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 | Cepheus |
| Magnitude | 12.3 |
| Size | 1.2' x 1.2' |
Number 1 in the Herschel 400 list is NGC 40. NGC 40 is a magnitude 12.3, planetary nebula in Cepheus. In an 18" telescope it appeared as a bright disk, slightly brighter at the edges, with a fairly bright central star.