View Full Version here: : Ngc 4731
Here's another galaxy twisted by gravitational forces. The galaxy in the centre is NGC 7431. A barred spiral galaxy some 65 million years away near the Virgo supercluster. The colours come through fairly well showing the lovely blues where young stars are present in the arms. This galaxy is similar in size, but just a little smaller than our own galaxy, The Milky Way.
Instruments:
Telescope: 10" Ritchey-Chrétien RCOS
Camera: SBIG STL-11000 Mono
Mount: Astro-Physics AP-900
Focal Length: 2310.00 mm
Pixel size: 9.00 um
Resolution: 0.82 arcsec/pix
Exposure Details:
Red 20X600 Bin1
Green 12X600 Bin1
Blue 18X600 Bin1
Lum 48X600 Bin1
Total Exposure: 16.33 Hours
Thanks for looking…
Default Flickr Resolution
https://www.flickr.com/photos/97807083@N00/53023373156/in/dateposted/
Link to high res version:
https://live.staticflickr.com/65535/53023373156_776f33abac_o.jpg
strongmanmike
07-07-2023, 08:12 AM
Ah the galaxy that doesn't quite know what sort of galaxy it wants to be :lol: nice one Terry :thumbsup:
Mike
Peter Ward
07-07-2023, 09:04 AM
That's a very tidy image....and testimony to the skilled use of older, but very high quality gear that still works supremely well.
I'm beginning to think CCD based cameras have a cleaner/tighter look that CMOS has yet to deliver. I guess time will tell.
It's also refreshing to see a deep and accurately assembled LRGB palette.
(I am growing weary of seeing so many random and often garish NB palettes)
Really well done :thumbsup::thumbsup:
gregbradley
07-07-2023, 09:48 AM
That's a terrific galaxy image Terry.
I tend to agree with Peter here. I wouldn't be selling my CCD gear just yet.
Greg.
markas
07-07-2023, 09:52 AM
Fine image:thumbsup::thumbsup:
It's good to see a deep rendition of this somewhat enigmatic galaxy.
Mark
That the best kind. We don't want normal ;). Cheers.
Thanks Peter. I do like LRGB.
Thanks Greg. A large pixel Full Frame CMOS would be killer expensive. I love large pixels.
Thank you Markas. It's a funky looking galaxy. I love the flattened arms.
Joshua Bunn
08-07-2023, 05:47 PM
Once again Terry, a wonderful, natural looking image, and look and all the faint fuzzies to the right!
Thanks Josh. I think that's the best part. I love that stuff.
Dave882
09-07-2023, 03:40 PM
Beautifully captured and processed. Really lovely result!!
alpal
09-07-2023, 04:33 PM
Nice picture Terry,
you imaged a bound galaxy pair.
Well done.
Translated from here:
https://de.wikipedia.org/wiki/PGC_43526
LEDA/PGC 43526 (also NGC 4731A)
is a Hubble-type irregular galaxy in the constellation Virgo on the ecliptic.
It is estimated to be 63 million light-years from the Milky Way
and about 35,000 light-years across.[2]
Together with NGC 4731, it forms the bound galaxy pair Holm 472.
cheers
Allan
Cheers, That is a strange-looking object indeed. Being twisted in this part of the sky is the norm. :thumbsup:
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