#1  
Old 04-05-2021, 09:47 PM
muletopia's Avatar
muletopia (Chris)
Want to do better

muletopia is offline
 
Join Date: Mar 2014
Location: Kojonup Western Australia
Posts: 443
moonlight experiment M83

Folks,
I have collected 8 hours of images of M 83.
Three consecutive nights with increasing moon and last night.Lat night was dark and good for imaging, Nebulosity RMS .3 to .35 seconds.


The stack of four nights is not as good as the stack of the first of the first two nights plus last night.
Oh for more nights like last night.


The image attached is a stack of 37 exposures.
All images from a QHY8L OSC camera, gain 0, exposure length 600 seconds.


Telescope Takahashii Mewlon 210 with field flattener.


Mount Mesu Mount 200 (mark 1).


The flattener is not totallu successful and the darks need to be reshot for last nights images.


What else?


Comments please.
Chris
Attached Thumbnails
Click for full-size image (threedaystneb.jpg)
33.8 KB133 views
Reply With Quote
  #2  
Old 04-05-2021, 11:34 PM
raymo
Registered User

raymo is offline
 
Join Date: Sep 2011
Location: margaret river, western australia
Posts: 6,070
Stunning!!
raymo
Reply With Quote
  #3  
Old 05-05-2021, 05:57 AM
PKay's Avatar
PKay (Peter)
Registered User

PKay is offline
 
Join Date: May 2017
Location: DEPOT BEACH
Posts: 1,643
Well done Chris
Reply With Quote
  #4  
Old 05-05-2021, 08:26 AM
Zuts
Registered User

Zuts is offline
 
Join Date: Mar 2007
Location: sydney
Posts: 1,830
That is a fantastic image scale for galaxies, really good details.
Reply With Quote
  #5  
Old 05-05-2021, 06:10 PM
muletopia's Avatar
muletopia (Chris)
Want to do better

muletopia is offline
 
Join Date: Mar 2014
Location: Kojonup Western Australia
Posts: 443
Thanks

Thanks for the kind words.
It would be nice if someone were to suggest how I could improve the image,probably in the processing steps.


Chris
Reply With Quote
  #6  
Old 05-05-2021, 08:39 PM
PKay's Avatar
PKay (Peter)
Registered User

PKay is offline
 
Join Date: May 2017
Location: DEPOT BEACH
Posts: 1,643
Hi Chris

I use Pixinsight so can't help with Nebulosity.

Also your image is too small to see much & what I can see has a lot of noise and little detail.
Have a look at what others have done to use as a reference.

When uploading to IIS, I let the server downsize the image, it will accept up to about 1.2Mbyte.


Basic steps after calibrating aligning and integration are :
Background extraction
De Noise
De Convolution
Stretching (developing)

Non linear stage:
Do the tutorials, the methods are endless...

Here is mine (NB): https://www.iceinspace.com.au/forum/...e.php?a=274421
Hi Res: https://www.astrobin.com/full/j771z5/0/

And from ChrisD (OSC): https://www.iceinspace.com.au/forum/...d.php?t=190701

Last edited by PKay; 05-05-2021 at 09:09 PM.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 04:18 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement