09315+6304 Position and Visibility Tonight
Where is 09315+6304 right now?
09315+6304 is located in the constellation Ursa Major. Although 09315+6304 is currently 41° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:24 local time. At that moment, 09315+6304 will be 17° above the horizon toward the north-west.
Twilight begins at 18:24 local time. At that moment, 09315+6304 will be 17° above the horizon toward the north-west.
09315+6304 visibility on 2026-09-08
09315+6304 Visible all night
09315+6304 rise and set timetable
| Time | Elevation | |
| 09315+6304 is always above the horizon | ||
Moonrise, 21% illuminated  | 00:35 | 17° |
| 09315+6304 transit | 09:31 | 64° |
| Moonset | 15:38 | 32° |
| Sunset | 17:26 | 22° |
| Civil sunset | 17:53 | 19° |
| Twilight start | 18:24 | 17° |
| Astronomical observing session begins | 18:56 | 15° |
| 09315+6304 is always above the horizon | ||
| Astronomical observing session ends | 03:14 | 31° |
| Twilight end | 03:46 | 35° |
| Civil sunrise | 04:17 | 38° |
| Sunrise | 04:45 | 41° |
Track 09315+6304 Position Throughout the Night
← 8 September 2026 →
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Star system description: 09315+6304
System 09315+6304 — triple star system, is located in the constellation Ursa Major, at coordinates RA: 09h 31m 31s", Dec: 63° 03' 42s.
The primary and secondary magnitudes are 3.65 and 9.19. Their separation is 19.2 arcseconds, at position angle 273°. The magnitude difference is 5.54 magnitudes; the primary is approximately 164.4 times brighter.
The primary is yellow-white; the secondary is orange.
The following technical data come from the Washington Double Star Catalog.
T: Matching parallax and similar proper motion indicate a physical pair.
The primary and secondary magnitudes are 3.65 and 9.19. Their separation is 19.2 arcseconds, at position angle 273°. The magnitude difference is 5.54 magnitudes; the primary is approximately 164.4 times brighter.
The primary is yellow-white; the secondary is orange.
The following technical data come from the Washington Double Star Catalog.
Technical details: 09315+6304
| Property | Value |
|---|---|
| System identifier | 09315+6304 |
| System type | triple star system |
| Primary star | 23 UMa |
| Right ascension (RA) | 9.52542 (09h 31m 31s") |
| Declination (Dec) | 63.06181 (63° 03' 42s) |
| Primary magnitude | 3.65 |
| Secondary magnitude | 9.19 |
| Spectral type (primary/secondary) | F0IV+K5V (yellow-white/orange) |
| Separation (arcseconds) | 19.2 |
| Position angle | 273° |
| Discovery year | 1781 |
| Last observed | 2016 |
| Primary proper motion (RA, Dec) | +108+027 |
| Secondary proper motion (RA, Dec) | +109+014 |
| Number of observations | 56 |
Components of 09315+6304
| Component | Magnitude | Separation (arcseconds) | Position angle |
| AB | 9.19 | 19.2 | 273 |
| AC | 11.75 | 90.7 | 227 |
Notes
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for 23 UMa
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| Object name | 23 UMa |
| Field of view | |
| Limiting magnitude | |
| 23 UMa coordinates | 9.52542, 63.06181 |
| Center coordinates | 9.52542, 63.06181 |
09315+6304 Passage Through Night
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Current position of 09315+6304
| Time | 14:17 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | 41° |
| Azimuth | 325° |
Here you can see the current position of 09315+6304 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 09315+6304 Visible Throughout the Year?
09315+6304 will remain visible until July 15, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Tue, 8 September 2026 |
| Twilight start | 18:52 |
| Twilight end | 03:08 |
| Twilight duration | 8h 16m |
| Rise | 09315+6304 is always up |
| Set | 09315+6304 is always up |
| Elevation at transit | 64° |
| Transit time | 09:28 |
| Equatorial coordinates | RA: 09h 31m 31s", Dec: 63° 03' 42s |
| Magnitude | 4 |
| Constellation | Ursa Major |
The graph illustrates the annual visibility pattern of 09315+6304, 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 09315+6304 is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when 09315+6304 is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of 09315+6304
Coordinates and Visibility
| Right Ascension | 09h 31m 32s |
| Declination | 63° 03′ 43″ |
| Magnitude | 3.65 |
| Constellation | Ursa Major |
| Elevation | 40.9° |
| Azimuth | 325.3° |