Planetary nebula
Eskimo Nebula (NGC2392)
In Gemini (Gem) • Magnitude 10.1 • 0.8 arcminutes
Open the free AstroPlanner with Eskimo Nebula pre-selected, scored against your telescope, location, and the live cloud forecast.
Bright planetary nebula in Gemini with a face-like profile.
Eskimo Nebula at a glance
| Catalog IDs | N 2392, C 39 |
| Type | Planetary nebula |
| Constellation | Gemini (Gem) |
| Right ascension | 07h 29m 13s |
| Declination | +20° 54' 36" |
| Apparent magnitude | 10.10 |
| Surface brightness | 12.5 mag/arcsec² |
| Angular size | 0.8 × 0.8 arcmin |
| Max altitude at 45°N | 66° |
| Best imaging months | Dec, Jan, Feb, Mar |
How to image Eskimo Nebula
Eskimo Nebula sits in the constellation Gemini at right ascension 07h 29m 13s and declination +20° 54' 36". 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. As a planetary nebula, Eskimo Nebula typically appears small and intense, so a long focal length and OIII or Ha narrowband filters bring out structure.