Open cluster
37 Cluster (NGC2169)
In Orion (Ori) • Magnitude 5.9 • 7.2 arcminutes
Open the free AstroPlanner with 37 Cluster pre-selected, scored against your telescope, location, and the live cloud forecast.
A small open cluster in Orion resembling the number 37.
37 Cluster at a glance
| Catalog IDs | N 2169 |
| Type | Open cluster |
| Constellation | Orion (Ori) |
| Right ascension | 06h 08m 24s |
| Declination | +13° 57' 54" |
| Apparent magnitude | 5.90 |
| Angular size | 7.2 × 7.2 arcmin |
| Max altitude at 45°N | 59° |
| Best imaging months | Dec, Jan, Feb |
How to image 37 Cluster
37 Cluster sits in the constellation Orion at right ascension 06h 08m 24s and declination +13° 57' 54". To frame and integrate it well, AstroPlanner will compute the optimal moonless window for tonight from your location, the field-of-view fit against your sensor and focal length, the suggested total integration time given your aperture and sky Bortle class, and a cloud-aware schedule that drops it from the plan if your nearest cloud forecast spike overlaps the best altitude window.