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DOCdb

Deep Sky Observer's Companion – the online database

 

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Entire DOCdb database of 18,816 objects.

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NGC 7681 (17,864 of 18,816)

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NGC 7681

NGC 7681, LEDA 71558, MCG+03-59-063, UGC 12620, II 242, h 2247, GC 4973

RA: 23h 28m 54.95s
Dec: +17° 18′ 31.1″

Con: Pegasus
Ch: MSA:1208, U2:169, SA:17

Ref: SIMBAD

(reference key)

Type: galaxy (in pair), S0

Mag: B=14.2, V=?

Size: 1.513′ x 1′
PA: 91°

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

NGC 7681. CGCG, RNGC, and UGC all chose the wrong galaxy in spite of the very good NGC position (from two determinations by John Herschel). This is even more curious as the correct galaxy is a full magnitude brighter and twice as large as the one they all chose. Furthermore, the description in the NGC mentions the double star following the nebula: there is none following the wrong galaxy, but there is a clear double just north-following the correct object. The identification is unambiguous.

Historical observations

William Herschel (c.1784)

Synonyms: H II-242

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "F, S, iR, near and preceding 2 or 3 stars."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 15.0 mag galaxy. Their coded description reads SO),R,DIF,SMBM.

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