NGC3991 Position and Visibility Tonight
Where is NGC3991 right now?
NGC3991 is located in the constellation Ursa Major. It is currently below the horizon and is not visible from your location.
NGC3991 visibility on 2026-08-24
NGC3991 Visible from sunset until early morning
NGC3991 rise and set timetable
| Time | Elevation | |
| NGC3991 transit | 12:56 | 85° |
Moonrise, 83.8% illuminated  | 15:29 | 58° |
| Sunset | 17:47 | 31° |
| Civil sunset | 18:16 | 26° |
| Twilight start | 18:48 | 20° |
| Astronomical observing session begins | 19:22 | 14° |
| NGC3991 set | 20:50 | |
| Moonset | 00:52 | -20° |
| Astronomical observing session ends | 02:58 | -15° |
| NGC3991 rise | 04:58 |
Track NGC3991 Position Throughout the Night
← 24 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe NGC3991 changing position in the night sky.
Finder Chart for NGC3991
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| Object name | NGC3991 |
| Field of view | |
| Limiting magnitude | |
| NGC3991 coordinates | 11.95863, 32.33778 |
| Center coordinates | 11.95863, 32.33778 |
NGC3991 Passage Through Night
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Current position of NGC3991
| Time | 21:09 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -3° |
| Azimuth | 315° |
Here you can see the current position of NGC3991 on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.
Annual motion of NGC3991
NGC3991 will become visible again around October 17 after moving far enough from the Sun.
| Date | Tue, 25 August 2026 |
| Twilight start | 19:20 |
| Twilight end | 02:56 |
| Twilight duration | 8h 36m |
| Rise | 04:58 |
| Set | 20:46 |
| Elevation at transit | 85° |
| Transit time | 12:52 |
| Equatorial coordinates | RA: 11h 57m 31s", Dec: 32° 20' 16s |
| Magnitude | - |
| Constellation | Ursa Major |
The graph illustrates the annual visibility pattern of NGC3991, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also view detailed visibility information in a table with exact rise, transit, and set times for each date.
You can also view detailed visibility information in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of NGC3991
Coordinates and Visibility
| Right Ascension | 11.95863° |
| Declination | 32.33778° |
| Magnitude | |
| Constellation | Ursa Major |
| Elevation | -2.7° |
| Azimuth | 315.3° |
Data Credits
The deep-sky information on this page comes from the OpenNGC project developed by Matteo Verga. OpenNGC provides detailed catalog data for nebulae, galaxies, clusters and other deep-sky objects.
For details or contributions, visit the official repository: OpenNGC GitHub.