Collinder 399 - The Coathanger (Wolfgang Zimmermann)

Collinder 399 - The Coathanger

Collinder 399 (Cr 399 for short) or Brocchis Cluster is an asterism, an imprecisely defined arrangement of about 10 stars of the 5th to 7th magnitude. Its extension is about 1 °. The brightest star in the cluster is 4 Vul with a brightness of 5.2 mag, the total brightness is about 3.6 mag.

The asterism is in the constellation Fox in the northern sky. The geometric impression of the lighter single stars is the reason for the proper name clothes hangers or heap of clothes hangers. A diffuse spot can be seen with the naked eye, and the characteristic shape can be seen with binoculars or a small telescope.

The group was first mentioned in the literature by Al Sufi in 964, but is not included in the modern standard Messier, NGC and IC catalogs. Per Collinder added the group to his catalog of open star clusters in 1931.

(Source: Wikipedia)

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Collinder 399 (kurz Cr 399) oder Brocchis Haufen ist ein Asterismus, eine nicht präzise definierte Anordnung von etwa 10 Sternen der 5. bis 7. Größenklasse. Seine Ausdehnung beträgt etwa 1°. Der hellste Stern des Haufens ist 4 Vul mit einer Helligkeit von 5,2 mag, die Gesamthelligkeit beträgt etwa 3,6 mag.

Der Asterismus liegt im Sternbild Fuchs am Nordsternhimmel. Der geometrische Eindruck der helleren Einzelsterne ist der Grund für den Eigennamen Kleiderbügel oder Kleiderbügelhaufen. Mit bloßem Auge ist ein diffuser Fleck zu erkennen, mit dem Fernglas oder kleinen Teleskop erkennt man die charakteristische Form.

Die Gruppe wurde in der Literatur zum ersten Mal von Al Sufi im Jahre 964 erwähnt, ist aber nicht in die modernen Standard-Kataloge Messier, NGC und IC aufgenommen. Per Collinder nahm die Gruppe 1931 in seinen Katalog offener Sternhaufen auf.

(Quelle: Wikipedia)

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Status	Advanced success
Started	...
Astrometry.net job	4638726
PixInsight job	5JN0KBYYXPV6G9UQ8IXJ11PRGVYFR27Y
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h26m29s.15
RA (top/left)	19h32m48s.31
RA (top/right)	19h20m26s.36
RA (bottom/right)	19h20m13s.83
RA (bottom/left)	19h32m26s.83

Dec (center)	+19°53′37″.10
Dec (top/left)	+20°48′00″.2
Dec (top/right)	+20°54′11″.9
Dec (bottom/right)	+18°58′30″.0
Dec (bottom/left)	+18°52′27″.8

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