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NGC 6802 (15,762 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 6802

NGC 6802, C 1928+201, Cl Collinder 400, VI 14, h 2042, GC 4498

RA: 19h 30m 36s
Dec: +20° 16′ 0″

Con: Vulpecula
Ch: MSA:1220, U2:162, SA:8

Ref: SIMBAD, DAML02, Archinal&Hynes (2003)

(reference key)

Type: open cluster, 11m

Mag: B=10.07, V=8.8

Size: 5′
PA: ?


A small telescopic cluster lying on the east end of Collinder 399, the Coathanger.

Historical observations

William Herschel (c.1784)

Synonyms: H VI-014

Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a cluster of extremely small and very compressed stars, a parallelogram of 4' long, 2' broad."

Published comments

Trumpler, R.J. (1928)

Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 5' and the class as 3 1 mE.

Photo index

Photo Index by Jim Lucyk: Sky&Tel. 9/86 p317.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag open cluster.

Modern observations

Walter Scott Houston

Houston calls it a faint open cluster, about 3' in diameter; "I've have a good view of it with my 4-inch Clark refractor when the sky was clear and dark." He wrote: "Even small telescopes reveal the cluster as a 5' patch, elongated north-south, inside a quadrilateral of 9th to 11th magnitude stars. A fairly large instrument will resolve the cluster into members of magnitude 13 and fainter.

Mitsky, Dave (IAAC)

Observer: Dave Mitsky (e-mail: djm28@psu.edu)

Instrument: 12.5-inch equatorial reflector Location: Harrisburg, Pa, U.S.A.

Light pollution: moderate Transparency: poor Seeing: good

Time: Tue Jul 8 06:20:00 1997 UT Obs. no.: 207

Despite the less than ideal conditions on Tuesday morning (very hazy and light polluted skies) I was able to observe NGC 6802, one of my favorite dim star clusters. This small (3.5') Herschel 400 open cluster lies about 1 degree northeast of the Coathanger (Collinder 399). Using a 16mm Brandon Erfle (129x) and a 12.5" Cave Newtonian I was barely able to see NGC 6802 as an eleventh magnitude powder-like spray of stars. While in the area I also took a look at NGC 6800 and Stock 1, two nearby open clusters. NGC 6800 is a moderate sized group of over 30 stars and Stock 1 is a large cluster with many bright members.

Brian Skiff

15cm - 60x: lies inside a triangle (two are pairs). a few *s res.

- partially res in to ~20 *s of m13.5+ @ 140x. rectangular oval outline 4'x2'.5 in pa10 (seems sl off from N-S). a few brtr *s N side, much graniness and some haze. BS, 22May1988, Anderson Mesa.

- consp fine-grained fuzz @ 50x, partially res @ 80x. 195x shows bar in pa15 about half height of lg trapezoid of br *s that contains it, bar elong in 3:1 ratio. brtst *s m13.5 nr N end and one on E edge of bar. many more nr threshold, about tow doz w/o much fudging. BS, 5Sep1989, Anderson Mesa.

25cm - fairly f, elong N-S. a small triangle on N end and a wide pair to NW. about seven *s res plus gran.

30cm - 15 *s @ 238x w/f bkgrnd haze. small trapezium of m13 *s in N section. 3'x2'. 5' NW & NW are pairs.

Contemporary observations

Magda Streicher

2006 July 18

Alldays (22.50S, 20.12E, 770m).

12-inch f/10 SCT (76x, 218x)

Conditions: Good

For the first time in my astronomy life I have the feeling of approaching a distant little town with flickering lights envelope in mistiness (12" 76x). This very elongated cluster in a north to south direction shines soft with close flickering lights upon one another in the distant dark of night. The similar streetlights topped with a soft glow of light pollution, draped against the background of a distant dark mountain. This dainty cluster is situated at the east end of the "Coat hanger Cluster".

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

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