249x but 499x with the VIP added really woke things up here... this combo is excellent actually. Chuffed to bits so they say lol! A big puzzlement for me tonight- I Sky Commandered over to the Bubble nebula and saw a large .8 deg wide curved arc? I have not seen this before- has anyone else? I must revisit. A new favorite for me is now NGC40 a great planetary- the Bowtie nebula. I was getting structure and segments of an annular ring I believe, using the 10BCO native at 249x and no filter, this one really will strut its stuff under better conditions and will be visited regularly. The scope was the 24", EP's 20mm Lunt, 10BCO/VIP barlow and Lumicon OIII/UHC filters. How has the Bubble nebula shown to other members?
  21. Off topic, but the sky here tonight might be extremely good... I'm thinking NGC7331 and dissecting Stephans Quintet further with the orthos. After this back to the picturesque Veil, wait until you see those little forked tips at the end of the 2 brighter wisps... What do you have for an OIII?
  22. lol! This is exactly what happened to me using the SQM... I used to drive piles of miles way up in the bush to observe- only to realize our cabin was just as good! I do miss the adventures though, but its sure nice living under dark skies. Your gonna like what you see in this scope....
  23. Your welcome and pursuing dark skies is fun in itself. Reading reports elsewhere I've noticed that when the term "Bortle" is used by some as a static label- I even did when I said I live in Bortle 1 skies. My skies vary as do others and to say that most any location is always "Bortle1" is very misleading. I read a report where the observer described a Bortle 2 sky as 22mag with high 7's NELM.....and then the site was then labelled Bortle 2. What I did in the pursuit of dark skies is to find a few dark sites that I could travel to and avoid cloud etc- it might be in your best interest to find sites such as this. I'll take a super transparent 21.4 sky over a 21.6 sky with lower trans. My best views come near zenith and I try to pick objects up high, like the Veil is now. The other night M81/M82 were nice in the 24" but no where near as good as they will be higher up. As far as the Little Veil, try many times after warming up the eyes but don't waste too much valuable dark sky time on it IMHO- too many better objects to see lol! Normally one challenge object is included in each serious obs session here, thats it.
  24. Iain, I can tell you this- my expectations are by far and away exceeded!! All clouds tonight- can't wait for some dark, fall transparency before the snow comes.
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