CCD image taken with a ST-9E/AO-7 CCD camera thru Kopernik’s 20 inch F/8.1 telescope. The exposure was 10 minutes. The field of view is approximately 8x8 arc minutes, with North at top.
NGC 6842 was discovered in 1919 by Curtis. In has a faint 14th magnitude irregular disk with traces of ring structure. The central star is magnitude 16.2, and the nebula is about 50 arc seconds in diameter.
Both the NGC and P-K catalogs have slight errors in the position of this nebula. The coordinates shown below are those measured from the Kopernik image.
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George Normandin, KAS
December 4th, 2002