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 | 8.6 |
| Size | 5.0' x 5.0' |
Number 70 in the Herschel 400 list is NGC 2158, is a moderately bright and compact cluster of stars in Gemini, visible in the same low-magnification field as the much larger and brighter open cluster, M35.