Galaxy
NGC 3198 (NGC3198)
In Ursa Major (UMa) • Magnitude 10.4 • 6.5 arcminutes
Open the free AstroPlanner with NGC 3198 pre-selected, scored against your telescope, location, and the live cloud forecast.
Barred spiral galaxy in Ursa Major.
NGC 3198 at a glance
| Catalog IDs | N 3198 |
| Type | Galaxy |
| Constellation | Ursa Major (UMa) |
| Right ascension | 10h 19m 55s |
| Declination | +45° 32' 59" |
| Apparent magnitude | 10.40 |
| Surface brightness | 22.7 mag/arcsec² |
| Angular size | 6.5 × 1.8 arcmin |
| Max altitude at 45°N | 89° |
| Best imaging months | Feb, Mar, Apr, May |
How to image NGC 3198
NGC 3198 sits in the constellation Ursa Major at right ascension 10h 19m 55s and declination +45° 32' 59". 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 3198 needs the darkest skies you can find: surface brightness, not just apparent magnitude, drives whether it will lift out of the gradient.