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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 29 Sep 2011 (Thursday) 07:12
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M31 - Lots of firsts

 
chris.bailey
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Sep 29, 2011 07:12 |  #1

First light with a new camera combination and the first image in several months. First image in LRGB. First time using an Off Axis Guider so all in all a bit of a learning curve in capture and processing. A few rogue hot pixel trails and still a bit of a gradient but very pleased with the way the new camera/filter wheel and guider performed. Roll on a few more dark clear nights.

EQ6Pro/FSQ85 7 x 300sec each LRGB Atik383L+/EFW2 Baader LRGB 2"/OAG(lodestar) guided PHD, captured with Artemis Capture, processed PixInsight (Darks,Flats,Bias)

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paul3221
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Sep 29, 2011 09:22 |  #2

wow! Stunning! You got so much detail in the arms, and outer regions. One of the better ones I've seen. Certainly better than my attempts.


Paul
Sony A7RII, 5DII, a bunch of lenses and lighting... Whatever gets the shot... ;-)a
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squirrelsnest
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Sep 29, 2011 10:04 as a reply to  @ paul3221's post |  #3

What a picture.......excellen​t job!


.

"I never think of the future. It comes soon enough." Albert Einstein

  
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RAWuser
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Sep 29, 2011 10:24 |  #4

Man, that's beautiful!!




  
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mckinleypics
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Sep 29, 2011 10:30 |  #5

So freakin' cool!!!

I'm really glad I don't know what all those gadgets you mention are. This seems like an expensive photographic road to go down.


Dave
7D, 70-200mm 2.8 L IS, 24-70mm 2.8 L, 50mm 1.4, Tokina 11-16mm 2.8, 580EXII
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rick_reno
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Sep 29, 2011 10:51 |  #6

Amazing photo, but I have to confess I have no idea what any of the stuff in your list of gear is. It's so foreign to me I'm not even sure it's what you used.




  
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naddieuk
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Sep 29, 2011 12:52 as a reply to  @ rick_reno's post |  #7

Absolutely fantastic image there! bw!
By the way, are you using an astro webcam to capture the actual images? I ask because you mention LRGB.


Canon Powershot S95, Canon EOS 1000D attached to Skywatcher Explorer 150P on an EQ-3 unguided mount.
My Flickr site. (external link)

  
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spit
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Sep 29, 2011 13:49 |  #8

excellant image so far!- by the gradient, are you referring to the blueish cast i see on my monitor?




  
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SteveInNZ
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Sep 29, 2011 13:57 |  #9

That must have been stressful, having that fun stuff sitting there waiting. It looks like it was worth it though. I like how you've processed it to have a DSO in a rich field of nice tight stars.
Well done.

Steve.


"Treat every photon with respect" - David Malin.

  
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DutchVince
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Sep 29, 2011 18:55 as a reply to  @ SteveInNZ's post |  #10

Very very nice!

I guess I'll buy myself an autoguider as well :)


7D|400D|10-22|60 Macro|18-55|100-400L|600
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drevilsmom
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Sep 29, 2011 19:38 |  #11

Absolutely GORGEOUS!!!


Elizabeth

40D and modded 20D| 18-55 mm f/3.5-5.6 IS | nifty fifty | assortment of pentax lenses with adapter
CG-5GT | AT102ED

  
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megrac
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Sep 29, 2011 23:27 |  #12

Nice image! those Takahashi scopes are awesome!


60D | Canon 15-85 | Canon 200mm f/2.8L II | Canon 400mm f/5.6L | 580EX II. And a heap of Astrophotography gear.

  
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RAWuser
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Sep 29, 2011 23:35 |  #13

chris.bailey wrote in post #13181132 (external link)
EQ6Pro/FSQ85 7 x 300sec each LRGB Atik383L+/EFW2 Baader LRGB 2"/OAG(lodestar) guided PHD, captured with Artemis Capture, processed PixInsight (Darks,Flats,Bias)

Here's the gear list 'translated' for those who want to know. :-)


EQ6Pro/FSQ85 = tripod/telescope

7 x 300sec each = picture x exposure time

LRGB Atik383L+/EFW2 Baader = sensor type and the filters used; most likely photographed seperately and merged in post.

LRGB 2"/OAG(lodestar) guided PHD = used to keep main telescope precisely on a target.

captured with Artemis Capture = program used to control sensor and capture images with

processed PixInsight (Darks,Flats,Bias) = post production stuff

I hope I got that right, heheh!




  
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chris.bailey
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Sep 30, 2011 04:06 as a reply to  @ RAWuser's post |  #14

Thanks all, yes RAWUser that is the translation, perhaps worth adding that the OAG (Off Axis Guider) is a small prism that picks off light from the edge of the light circle and that light is fed up to a second camera that is connected to the mount to issue guide instructions that keep the main camera on target at a sub pixel level.

Spit - yes, the original image had a strong gradient caused by Light Pollution, I just have not completely killed it.

NaddieUK - yes, on this occasion it was a B&W camera, cooled to -20 with images taked through clear, red, green, and blue filters. These are then assembled afterwards to produce the RGB image.

Steve - yes it has been very frustrating but the cloud gods have not been very friendly of late.




  
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chris.bailey
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Sep 30, 2011 08:23 |  #15

Added another hour or so of data to it last night which has allowed a better colour rendition and killed off the residual gradient. Aiming for an hour or so in each channel so a bit more yet.

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M31 - Lots of firsts
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