NGC 246, planetary nebula

Planetary Nebula NGC 246 in Cetus

Planetary Neb NGC 246
CCD image taken with a ST-6 CCD camera thru Kopernik’s 20 inch F/8 telescope. The exposure was 10 minutes. The field of view is approximately 5x7 arc minutes.

NGC 246 is a Planetary Nebula in Cetus that was discovered in 1785 by William Herschel.

Description in The Deep Sky Field Guide to Uranometria 2000:

Irregular disk with traces of ring structure. Central star magnitude = 11.95.

Quote from Dreyer's New General Catalog (NGC):

Very faint, large, 4 stars in diffused nebula.

Planetary Nebulae: To learn more about them, click here.

NGC 246 (Other ID: PK 118-74.1)
Magnitude: 8.0 photographic; 10.9 visual
Constellation: Cetus
RA: 00h 47m 00.9s
Dec: -11° 52' 38" Epoch 2000
Size (min): 3.8
Classification: planetary nebula

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George Normandin, KAS

March 14th, 2001