The Coat Hanger - Collinder 399 (Neal Weston)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: 4 Vul · 5 Vul · 7 Vul · LBN 130 · LDN 739 · LDN 740 · LDN 748 · NGC 6802 · PGC 2807211 · PGC 2815292 · PGC 2815295 · PGC 2815297 · PGC 2815302 · PGC 2815306 · PGC 2815310 · PGC 2815334 · PGC 2815344 · PGC 2815395 · PGC 2815404 · PGC 2815415 · PGC 2815423 · PGC 2815432 · PGC 2815439 · PGC 2815457 · PK055+01.1 · Sh2-83 · The star 4 Vul · The star 5 Vul · The star 7 Vul

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The Coat Hanger - Collinder 399

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The Coat Hanger - Collinder 399

The Coat Hanger asterism, also known as Brocchi's cluster or Collinder 399.
I sat on this for quite a while as I was never quite happy with it, mainly the colours didn't look quite right despite being calibrated. Anyway here it is - I've pushed the saturation of the asterism stars quite hard to make them stand out and for a bit of artistic punch.
Also I used the 0.7x reducer on the Askar FRA400 for this and I notice quite a bit of chromatic aberration in the corners especially with blue stars. This is the first time I've tried it with an RGB image and I have quite a small sensor - it'll be interesting to see how it performs with a larger one.

Sony 694 Images

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Status	Advanced success
Started	...
Astrometry.net job	8653994
PixInsight job	M88D22F3MIHSCGPS0K6WWVSX5SY0LF3W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h26m51s.69
RA (top/left)	19h33m48s.22
RA (top/right)	19h24m43s.38
RA (bottom/right)	19h19m55s.81
RA (bottom/left)	19h28m57s.79

Dec (center)	+19°44′40″.4
Dec (top/left)	+19°52′37″.1
Dec (top/right)	+21°18′22″.6
Dec (bottom/right)	+19°35′39″.1
Dec (bottom/left)	+18°10′57″.0

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The Coat Hanger - Collinder 399

The Coat Hanger - Collinder 399

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The Coat Hanger - Collinder 399

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