Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

M1 - Crab - SHO - Edge 11

  • Please log in to reply
12 replies to this topic

#1 anismo

anismo

    Fly Me to the Moon

  • *****
  • topic starter
  • Posts: 5479
  • Joined: 30 Jan 2014
  • Loc: Austin, TX, USA

Posted 13 September 2017 - 11:50 PM

I have been trying to post in CCD imaging forum but there is not much in terms of feedback there. So back to the tried and trusted place for feedback.

 

This year I have been working on bright targets at longer focal length to keep acquisition easier and it is very enjoyable :) .The camera is ASI1600MM-Cool @unity gain and the scope is Edge11 at native focal length of 2800mm. my setup is waay oversampled at 0.28 arcsec/pix. Yes, I do read about optimal sampling and seeing .. but it is what I have and it seems to be working quite well. The seeing has been very good lately with almost no wind here in austin and the mount is having a pretty good time tracking typically under 0.4 arcsecs. I do see some elongation in RA when seeing is bad, but it is still manageable. 

 

This is a SHO mapping of M1 . This target has pretty good signal in all three channels resulting in psychedelic colors after the mix. I also have two other mixes that are more sedate but I still prefer this. This is a bright target and is quite forgiving with shot subs (5min subs for all three channels).

 

I threw about 2 nights worth of subs and kept only the sharpest ones. Even minor deconvolution gives it a over sharpened look. I will also post the other two mixes I have with sedate colors.

 

C&c welcome as always

 

Compressed CN version

M1_SHO_FINAL_ST_800.jpg

 

AB Version

get.jpg


  • John Wunderlin, drjolo, nicknacknock and 14 others like this

#2 happylimpet

happylimpet

    Surveyor 1

  • *****
  • Posts: 1734
  • Joined: 29 Sep 2013
  • Loc: Southampton, UK

Posted 14 September 2017 - 04:49 AM

So SHO = RGB in this mix?

 

(Superb by the way!)



#3 anismo

anismo

    Fly Me to the Moon

  • *****
  • topic starter
  • Posts: 5479
  • Joined: 30 Jan 2014
  • Loc: Austin, TX, USA

Posted 14 September 2017 - 09:04 AM

Thanks Happylimpet. Yes, this is a straight SII/Ha/OIII channel mapping to R/G/B channels .


  • happylimpet likes this

#4 entilza

entilza

    Mercury-Atlas

  • *****
  • Posts: 2988
  • Joined: 06 Oct 2014
  • Loc: Oakville, ON, Canada

Posted 14 September 2017 - 09:10 AM

Hey Anis, I can see what you mean about oversharpened, but that is so cool regardless!  What if you didn't decon this image?  



#5 rigel123

rigel123

    Voyager 1

  • *****
  • Posts: 14083
  • Joined: 29 Jun 2009
  • Loc: SW Ohio

Posted 14 September 2017 - 09:14 AM

I remember imaging this years ago in the same palette.  Great job, and psychedelic for sure!



#6 anismo

anismo

    Fly Me to the Moon

  • *****
  • topic starter
  • Posts: 5479
  • Joined: 30 Jan 2014
  • Loc: Austin, TX, USA

Posted 14 September 2017 - 09:39 AM

Thanks Martin and Warren

 

@Martin, It actually looks pretty shar before decon. I did very very minor just to tighten the star. I will post a version with no decon at all. It looks almost like the "worms" you get when you do too much deconvolution but it actually was there from the start.

 

The L channel itself is a 0.33Ha/0.33OIII/0.34SII 


Edited by anismo, 14 September 2017 - 09:40 AM.


#7 FiremanDan

FiremanDan

    Soyuz

  • -----
  • Posts: 3932
  • Joined: 11 Apr 2014
  • Loc: Virginia

Posted 14 September 2017 - 01:25 PM

That resolution tho... 

Stunning. 



#8 anismo

anismo

    Fly Me to the Moon

  • *****
  • topic starter
  • Posts: 5479
  • Joined: 30 Jan 2014
  • Loc: Austin, TX, USA

Posted 14 September 2017 - 01:41 PM

Thank you Dan!



#9 ImNewHere

ImNewHere

    Viking 1

  • *****
  • Posts: 725
  • Joined: 29 Mar 2017
  • Loc: Nashville, IN

Posted 14 September 2017 - 08:44 PM

Sublime



#10 Jeff2011

Jeff2011

    Gemini

  • *****
  • Posts: 3113
  • Joined: 01 Jan 2013
  • Loc: Sugar Land, TX

Posted 14 September 2017 - 09:01 PM

Far out man.  waytogo.gif



#11 anismo

anismo

    Fly Me to the Moon

  • *****
  • topic starter
  • Posts: 5479
  • Joined: 30 Jan 2014
  • Loc: Austin, TX, USA

Posted 15 September 2017 - 08:57 AM

Thanks Scotty and Jeff :) I am pretty happy the way it turned out.



#12 f430

f430

    Vostok 1

  • *****
  • Posts: 156
  • Joined: 29 Sep 2015
  • Loc: La Mesa, CA.

Posted 15 September 2017 - 09:24 AM

Beautiful!

And wow, you certainly set a high bar for possibilities with the 11" Edge HD and ZWO 1600MM-C camera!

 

Thanks, John



#13 anismo

anismo

    Fly Me to the Moon

  • *****
  • topic starter
  • Posts: 5479
  • Joined: 30 Jan 2014
  • Loc: Austin, TX, USA

Posted 15 September 2017 - 09:37 AM

Thanks John. I threw out about 50% of the subs (most of which were during full moon and bad seeing) but when the conditions permit it has been an amazing setup. My main objective with the Edge11 was to do both high res DSO and planetary imaging and it has delivered well on both front. 

 

The ASI1600 has been an excellent camera and I am happy I made the switch. It worked very well with the Tak FSQ106 and I was thinking the oversampling is going to be an issue with the Edge11 but that hasnt been a problem (In fact I like the resolution when the seeing permits).. not to mention it is nice to do lunar imaging without touching the train during those clear/moon nights.




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.







Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics