ICEINSPACE
Moon Phase
CURRENT MOON
Waning Gibbous 94%
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07-12-2009, 04:10 PM
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Registered User
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Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
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Fornax Galaxy Cluster
G'day all,
I took this shot back in October but haven't had the time to get it on my website until a few days ago, and now finally put a post here.
It's of the Fornax area, with NGC 1365 in the frame of course. There's lots of galaxies in there, I'm really really happy with how many the 350D has managed to pick up. Taken with my Megrez 90 using FFv3 so relatively large FOV with focal length of ~600mm.
I had the shot printed at 50cm x 40cm and it's stunning  This is the kind of shot I just love - galaxies, lots of them, some with detail and some so small you can just imagine how old and far away they are!
I think my favorites are the almost-edge-on galaxies which show some colour variation from centre to edge. And the irregular galaxy down the bottom which I wasn't expecting to show.
Technically it could be better of course. For one, the WO FFv3 has over-corrected the edges somwhat resulting in some stars bing somewhat cross-like. But overall this is minor and only noticeable to us perfectionists  , considering the gear, I'm very happy
http://www.rogergroom.com/items/forn...luster_ngc1365
Enjoy
Now trying to choose another nice field like this to shoot on the coming weekend
Roger.
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07-12-2009, 04:17 PM
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Astro-Addict
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Join Date: Jun 2009
Location: Perth, Western Australia
Posts: 633
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Great image Roger
I especially like the barred spiral galaxy at the top right of the frame
Would longer exposures bring out more of this groups galaxies?
Im definitely going to be at Tammin on Monday to spie out this group
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07-12-2009, 04:29 PM
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Registered User
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Join Date: Feb 2006
Location: Perth, Western Australia
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Thanks Sean
Longer exposures would bring out more galaxies. There's a lot more galaxies in the FOV and I think in exposures of twice the length, under the same dark skies, I would get a several more of them.
However, personally I don't think longer exposures are worth it for me. The 350D is only so sensitive and really I just need a more sensitive camera and until that time I'd rather move on to other objects than to spend twice as long taking the same area to have more faint galaxies show up when I already have 15+
I think I worked out my limiting mag of galaxies seems to be around the mag 16 mark for this image.
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07-12-2009, 04:37 PM
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Astro-Addict
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Join Date: Jun 2009
Location: Perth, Western Australia
Posts: 633
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Quote:
Originally Posted by rogerg
Thanks Sean
Longer exposures would bring out more galaxies. There's a lot more galaxies in the FOV and I think in exposures of twice the length, under the same dark skies, I would get a several more of them.
However, personally I don't think longer exposures are worth it for me. The 350D is only so sensitive and really I just need a more sensitive camera and until that time I'd rather move on to other objects than to spend twice as long taking the same area to have more faint galaxies show up when I already have 15+
I think I worked out my limiting mag of galaxies seems to be around the mag 16 mark for this image.
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Thats awesome limiting magnitude 
I would probably go longer exposures as Im a deep sky nut
Im hoping to to some deep-sky exposures myself when I get the Argonavis and Servocat
I dont know how well that would go though.
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07-12-2009, 04:41 PM
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ze frogginator
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Join Date: Oct 2007
Location: Sydney
Posts: 22,077
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That's a really deep shot. Gotta be stoked with that one. You nailed focus and guiding. Real smooth process to. Top shelf.
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07-12-2009, 04:56 PM
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Fast Scope & Fast Engine
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Join Date: Nov 2006
Location: Broken Hill N.S.W
Posts: 3,305
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Great clear image in a great part of the sky.
Cheers Kev.
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07-12-2009, 04:57 PM
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Widefield wuss
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Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,993
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Nice!
I too love these wide field shots that are just chock full of galaxies... I plan to do a shot similar to this one at 480mm on Coma Berenices...
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07-12-2009, 05:29 PM
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Amongst the stars
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Join Date: Jun 2006
Location: Glen Innes, N.S.W.
Posts: 2,888
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Yes I agree, I love these sort of shots! Galaxies galore.
Isn`t that a PN at the bottom middle of your frame. Can`t remember it`s designation but?
cheers
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07-12-2009, 05:39 PM
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Registered User
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Join Date: Feb 2006
Location: Perth, Western Australia
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Thanks everyone, glad you like it too
Gary - it's definitely a galaxy, I found the matching designation in TheSky on Saturday but have forgotten it right now  .. it was an NGC, and an irregular galaxy. There's actually another one slightly to the left and up from it, same colour, but is much smaller and fainter
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07-12-2009, 10:05 PM
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Registered User
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Join Date: Sep 2009
Location: Macquarie Park or Plumpton, NSW
Posts: 157
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fantastic! love it... 
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07-12-2009, 11:49 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,622
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Yeh that's a great grouping Roger! Really good capture and nice framing.
I want to do this field before it moves out of range too, its a great field.
Mike
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08-12-2009, 11:56 AM
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Have scope will travel!
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Join Date: Jan 2009
Location: Pitnacree NSW
Posts: 1,501
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Roger,
That is an awe inspiring image. OOdles of galaxies to get lost in. Brilliant.
Frank
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08-12-2009, 12:34 PM
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Registered User
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Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
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Glad you all like it  Thanks for the replies, much appreciated
I just saw this APOD which is a similar type of thing and stunning:
http://antwrp.gsfc.nasa.gov/apod/ap091203.html
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09-12-2009, 03:21 PM
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Support your local RFS
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Join Date: May 2006
Location: Wamboin NSW
Posts: 12,405
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That's a beauty Roger, lovely and crisp.
Well done
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09-12-2009, 03:57 PM
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Registered User
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Join Date: May 2006
Posts: 2,590
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Lovely shot!!!
Cheers,CS
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09-12-2009, 09:33 PM
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No More Infinities
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Join Date: Apr 2008
Location: Townsville
Posts: 9,698
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09-12-2009, 10:37 PM
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Registered User
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Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
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Quote:
Originally Posted by renormalised
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I had the same thought
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09-12-2009, 11:20 PM
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Registered User
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,989
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That is a nice shot Roger. Heaps of small galaxies and I really like the composition of the shot. Nice going.
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09-12-2009, 11:31 PM
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No More Infinities
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Join Date: Apr 2008
Location: Townsville
Posts: 9,698
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Quote:
Originally Posted by rogerg
I had the same thought 
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What a pity you can't swap shots 
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10-12-2009, 03:55 PM
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Newtonian power! Love it!
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Join Date: Jul 2008
Location: Mandurah
Posts: 2,597
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I remember you taking that shot  the poor megrez twins where lonely for most of the night  a credit to the smoothness of your kit! and to the processing of such a image!
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