12021+4303 Position and Visibility Tonight
Where is 12021+4303 right now?
12021+4303 is located in the constellation Ursa Major. It is currently below the horizon and is not visible from your location.
12021+4303 visibility on 2026-10-17
12021+4303 Visible from sunset until before midnight
12021+4303 rise and set timetable
| Time | Elevation | |
| 12021+4303 transit | 09:28 | 84° |
Moonrise, 25.9% illuminated  | 11:16 | 69° |
| Sunset | 16:27 | 15° |
| Civil sunset | 16:55 | 11° |
| Twilight start (−12°) | 17:25 | 7° |
| Astronomical observing session begins | 17:55 | 4° |
| 12021+4303 set | 18:29 | |
| Moonset | 20:29 | -9° |
| 12021+4303 rise | 00:24 | |
| Astronomical observing session ends | 03:51 | 29° |
| Twilight end (−12°) | 04:21 | 34° |
| Civil sunrise | 04:51 | 39° |
| Sunrise | 05:19 | 44° |
Track 12021+4303 position throughout the night
← 17 October 2026 →
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Star system description: 12021+4303
System 12021+4303 — 7-star system, is located in the constellation Ursa Major, at coordinates RA: 12h 02m 06s", Dec: 43° 02' 44s.
The primary and secondary magnitudes are 5.24 and 6.72. Their separation is 5.3 arcminutes, at position angle 51°. The magnitude difference is 1.48 magnitudes; the primary is approximately 3.9 times brighter.
The following technical data come from the Washington Double Star Catalog.
The primary and secondary magnitudes are 5.24 and 6.72. Their separation is 5.3 arcminutes, at position angle 51°. The magnitude difference is 1.48 magnitudes; the primary is approximately 3.9 times brighter.
The following technical data come from the Washington Double Star Catalog.
Technical details: 12021+4303
| Property | Value |
|---|---|
| System identifier | 12021+4303 |
| System type | 7-star system |
| Primary star | 67 UMa |
| Right ascension (RA) | 12.03522 (12h 02m 06s") |
| Declination (Dec) | 43.04564 (43° 02' 44s) |
| Primary magnitude | 5.24 |
| Secondary magnitude | 6.72 |
| Spectral type (primary/secondary) | A7m |
| Separation (arcseconds) | 315 |
| Position angle | 51° |
| Discovery year | 1897 |
| Last observed | 2015 |
| Primary proper motion (RA, Dec) | -327+072 |
| Secondary proper motion (RA, Dec) | -347-512 |
| Number of observations | 15 |
Components of 12021+4303
| Component | Magnitude | Separation (arcseconds) | Position angle |
| AB | 6.72 | 315 | 51 |
| AC | 8.47 | 369.3 | 19 |
| AD | 8.91 | 409.2 | 269 |
| BC | 8.47 | 194.8 | 321 |
| Da,Db | 12.32 | 0.6 | 86 |
| Da,Dc | 0 | 0.3 | 31 |
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for 12021+4303
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| Object name | 12021+4303 |
| Field of view | |
| Limiting magnitude | |
| 12021+4303 coordinates | 12.03522, 43.04564 |
| Center coordinates | 12.03522, 43.04564 |
12021+4303 Passage Through Night
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Current position of 12021+4303
| Time | 20:59 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -9° |
| Azimuth | 355° |
Here you can see the current position of 12021+4303 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.
When Is 12021+4303 Visible Throughout the Year?
12021+4303 will remain visible until August 16, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Sun, 18 October 2026 |
| Astronomical observing session begins | 17:54 |
| Astronomical observing session ends | 03:49 |
| Astronomical observing duration | 10h 55m |
| Rise | 00:24 |
| Set | 18:25 |
| Elevation at transit | 84° |
| Transit time | 09:24 |
| Equatorial coordinates | RA: 12h 02m 06s", Dec: 43° 02' 44s |
| Magnitude | 5 |
| Constellation | Ursa Major |
The graph illustrates the annual visibility pattern of 12021+4303, 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 see when 12021+4303 is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when 12021+4303 is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of 12021+4303
Coordinates and Visibility
| Right Ascension | 12h 02m 07s |
| Declination | 43° 02′ 44″ |
| Magnitude | 5.24 |
| Constellation | Ursa Major |
| Elevation | -9.4° |
| Azimuth | 355° |