IC 391, an unusual 3 armed spiral galaxy

[Menno555]

In my pursuit of small(er), seldom captured objects, I stumbled across IC 391 in Stellarium.
IC 391 is a MAG12.5, three-armed spiral galaxy in Camelopardalis. It sits at around 75 million lightyears and is around 23 thousand lightyears wide.
Personally I find it the most unusual (and cool) galaxy I captured so far. And much to my surprise there is even some detail visible in the arms
Bit more info and detailed image by Hubble at https://esahubble.org/images/potw1105a/

Menno

Bortle 6/7
Meade LX200 8" f/10 ACF OTA (f/10,3 effective)
Ioptron CEM25EC mount (no guiding)
Baader Neodymium filter
Zwo ASI071MC Pro camera

Captured with SharpCap Pro @ -10 Celsius / White balance R50 B50
80 x 180 sec / Gain 0 / Offset 4
20 x darks, 50 x flats and 50 x darkflats

Stacked with SiriL en SiriliC

Processed with Siril and Photoshop
Siril: Histogram
Photoshop: StarXterminator, Camera Raw Filter (blacks, white balance, saturation, clarity), NoiseXterminator, crop to 1600px.

IC 391

IC 391_RGB_sm.jpg (461.22 KiB) Viewed 1211 times

[timh]

That is a very good find Menno! I must admit that when I too quickly read your script I did start wondering where the obscure constellation 'Stellarium' might be before I realised that you meant the planetarium software . Tim

[Menno555]

Thanks Tim!
And now that you mention, I can imagine the Stellarium confusion

Menno