Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599 (Gary JONES)

Celestial hemisphere: Southern · Constellation: Grus (Gru) · Contains: HD219369 · HD219380 · HD219494 · HD219609 · HD219630 · IC 5294 · IC 5308 · NGC 7552 · NGC 7582 · NGC 7590 · NGC 7599

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Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599

Powered byPixInsight

Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599

This was a very quick imaging session, mainly to test the CEM70 after I rebuilt it and lubricated all the moving parts.

Tracking was significantly improved, and the mount ran much more quietly.

I was keen to try the Grus quartet because it was very close to zenith in the early evening, and my view is restricted by trees. Luckily I managed to capture 29 subs before the quartet was obscured by trees.

This was not an ideal night for imaging - the moon was at 75% and separation from Grus was only about 30°, so the subs suffered from significant moon glow.

I stacked the subs using PixInsight, then used StarXTerninator to separate the galaxies and stars onto separate layers for further processing using NoiseXTerminator and Affinity Photo.

Australian Astrophotographers
Mac Users Group

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	8643343
PixInsight job	Y7S1UWTWHJGTE1U8QTSI5GMT1JDB4AXS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h18m00s.108
RA (top/left)	23h15m29s.503
RA (top/right)	23h20m46s.278
RA (bottom/right)	23h20m29s.451
RA (bottom/left)	23h15m15s.644

Dec (center)	-42°22′39″.70
Dec (top/left)	-42°44′03″.29
Dec (top/right)	-42°39′49″.70
Dec (bottom/right)	-42°00′57″.46
Dec (bottom/left)	-42°05′15″.57

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Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599

Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599

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Image Index:

Contribution Index (beta):

Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599

Grus Quartet = NGC 7552 + NGC 7582 + NGC 7590 + NGC 7599

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Sky plot

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