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 | 8.3 |
| Size | 6.0' x 6.0' |
Number 101 in the Herschel 400 list is NGC 2420. This is a rather small open cluster in Gemini, consisting mostly of fairly faint stars.