Leo Triplet and NGC 3593 at 432mm (Lee)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: 12.95 · 415 Palatia · 73 n Leo · IC 2661 · IC 2666 · IC 2684 · IC 2694 · IC 2704 · IC 2708 · IC 2745 · IC 2762 · Leo Triplet · M 65 · M 66 · NGC 3593 · NGC 3623 · NGC 3627 · NGC 3628 · The star 73Leo

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Leo Triplet and NGC 3593 at 432mm

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Leo Triplet and NGC 3593 at 432mm

There's been a surprising run of clear nights recently and alongside a new moon too - all very strange and likely the only occurrence in 2022!

While not a great focal length for galaxies, the framing for this made for an interesting shot with NGC 3593 in the lower right. Some nice distant galaxies showing up dotted around too.

I wasn't optimistic during capture but once I'd thrown some of the rubbish Luminance away, I was left with a stack that had some surprising detail in it. The RGB didn't add much but let some of the differing colours come through nicely. In the end I'm really pleased with the end result.

I'm still struggling with LRGB calibration so couldn't push the image too far (keeping the background in check).

The tidal tail for NGC 3628 is there in the Lum stack but I can't bring it out in a natural way so it'll have to remain elusive again.

Reviewing so many short subs was extremely tedious, I need to think about using a lower gain with increased full well for LRGB!

Thanks for looking.

Captured with N.I.N.A., pre-processed in APP and processed in PixInsight.

UK Astro-Imaging

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Status	Advanced success
Started	...
Astrometry.net job	5566546
PixInsight job	GPRG2FPB15F85OEGVHOPMUZVPMEY4JYJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h17m41s.59
RA (top/left)	11h22m53s.28
RA (top/right)	11h12m41s.40
RA (bottom/right)	11h12m31s.64
RA (bottom/left)	11h22m39s.94

Dec (center)	+13°09′42″.0
Dec (top/left)	+13°55′58″.9
Dec (top/right)	+14°00′10″.9
Dec (bottom/right)	+12°22′57″.5
Dec (bottom/left)	+12°18′43″.0

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Leo Triplet and NGC 3593 at 432mm

Leo Triplet and NGC 3593 at 432mm

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Leo Triplet and NGC 3593 at 432mm

Leo Triplet and NGC 3593 at 432mm

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