Combination of 15, 1 minute images unfiltered.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.
| Object Type | Open Cluster |
| Constellation | Gemini |
| Magnitude | 10.0 |
| Size | 3.0' x 3.0' |
Number 85 in the Herschel 400 list is NGC 2304 in Gemini. NGC 2304 is a small, faint cluster of faint stars almost lost in the background Milky Way.