Combination of 5, 3 minute images unfiltered.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.
| Object Type | Planetary Nebula |
| Constellation | Cetus |
| Magnitude | 8.0 |
| Size | 4.1' x 4.0' |
Number 8 in the Herschel 400 list is NGC 246. NGC 246 is a moderately large and bright planetary nebula in Cetus. In an 18 inch telescope it appears as a ghostly disc, slightly fainter in the centre, with several stars superimposed.