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.

sgl_imaging_challenge_banner_30_second_exp_2_winners.thumb.jpg.b5430b40547c40d344fd4493776ab99f.jpg

Russe

Imaging with the 130pds

Recommended Posts

7 hours ago, Stub Mandrel said:

M31  -the galaxy that just keeps giving.

Wouldn't it be funny if budget astrophotographers from M31 are saying the same about the Milky Way right now..... :D 

John

  • Like 1
  • Haha 3

Share this post


Link to post
Share on other sites
On 29/08/2019 at 10:57, Adam J said:

FOV looks too big for it to be the ASI178mm cool but I may be proved wrong when Rob replies. 

Sorry, I've been a bit ill the past few days.

The veil shot was with the qsi 683 ☺ overall I was pleased with the field flatness on that shot. It did quite well over a 22mm diagonal sensor. 

I'll be firing up the 178 when I get my hands on the long overdue 135mm f2 lens. Been waiting over 2 weeks for it now... it's starting to take the Michael.

  • Like 1

Share this post


Link to post
Share on other sites
42 minutes ago, JohnSadlerAstro said:

budget astrophotographers from M31 are saying the same about the Milky Way right now.....

And frustratingly sad that we'll never know;(

Share this post


Link to post
Share on other sites
On 02/09/2019 at 21:07, JamesAstro2002 said:

AndromedaGalaxyFinalHDRCrop.thumb.jpg.3fd2d47c82b589dbc002511c02bc038a.jpg

3 Hours of data on Andromeda with the 600D from last night.

I noticed that I seem to have them oddly shaped stars again. Last time, I fixed this by undoing the primary mirror retention clips a bit as they were tight up against the mirror. Now that i've been able to get back out for a night of imaging, they're back again! Any ideas as to why this could be ? I double checked the clips again and they're still loose, although they are still touching the mirror, are they supposed to touch it or not? I also made sure that the primary collimation locking screws aren't overly tightened. Also, through my cheshire, collimation looks to be spot on.

As for the mirror clips, there should be just enough room to slip a fag paper between the clip and the mirror... so get down the corner shop and grab a pack of rizla..lol  :D

  • Like 2
  • Haha 1

Share this post


Link to post
Share on other sites
3 minutes ago, Uranium235 said:

As for the mirror clips, there should be just enough room to slip a fag paper between the clip and the mirror... so get down the corner shop and grab a pack of rizla..lol  :D

Okay, cheers 😂. Though, I'd have to wait another year until I'm old enough to legally buy them, lol. 

  • Haha 1

Share this post


Link to post
Share on other sites

Hi all,

First image of the season for me. Happy that my kit survived the summer holidays!

M52 and the bubble nebula

20 * 300s at ISO1600 on a modified 1100d

Have to say that this is the trickiest target to process that  I have ever encountered!

All comments welcome

Cheers 

Autosave007_Quick.jpg

  • Like 7

Share this post


Link to post
Share on other sites
On 03/09/2019 at 20:02, JohnSadlerAstro said:

Wouldn't it be funny if budget astrophotographers from M31 are saying the same about the Milky Way right now..... :D 

John

As M33 is much close to M31 than us I am sure they are saying it about M33 not us. 

  • Like 1

Share this post


Link to post
Share on other sites
On 24/08/2019 at 12:41, dyfiastro said:

Hi everyone

First image from the new observatory and replacement telescope setup.

Still a little work needed in regards to equipment spacing etc... but was really good to get everything up and working.
looking at the image I think I need to reduce the spacing between the mpcc and ccd if anyone can help confirming this that would be great

M33 - Triangulum Galaxy

Total imaging time = 48 minutes

Skywatcher HEQ5, Skywatcher 130PDS, QHY8L, OVL OAG+QHY5II-M.

1506892513_M33TriangulumGalaxy.thumb.jpg.5729a8ca56cb4dcd76517f9adb55d47a.jpg

I've got QHY8L too. What length exposures are you using?

Nice image 🙂

  • Like 3

Share this post


Link to post
Share on other sites
On 10/09/2019 at 08:10, Stu Wilson said:

I've got QHY8L too. What length exposures are you using?

Nice image 🙂

This was the first time I had used the camera.
I was using 180s exposures for this shot

  • Like 1

Share this post


Link to post
Share on other sites

Hi everyone

Managed to get out again last night and try out a few changes. I still need to pull the scope off at some point and do a strip down, flock and re-collimate but I am hoping I work out most of the major issues.
I do not normally image when the moon is up but it was a good chance to get out and test things out.

1685311686_stephansquintet.thumb.png.cb3b8cf25ed500b194a904b2c1387f80.png
1910405131_stephansquintetannotated.thumb.jpg.b52504294767131b553d23688f9238d1.jpg

261667009_Northamericannebula-moonlit.thumb.png.3cf38ba4026a19adc1efe7447d8595f8.png

1470038034_CometC2018W2Africano1.thumb.png.8f23a566cc1979cd7fab707aa1922cc5.png

  • Like 4

Share this post


Link to post
Share on other sites
10 hours ago, dyfiastro said:

Managed to get out again last night and try out a few changes. I still need to pull the scope off at some point and do a strip down, flock and re-collimate but I am hoping I work out most of the major issues.
I do not normally image when the moon is up but it was a good chance to get out and test things out.

Borth! Must be great for astro, I used to live in Talybont, a lifetime ago...

Share this post


Link to post
Share on other sites

My prey from this week starhunt :)
The goal was to get through the dark clouds
Failed, - but I like it anyway :) so I decided to share
Gain 200 - 120s each, around 11.5H in total: 
ASI1600MM-Pro and Baader NB - London.

North America Nebula

 

Edited by RolandKol
  • Like 8

Share this post


Link to post
Share on other sites
On 19/09/2019 at 09:46, Stub Mandrel said:

Borth! Must be great for astro, I used to live in Talybont, a lifetime ago...

Its not bad at all, 90% of the street lights now go out after about 11PM in borth as well. I live just north in Ynyslas, the only downside is the "Dyfi Microclimate" and the blooming wind.
 

  • Like 1

Share this post


Link to post
Share on other sites
12 hours ago, dyfiastro said:

I live just north in Ynyslas,

You luck b***r.

My first job was hacking down rhododendrons at Ynys-Hir. I bet tehy are still there...

Share this post


Link to post
Share on other sites

The latest modification to my 130pds. The addition on a Pegausus Astro focus cube V2 and a new clamping system I designed to eliminate tilt cause by the eye piece holder (although not focus tube droop).

The clamp works to pull the coma corrector tight up against the flat of the eye piece holder by placing two rings, one scope side and one camera side of the eye piece holder and then using three thumb screws to draw the coma corrector tighly against the flat. This method of longitudinally clamping the gear to the focuser is much better than any lateral clamping via thumb screws or a compression ring as it does not rely on the coma corrector being fully flush during tightening.

Note: you need to mount the focus motor upside down and add a spacer or it will not clear the thumb screw that tightens the spider vein in place.

focuser.thumb.jpg.bfee8c5bea4b229b3c998342c6500304.jpg

Adam

Edited by Adam J
  • Like 1

Share this post


Link to post
Share on other sites

Reprocessed my old M42 data from last year. Learned a lot since then and it's safe to say it wasn't the best in the world to work with noise wise, especially the walking noise

If I get a chance this winter, I'll be sure to get a much nicer image in terms of noise this time around

Orion 2.1.jpg

Edited by matt_baker
  • Like 2

Share this post


Link to post
Share on other sites
On 02/11/2019 at 21:42, Adam J said:

The latest modification to my 130pds. The addition on a Pegausus Astro focus cube V2 and a new clamping system I designed to eliminate tilt cause by the eye piece holder (although not focus tube droop).

The clamp works to pull the coma corrector tight up against the flat of the eye piece holder by placing two rings, one scope side and one camera side of the eye piece holder and then using three thumb screws to draw the coma corrector tighly against the flat. This method of longitudinally clamping the gear to the focuser is much better than any lateral clamping via thumb screws or a compression ring as it does not rely on the coma corrector being fully flush during tightening.

Note: you need to mount the focus motor upside down and add a spacer or it will not clear the thumb screw that tightens the spider vein in place.

focuser.thumb.jpg.bfee8c5bea4b229b3c998342c6500304.jpg

Adam

Hi Adam what would the result of image train tilt actually do to the shot?.

 

Share this post


Link to post
Share on other sites
4 hours ago, Fieldsy said:

Hi Adam what would the result of image train tilt actually do to the shot?.

 

In effect it means that the sensor is not at 90 degrees to the optical axis and so you get poor star shape and focus at the edge of the sensor. The bigger the sensor the more prominent the effect because the change in distance is greater across the sensor surface. It can also cause poor correction of coma / spherical aberration as the optics of the correct can also be tilted to the optical axis. Its not something that is ever really going to effect you with your smaller sensor or even something the size of a 460EX or ASI183mm pro, its more an issue with 4/3rd sensors and larger. Hence you don't need to worry about it right now. 

I am going to take a look at your data BTW I just have not had the chance yet its all go here. 

Adam 

  • Like 1

Share this post


Link to post
Share on other sites

Hi everyone

Not had the little 130 out for some time but this session gave me the chance to try out a cheepo non-branded cc. It plate solves to 585mm so gives a bit wider field than out of the box.

The stars are not very good, not as well defined as with the -rather nice- gpu cc,, and the colour aberrations surrounding them are noticeable. So, wider field, worse colour, fat stars. You win some you lose some! 

ngc457, eos700d

1965158941_1-457(copy).thumb.jpg.910e5f2dc7fc3eecde5a77718b547bf8.jpg

Edited by alacant
  • Like 3

Share this post


Link to post
Share on other sites

Need help on ghosting. 

Hi, I am new on 130PDS and I found that when I use this scope with SW coma corrector to do high contrast DSO imaging such as M42, I will get some ghosting. (I use APS-C DSLR)

Here is an example with β Orionis. Is it possible to fix it through flocking or some other things without changing my corrector? If not, is Baader MPCC III a good choice? Because I heard that this one cannot correct the coma as good as the SW one 

PS. I modified the mirror clip to make cleaner diffraction spike and I use L-pro filter. But the ghosting has been there before I modified or imaging without filter

1.png

Edited by martin070

Share this post


Link to post
Share on other sites

Been playing with Starnet++ on a Western Veil I took with the 130pds a few weeks ago. Starless and less starry versions below. Kit- 130pds, HEQ5, Cooled 550d, Quadband Filter, 26x 6mins with Flats, Darks and Bias. Uploading it here I can see I need to spend more time on the background of the star-less one- still quite pleased though :) 

 

720931466_WesternVeilNebulosity.thumb.jpg.7880276cea73443d521a9f8f05e7139a.jpg

410127921_WesternVeilQB191016.thumb.jpg.49276593bd05050dbb2bbd954958f08c.jpg

 

  • Like 3

Share this post


Link to post
Share on other sites
18 hours ago, Whistlin Bob said:

Been playing with Starnet++ on a Western Veil I took with the 130pds a few weeks ago. Starless and less starry versions below. Kit- 130pds, HEQ5, Cooled 550d, Quadband Filter, 26x 6mins with Flats, Darks and Bias. Uploading it here I can see I need to spend more time on the background of the star-less one- still quite pleased though :) 

 

720931466_WesternVeilNebulosity.thumb.jpg.7880276cea73443d521a9f8f05e7139a.jpg

 

There's a sort of repeated 'fish scale' pattern at the top of the Starless one, was that the clone stamp? Still, I want a play with this 🙂

  • Like 1

Share this post


Link to post
Share on other sites
50 minutes ago, Stub Mandrel said:

There's a sort of repeated 'fish scale' pattern at the top of the Starless one, was that the clone stamp?

Yeah- it didn't show up so much in the editor at full resolution but stuck out in the jpeg like a sore thumb. It does leave quite a few artefacts behind, but they're easily dealt with if you take a bit more care than I did!

Share this post


Link to post
Share on other sites
4 minutes ago, Whistlin Bob said:

Yeah- it didn't show up so much in the editor at full resolution but stuck out in the jpeg like a sore thumb. It does leave quite a few artefacts behind, but they're easily dealt with if you take a bit more care than I did!

In Photoshop there's a 'healing Brush' which sometimes does a smoother job.

  • 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 stevebb
      Celestron C8 XLT + extras and SkyWatcher Star Travel 80 (ST80)
      I have a Celestron C8 with XLT Starbrite coatings. Will include the full length base plate, both visual and imaging backs, scope rings, front 8" end cap and the finder scope with it. No box I'm afraid. Optics are good and clean, focal length is huge - 2300mm from memory. This lot would cost close to £1300 new and one with less spec went for £750 on fleabay recently. Might be interested in a part exchange or will let it go for £450 collection only.
      Also, I have a SkyWatcher Star Traveler 80 - good optics, used as a guide scope - just the scope itself (does not include the barlow in the photo) looking at around £50 for it.
      I have decided to save up for another Equinox or even an Esprit.
      Please excuse some of the colours - I used my astro modded 6D which was in the observatory so the "nice" purple is actually black !!
      Both these are collection only.




    • By Clear Skies!
      I am going to buy Skywatcher EQ5 Pro Go-To mount. But, unfortunately, I am low on budget.
      So, does someone know where can I buy the cheapest EQ5 pro mount?
      Yesterday there was a low price for it (350 €), but they changed it.
      Thank you for your time!
    • By Bruno Marin
      I found this setup in internet and make me think, with AZEQ6 GT and 2 scopes, different weights and size, without counterweight in AZ mode! 
      - I can put a MAK100mm 3kg +- and a OO VX10l  12kg +- without counterweight?
       
      Does anyone have this setup mount and already used without counterweight with two telescopes of different weights? Is it really necessary to have a balance using in AZ mode?
      The problem to centralize the object with both scopes is true? With the SW AZEQ6 GT?
      Follow the images
      a TSA-120 with 6.5 kg i think and the other with 22kg i forgot the brand hehe you can help me?
       


    • By AstroRuz
      £180
      Selling a nice portable wide telescope with great glass and a great field of view
      I have two telescopes and I'm using the 80ED more currently and so this Telescope just isn't getting used anymore
      It has a longer dovetail (originally from the 80ED) so declination balance can be reached.
      Great performer for the price
      Collection only as P&P is like £40 (Northamptonshire - UK)
      Selling to fund a scope or mount upgrade.🤔
      Selling





    • By AstroRuz
      Skywatcher 150/1200 f8 planetary Newtonian.
      Bought this originally intending to set up a planetary rig but circumstances call for sale.
      Will come with eyepieces and a collimation eyepiece. Not used by myself and has seen very little use. Mirrors in good condition
      Collection only
      £50



×
×
  • Create New...

Important Information

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