Open cluster
Embryo Nebula (NGC1333)
In Perseus (Per) • Magnitude 10.6 • 20 arcminutes
Open the free AstroPlanner with Embryo Nebula pre-selected, scored against your telescope, location, and the live cloud forecast.
A young, active star-forming reflection nebula in Perseus.
Embryo Nebula at a glance
| Catalog IDs | N 1333 |
| Type | Open cluster |
| Constellation | Perseus (Per) |
| Right ascension | 03h 28m 55s |
| Declination | +31° 22' 12" |
| Apparent magnitude | 10.60 |
| Angular size | 19.5 × 19.5 arcmin |
| Max altitude at 45°N | 76° |
| Best imaging months | Oct, Nov, Dec, Jan |
How to image Embryo Nebula
Embryo Nebula sits in the constellation Perseus at right ascension 03h 28m 55s and declination +31° 22' 12". 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.