#1  
Old 24-09-2021, 11:44 AM
Auspecial
Registered User

Auspecial is offline
 
Join Date: Feb 2016
Location: Sydney
Posts: 21
NGC 253: Sculptor Galaxy

First proper crack at a deep sky object with my new gear:
  • EQ6r pro
  • ZWO asi1600mm cool
  • GSO RC8 Carbon
  • ZWO asi120MM mini and OAG
No RGB for now, still trying to get my workflow sorted before introducing more challenges. I think my exposures may have been too long for my seeing or perhaps my gain was too high. Taken from a bortle 5 zone. I have very limited night sky visibility from the deck so that added some additional challenges. I also struggled to get phd2 to maintain its guide star. Also a strip along the bottom of the image was significantly darker than the rest of the image and had to be cropped out.

  • 14x80s light @-10C Gain 100 (18.6 minutes integration)
  • 10x80s dark @-10C Gain 100
  • Flats introduced a weird bump where a dust spot was, need to clean the sensor.
  • Bias. Didnt use as I got some weird vertical banding noise after including them.
Looking forward to doing some longer integrations when my setup workflow speed is increased.


FULL RES: https://www.astrobin.com/full/iq2r3q/0/
Attached Thumbnails
Click for full-size image (ST5.jpg)
215.8 KB81 views
Reply With Quote
  #2  
Old 24-09-2021, 06:07 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 21,452
Very cool. That's shaping up to be a great shot.
That should be in the deep space section.
Reply With Quote
  #3  
Old 24-09-2021, 08:39 PM
PKay's Avatar
PKay (Peter)
Registered User

PKay is offline
 
Join Date: May 2017
Location: DEPOT BEACH
Posts: 1,460
Good one Matt

A lot better than my first attempt.

Look forward to seeing the other filters!

Well done
Reply With Quote
  #4  
Old 24-09-2021, 10:13 PM
Auspecial
Registered User

Auspecial is offline
 
Join Date: Feb 2016
Location: Sydney
Posts: 21
Thanks for the kind words Marc and Peter
Reply With Quote
  #5  
Old 25-09-2021, 12:15 AM
raymo
Registered User

raymo is offline
 
Join Date: Sep 2011
Location: margaret river, western australia
Posts: 5,743
Providing that your darks match your lights, biases are unnecessary.
raymo
Reply With Quote
  #6  
Old 25-09-2021, 12:31 PM
Auspecial
Registered User

Auspecial is offline
 
Join Date: Feb 2016
Location: Sydney
Posts: 21
Quote:
Originally Posted by raymo View Post
Providing that your darks match your lights, biases are unnecessary.
raymo
That is very good to know thanks!
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 06:09 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Advertisement
NexDome Observatories
Advertisement
Bintel
Advertisement
Testar
Advertisement
Limpet Controller
Advertisement
Astronomy and Electronics Centre
Advertisement