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Old 02-05-2022, 05:42 PM
markas (Mark)
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Ngc 2997

This spiral lies about 40Mly away in Antlia.

(For some unknown reason estimates range from 24 - 140Mly)
Image FOV is 25' x 21'.

Exposure: 2hr L, 1hr each RGB. Total 5hr unguided
Equipment: 300mm Officina RiDK, Moravian G4-9000EC, Astrodon Filters, DDM85 mount.

Mark
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Last edited by markas; 02-05-2022 at 07:37 PM.
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  #2  
Old 02-05-2022, 06:36 PM
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Bassnut (Fred)
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Excellent!. well processed too. Given your cam is 3056 (H) × 3056 (V) pixels, could you link to a bigger pic?. The 93.3 kb thumb nail is hardly doing it justice.
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Old 02-05-2022, 06:38 PM
AdamJL
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Have to agree, that'd be great to see bigger. Beautiful shot that needs a higher res image to appreciate
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Old 02-05-2022, 08:21 PM
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That turned out well. Little bluish patches in a few places I haven't seen before.

One of my favourite galaxies.

Greg.
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  #5  
Old 02-05-2022, 08:47 PM
Dave882 (David)
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Fantastic shot and well processed too! Great job
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  #6  
Old 03-05-2022, 02:42 AM
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Ant0nio (Tony)
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Nicely done Mark .

Best,
Tony
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Old 03-05-2022, 10:11 AM
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strongmanmike (Michael)
Highest Observatory in Oz

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Nice work Mark

Mike
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Old 03-05-2022, 07:05 PM
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Paul Haese
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Nice colour and detail. It's a great object.
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Old 04-05-2022, 03:48 PM
markas (Mark)
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Thanks all. I appreciate your comments.


Fred and Adam: Although the camera has 3056 x 3056 pixels, 80% of them went in the crop! At 2.4m focal length, I can't really get up close to a galaxy of this size. Hence the thumbnail, which is heavily compressed by the iis upload, isn't all that bad. Certainly some of the whispy outer parts of the galaxy don't show as well, and the detail is not quite as crisp, but the only way, I think, to get you significantly tighter details would be 20 hours of exposure....or, of course, a bigger OTA.


Thanks again for looking,
Mark
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