Galaxy
NGC 7331 (NGC7331)
In Pegasus (Peg) • Magnitude 9.5 • 11 arcminutes
Open the free AstroPlanner with NGC 7331 pre-selected, scored against your telescope, location, and the live cloud forecast.
Spiral galaxy in Pegasus, similar in form to M31, with the Deer Lick group nearby.
NGC 7331 at a glance
| Catalog IDs | N 7331, C 30 |
| Type | Galaxy |
| Constellation | Pegasus (Peg) |
| Right ascension | 22h 37m 05s |
| Declination | +34° 25' 12" |
| Apparent magnitude | 9.50 |
| Surface brightness | 13.6 mag/arcsec² |
| Angular size | 10.5 × 3.7 arcmin |
| Max altitude at 45°N | 79° |
| Best imaging months | Aug, Sep, Oct, Nov |
How to image NGC 7331
NGC 7331 sits in the constellation Pegasus at right ascension 22h 37m 05s and declination +34° 25' 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. As a galaxy, NGC 7331 needs the darkest skies you can find: surface brightness, not just apparent magnitude, drives whether it will lift out of the gradient.