NGC 7789 - Caroline's Rose (astronomy_ffm)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 7 rho Cas · 8 sig Cas · NGC 7789 · The star ρCas · The star σCas · V373 Cas

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NGC 7789 - Caroline's Rose

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NGC 7789 - Caroline's Rose

This image was taken under a Bortle 4 sky in my parents' backyard (20.64 mag/arc sec^2) and it is my first photo here on Astrobin. I am in astrophotography since last year and unfortunately there were hardly any good nights to practice. I hope you like my first picture. I did some experiments with StarSpikes Pro, just in case you might wonder about the spikes on some of the brighter stars.

NGC 7789 is an open star cluster in the constellation Cassiopeia. It is about 8000 light-years away and consists of about 15000 stars. Its age is estimated at 1.5 billion years, which makes it much older than most of its kind. Because of this age and concentrated appearance the cluster seems to occupy a position somewhere between open star clusters and globular clusters, which led again and again to discussions among experts. In 1958, astronomers Allan Rex Sandage and Eleanor Margaret Peachey proved that it is indeed an open star cluster. It was discovered on 30.10.1783 by Caroline Herschel. Visual observations show a pattern of rose petals in the star arrangements, which is why the cluster is also called "Caroline's Rose".

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Status	Advanced success
Started	...
Astrometry.net job	5095219
PixInsight job	2INWDUR3K23JM3WAFO20YL4BAV5QHJP3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h57m33s.28
RA (top/left)	23h50m47s.10
RA (top/right)	23h52m26s.93
RA (bottom/right)	00h03m57s.51
RA (bottom/left)	00h03m00s.70

Dec (center)	+56°41′40″.0
Dec (top/left)	+57°45′45″.7
Dec (top/right)	+55°28′51″.9
Dec (bottom/right)	+55°36′14″.2
Dec (bottom/left)	+57°53′41″.8

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NGC 7789 - Caroline's Rose

NGC 7789 - Caroline's Rose

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NGC 7789 - Caroline's Rose

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