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 Nebula - HOO

  • Please log in to reply
14 replies to this topic

#1 Dave53N

Dave53N

    Vostok 1

  • -----
  • topic starter
  • Posts: 170
  • Joined: 12 Dec 2018
  • Loc: Central Alberta, Canada

Posted 13 May 2022 - 09:57 PM

A total of 10h 40m were taken over 7 nights between Dec 2021 and Apr 2022 using an ES ED102 triplet and ASI533MC-Pro with an L-eXtreme dual band filter and a CEM60 mount.  Processed with APP as an HOO image after  separating Ha and OIII.

 

I had planned on collecting more data, but poor weather prevented it.

 

I’d appreciate any comments.

 

Dave

 

M1_Crab_L-eXtreme_2022-02-01_120sec_ED102_ASI533MC_102G-640m-320L-1Ha-1.64OIII-HOO_2-lpc-cbg-10-3-0-St-RT5-gi-crop-to-1600px.jpg

 

 


  • F.Meiresonne, Jim Thommes, Dean and 36 others like this

#2 the Elf

the Elf

    Skylab

  • *****
  • Posts: 4,177
  • Joined: 06 Sep 2017
  • Loc: Germany

Posted 14 May 2022 - 01:26 AM

It is a good image. The nebula is sharp and shows a lot of detail. You have a lot of O3 in the data. The stars are not to my taste, a bit disk like. This may of course be my personal taste. The background is virtually free from noise. With a small amount of noise left in the image it looks more natural. Just for information, not trying to make it a competition here is my M1 aligned to yours to point out the difference in the stars. As you can see my data is lacking the O3 data. It is an unfiltered OSC combined with Ha from a mono camera.

 

M1_compare.jpg

 

My data is 14.5h taken over 10 nights during 13 months. Find details here:

https://www.elf-of-l...bj_M1_2022.html


  • John Miele and cucubits like this

#3 Dave53N

Dave53N

    Vostok 1

  • -----
  • topic starter
  • Posts: 170
  • Joined: 12 Dec 2018
  • Loc: Central Alberta, Canada

Posted 14 May 2022 - 12:18 PM

Many thanks for you comments, I appreciate the comparison with your data. 

 

I agree my stars are too flat, I like yours better. I think I  applied too much sharpening.

 

Dave



#4 Juno18

Juno18

    Viking 1

  • *****
  • Posts: 515
  • Joined: 07 Dec 2018
  • Loc: Long Beach, Mississippi, USA

Posted 15 May 2022 - 10:04 PM

A very beautiful image Dave. Nice work!



#5 meygray3833

meygray3833

    Vostok 1

  • -----
  • Posts: 103
  • Joined: 02 Nov 2016

Posted 15 May 2022 - 11:06 PM

Brilliant image, great job! waytogo.gif



#6 AstronomyFred

AstronomyFred

    Explorer 1

  • -----
  • Posts: 75
  • Joined: 21 Dec 2020
  • Loc: North Rhine - Westphalia, Germany

Posted 16 May 2022 - 06:03 AM

Nice image Dave,

chrystal clear.

 

Great work with the 533mc! Love that camera :)



#7 John Miele

John Miele

    Fly Me to the Moon

  • *****
  • Posts: 5,222
  • Joined: 29 May 2005
  • Loc: North Alabama

Posted 16 May 2022 - 07:24 AM

Great work! Amazing what a OSC camera with the right filters can do these days! 



#8 Look at the sky 101

Look at the sky 101

    Vanguard

  • -----
  • Posts: 2,395
  • Joined: 02 Nov 2021
  • Loc: Citizen of the earth .

Posted 16 May 2022 - 07:43 AM

Beautiful work. 



#9 Dave53N

Dave53N

    Vostok 1

  • -----
  • topic starter
  • Posts: 170
  • Joined: 12 Dec 2018
  • Loc: Central Alberta, Canada

Posted 16 May 2022 - 12:56 PM

Many thanks, all of your comments greatly appreciated.

 

Dave



#10 Mert

Mert

    Cosmos

  • *****
  • Posts: 9,181
  • Joined: 31 Aug 2005
  • Loc: Spain, Pamplona

Posted 17 May 2022 - 12:00 PM

Brilliant image Dave, that combo of 533 plus L-extreme has proven it's strength.

#11 Dave53N

Dave53N

    Vostok 1

  • -----
  • topic starter
  • Posts: 170
  • Joined: 12 Dec 2018
  • Loc: Central Alberta, Canada

Posted 18 May 2022 - 01:40 PM

Thanks Mert. I agree, it's a good combination.

 

Dave



#12 Jim Thommes

Jim Thommes

    Fly Me to the Moon

  • *****
  • Posts: 6,511
  • Joined: 20 Sep 2004
  • Loc: San DiegoCA USA

Posted 19 May 2022 - 06:50 PM

Wonderful image Dave. Lovely detail and star color. It might be a tad over sharpened. If you turn your monitor up you can see the evidence of some ringing on the stars.



#13 Dave53N

Dave53N

    Vostok 1

  • -----
  • topic starter
  • Posts: 170
  • Joined: 12 Dec 2018
  • Loc: Central Alberta, Canada

Posted 20 May 2022 - 12:32 AM

Thanks Jim.

 

Yes, if I zoom in I can see  it is somewhat over sharpened.  Thanks for pointing it out.  Something to bear in mind.

 

Dave



#14 elmiko

elmiko

    Fly Me to the Moon

  • *****
  • Posts: 6,374
  • Joined: 27 Jul 2009
  • Loc: Arizona

Posted 20 May 2022 - 09:03 AM

Outstanding work Dave!

The L-Extreme filter paired with the 533 is a killer combo!



#15 Dave53N

Dave53N

    Vostok 1

  • -----
  • topic starter
  • Posts: 170
  • Joined: 12 Dec 2018
  • Loc: Central Alberta, Canada

Posted 20 May 2022 - 11:39 AM

Thanks Mike

Yes, I'm very happy with the combination. 

 

Dave


  • elmiko likes this


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.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics