Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped (Pam Whitfield)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 3185 · NGC 3187 · NGC 3189 · NGC 3190 · NGC 3193

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Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped

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Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped

Many of the interesting galaxy targets are just too small for my setup..... of the Hickson catalog of compact galaxy groups only this one is in the ballpark with drizzle/cropping. I got lucky with some particularly stable conditions on the night of the 19th so kept on going with the luminance until the very early hours.

It's less fashionable than the Leo Triplet but the distorted S-shaped galaxy in the centre of the frame drew me to this one as a change from my usual galaxy targets this time of year. One aspect in processing was not to over-sharpen and lose the fuzziness in the elliptical galaxy.

It would be nice to double the L time on this to cut down on the noise more but forecasts recently have been shall we say less than accurate....

Original
Final
C

C

Description: Having uploaded an image yesterday last night was unexpectedly good with better transparency trading off against some seeing. I managed to add another 18 good luminance subs to the image allowing me to have a lighter touch during processing. The better signal-to-noise from transparency and better statistics let me push the black level a touch further without localised clipping artefacts around residual noise.
Altogether I'm pretty happy with this and not sure I could improve on it much with my setup without masses more data.

Uploaded: ...

Women Astrophotographers
Yorkshire Astro Imaging
UK Astro-Imaging

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Status	Advanced success
Started	...
Astrometry.net job	4459650
PixInsight job	M6K2GCFPA1DEJ3CR1QNZGBP274L7M1CY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h17m51s.746
RA (top/left)	10h19m16s.630
RA (top/right)	10h19m17s.186
RA (bottom/right)	10h16m26s.423
RA (bottom/left)	10h16m26s.720

Dec (center)	+21°53′20″.24
Dec (top/left)	+21°28′03″.95
Dec (top/right)	+22°18′33″.91
Dec (bottom/right)	+22°18′33″.77
Dec (bottom/left)	+21°28′02″.55

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Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped

Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped

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Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped

Hickson Compact Galaxy Cluster 44 (HCG44) - aka The Leo Quartet drizzled x2 & cropped

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