ICEINSPACE
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13-10-2014, 05:33 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,176
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Awesome Mike and Trish.. reeeally amazing depth and resolution.
Only other image I have seen of the Helix that goes as deep and shows those intricate fine shock fronts as well is one by the Galaxy Evolution Explorer (GALEX) Interesting that the Ha features match the UV ones so well.
Man, I wish you had a slightly larger FOV...?..mozaic perhaps
Great scope and mount and observatory you have
Mike
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13-10-2014, 05:38 PM
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Narrowfield rules!
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Join Date: Nov 2006
Location: Torquay
Posts: 5,064
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That's just nuts, insane depth right there . Goes to show what 1 hr subs on serious appature can do. And bin 2 too, excellent
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13-10-2014, 06:34 PM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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Marcus, Russell, Simon, Clive, Richard,
Thanks for the encouragement.
Best,
Mike n Trish
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13-10-2014, 06:40 PM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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Quote:
Originally Posted by strongmanmike
Only other image I have seen of the Helix that goes as deep and shows those intricate fine shock fronts as well is one by the Galaxy Evolution Explorer (GALEX) Interesting that the Ha features match the UV ones so well.
Mike
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Hi, Mike,
That Galex shot is just jaw-dropping. Thanks for the link.
Best,
Mike n Trish
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13-10-2014, 06:46 PM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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Quote:
Originally Posted by Bassnut
Goes to show what 1 hr subs on serious aperture can do. And bin 2 too
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Cheers, Fred. Vaguely wonder whether to try even longer 2x2 subs one day. Unbinned, there's no great advantage, but 2x2 I'm not sure of the maths.
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13-10-2014, 07:26 PM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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Gobsmacking Mike!
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13-10-2014, 07:39 PM
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Registered User
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Join Date: Jan 2012
Location: Melbourne
Posts: 3,612
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Hi Mike,
What an amazing photo.
I am sure it has scientific value.
cheers
Allan
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13-10-2014, 08:21 PM
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Turn the lights off!
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Join Date: Aug 2012
Location: Parklea NSW
Posts: 1,207
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13-10-2014, 09:23 PM
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Registered User
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Join Date: Nov 2011
Location: Sydney
Posts: 1,452
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That's an awesome Image, Mike and Trish. Incredible detail. Top Job!
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13-10-2014, 09:32 PM
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Novichok test rabbit
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Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 10,388
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GULP!!!!!
Wow indeed
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14-10-2014, 08:09 AM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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Cheers, Rod, Allan, Geoff, David, Xeno in Lux Urbis,
Thanks muchly. Glad you like it.
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14-10-2014, 08:17 AM
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Registered User
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Join Date: Feb 2006
Location: Sydney
Posts: 17,901
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That really picked up some fine detail. Nice and deep. The main feature here I think are those fine shock fronts you mentioned. I haven't seen them before.
Greg.
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14-10-2014, 08:39 AM
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Registered User
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,944
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The binning would account for why I was struggling to get much with the 12" with 30 minute subs at 1x1. This has got me thinking now. Binning will reduce resolution a lot on the 12, so I am wonder how long I would need to go to capture the same amount of photons. I think over 1 hour per sub.
Excellent detail. Inspiring image.
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14-10-2014, 08:46 AM
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Registered User
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Join Date: Oct 2011
Location: U.S.A
Posts: 755
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Nice explanation and image. I tried 50 hours with the FSQ and 16803 unbinned and did not get any of the faint structures seen above the main "v" structure to the left. Well done.
j
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14-10-2014, 08:56 AM
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Spam Hunter
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Join Date: Jun 2005
Location: Oberon NSW
Posts: 14,302
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Wow!
Al.
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14-10-2014, 09:18 AM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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Quote:
Originally Posted by Paul Haese
The binning would account for why I was struggling to get much with the 12" with 30 minute subs at 1x1. This has got me thinking now. Binning will reduce resolution a lot on the 12, so I am wonder how long I would need to go to capture the same amount of photons. I think over 1 hour per sub.
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Hi, Paul,
Thanks muchly! With 0.55 sec arc pixels and very best 2 sec arc seeing, we're not quite critically sampled 2x2, so we're elsewhere messing around combining 1x1 for stars and highlights, 2x2 for faint nebulosity, and pro rata in between. The technique fails miserably with small faint background galaxies, but seems good for extended stuff. Will have something to show soon.
That said, your shots are hugely sharper than ours!
Best,
Mike
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14-10-2014, 12:23 PM
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Registered User
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Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,463
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Inspirational Mike and Trish! Fantastic effort with the results to show.
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14-10-2014, 02:19 PM
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Registered User
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Join Date: May 2006
Location: Atm somewhere in Perth
Posts: 575
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Fantastic picture You should get an APOD for this !
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14-10-2014, 02:43 PM
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Registered User
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,944
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Quote:
Originally Posted by Placidus
Hi, Paul,
Thanks muchly! With 0.55 sec arc pixels and very best 2 sec arc seeing, we're not quite critically sampled 2x2, so we're elsewhere messing around combining 1x1 for stars and highlights, 2x2 for faint nebulosity, and pro rata in between. The technique fails miserably with small faint background galaxies, but seems good for extended stuff. Will have something to show soon.
That said, your shots are hugely sharper than ours!
Best,
Mike
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Yes my seeing contributes to that sharpness. Often quite good. I might have to try 2x2 binning on the helix as a test myself to get that faint stuff out.
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14-10-2014, 02:56 PM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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John, Al, Joshua, Marcus,
Thanks very much indeed.
Cheers,
Mike n Trish
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