Combination of 5, 3 minute images unfiltered.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.
| Object Type | Galaxy E6 |
| Constellation | Cetus |
| Magnitude | 10.5 |
| Size | 4.1' x 2.0' |
Number 20 in the Herschel 400 list is NGC 584. NGC 584 is a moderately large and bright elliptical galaxy in Cetus. In an 18 inch telescope it appears as an elongated patch of light with a bright centre. The two bright galaxies either side of NGC 584 are the 13.2 magnitude NGC 582; (left) and the 15.2 magnitude PGC 1028168. (right). While NGC 582 was an easy object in the 18 inch, the PGC galaxy was not seen with certainty.