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.

jimness

Jupiter from 11th Nov (my first of the year)

Recommended Posts

Morning all,

Been a bit slow sharing this cos I keep trying to reprocess to get a better result - this one is from 90s captures in each channel, de-rotated the AVIs in Winjupos, but I've just aligned the final RGB images in Photoshop. I'm having real trouble with the RGB image de-rotation process in Winjupos; it seems to add loads of noise that's not there in the source images...? Anyone else seen this?

Anyway, this one is still somewhat noisy but I'm fairly satisfied considering I haven't done much with this equipment for a while!

I got several other captures that night so am considering doing a little animation just for giggles. Haven't tried that before.

Cheers folks

Jim

8183551937_acfbd74a34.jpg

Celestron 9.25" SCT, DMK21 w/ ICX618 cip, Astronomik LRGB filters, EQ6

SE London murky smoggy 'orrible skies

  • Like 2

Share this post


Link to post
Share on other sites

Some nice detail in there. You may want to try RGB align in Registax to help remove the red and blue rings. The "noise" you are getting from Winjupos may just be as a result of bad alignment, so you may want to check you have input the time correctly and play around with the alignment circle to make sure it is set properly on each of the R, G and B.

Share this post


Link to post
Share on other sites

Some nice detail in there. You may want to try RGB align in Registax to help remove the red and blue rings. The "noise" you are getting from Winjupos may just be as a result of bad alignment, so you may want to check you have input the time correctly and play around with the alignment circle to make sure it is set properly on each of the R, G and B.

Thanks Freddie, I think you're onto something here! As for inputting the time correctly, it should be the exact mid-point of the capture in UT, right? The thing is it appears to be only accurate to 1/10th of a minute - so if it's (say) 00:00.15, I have to enter 00:00.2 or 00:00.3 when I really want to enter 00:00.25....or have I completely misunderstood that field?

I guess another useful thing would be to synch my laptop time with some online time server (do those things still exist?)

Cheers

Jim

Share this post


Link to post
Share on other sites

My experience of this is that the time is not super super critical but does need to be right and depends to some degree on the quality of the R, G and B images. If you want to be as accurate as possible, you should use the time the reference alignment frame used for stacking from the AVI was captured. I think making certain the alignment on each image is spot on and the RGB align in Regi would give you the greatest improvement. Let us know how you get on.

  • Like 1

Share this post


Link to post
Share on other sites

Cheers for the advice Freddie. Here's a Winjupos reprocess with the time set to the start of the AVI, as I tend to use an early frame for alignment. Bit of NR in Photoshop etc., then a size reduction which I think helps a bit.

8180527106_625910b85b_o.jpg

Jim

Share this post


Link to post
Share on other sites

loving the detail you have captured here mate!!! :) i recently imaged jupiter for the 1st time ever a few days ago :) i see that a lot of people rotate the planet in PP how come people dont leave it as it is? just noticing it a lot lately? im very new to AP also :)

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 Gryffster
      Hi - I'm a relative newcomer to telescopes with goto - still trying to figure them out.
      I have a problem with Goto on the 8SE.
      Alignment usually works (Not always, but usually)

      I believe my set up is correct - time and date, DST and UTC (It's currently BST in the UK)

      I usually use 2-star alignment (Currently, most convenient for me are Sirius and Procyon)
      Alignment usually succeeds, but goto just doesn't. The scope slews away, sometimes even to a completely different part of the sky from the selected object (I'm familiar enough with
      the sky to be able to identify several bright stars without assistance)
      Bizarrely, this happens even if the goto object is one of the alignment stars - how could it possibly not be able to find a star when you've explicitly told it where it is?
      I've read that goto sometimes doesn't work well on battery power, so I've aquired a mains adapter. No change.
      I haven't yet updated the handset firmware (I'm waiting for a serial-usb adapter.)
      Any help would be appreciated.
      Thanks
    • By mikeyscope
      This planetary grouping from 20th March around 5.30am shows Saturn to the left with conjunction of Jupiter above & Mars below, sharp eyed may also see...  Io, Ganymede & Callisto in a string just right of Jupiter.
      Image taken from Lesmahagow, South Lanarkshire looking toward the SE.
      Pentax K1 / Pentax 67  165mm lens / Exp. 2 secs @f8 / iso 200
      Ioptron tracker at siderial.

    • By The-MathMog
      Because of the current situation, I have, as many of you guys probably have too, spend a lot more time under the stars when possible.

      It has literally been over a year since last I was out doing some astrophotography because of work.

      So here is my second take after the long break, NGC 3344 (The Sliced Onion Galaxy).
      Initially I thought it would be a lot fainter than it was, so it was basically a shot in the dark, of just trying to get back at doing this.
      But the final image actually showed a lot more detail than I would've hoped for!
      Spring lent a lot of clear night, but those seems to be gone already. I would've hoped for a few more hours to add some more luminance data to it, as I did have to push it quite a bit.
      I am not too happy with the shape of the stars either. Guiding was not very stable through the night, even though balance and polar alignment seemed to be good. Might need to update my Celestron PEC data? 

      Any advice or feedback is very welcome! 🤩
      NGC 3344 (Sliced Onion Galaxy)
      _______________________
      Image:
      Luminance - 13x16 min
      RGB - 2x16 min each
      Flat and Dark calibrated
      Gain 111
      Offset 40
      Total Integration - 5 Hours 4 minutes  (LRGB)
      _____________________
      Gear Used:
      Skywatcher 150PDS
      Celestron AVX Mount
      ZWO ASI 183MM-Pro
      Baader 2'' Neodymium Filter
      Baader 1,25'' RGB Filters
      ZWO Mini EFW
      Explore Scientific Coma Corrector
      ToupTek Camera G-1200-KMB Mono Guider
      Orion Mini 50mm Guidescope
      ______________________
      Software:
      Sharpcap
      PHD 2
      Photoshop CS2
      Deep Sky Stacker
      Stellarium/Stellarium Scope
      Astrotortilla

    • By Geordie mc
      Hi. Just starting to use autofocus with the Celestron motor focus and SGP. Can anyone give me some starting points for step size, backlash etc. I’m getting there but wasting a lot of imaging time just trying to get this to work accurately. I’m currently trying a step size of 75 and a backlash of 50. Any tips most appreciated.
    • By Tugboat
      I'm having a bit of a clearout to make way for a new project.  For sale here are a couple of items that have seen very litle use:
      1) Celestron Omni CG-4 GEM Mount + Tripod - £125 *** SOLD ***
      This is in generally very good condition.  There are a few marks, and scuffs consistent with normal use.  There are also a couple of minor (small) patches of surface rust on a few of the bolts and steel legs.  It has seen very litle use, and has been in storage for the past few years so it is time to find it a good home.  The small rubber tips that go on the very end of the feet have perished, so these won't be included.
      It includes tubular steel tripod, 2 counterweights, built in polar scope, built in bubble level and slow motion controls.
      Due to size and weight, collection would be preferred from the RG27 area.  If you are reasonably local, I would also consider delivering.
      Price: £125, but I am open to offers.  Payment can be made via Bank Transfer (preferred), Paypal or cash on collection
      2) ***SOLD*** Celestron Omni XLT 127mm Telescope ***SOLD ***
      Again this is in very good condition, and has been in storage for the past few years and has had very little overall use.  A few marks on the dovetail as is to be expected.
      It includes a small finderscope, diagonal and a 25mm eyepiece
      Can be collected from the RG27 area, I could deliver if you are reasonably local, or can be posted for an additional £8.
      Price: £110, but am open to offers.  Payment can be made via Bank Transfer (preferred), Paypal or cash on collection *** NOW SOLD ***
      Any questions please do let me know.










×
×
  • Create New...

Important Information

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