10084+1158 Position and Visibility Tonight
Where is 10084+1158 right now?
10084+1158 is located in the constellation Leo. It is currently below the horizon and is not visible from your location.
10084+1158 visibility on 2026-10-07
10084+1158 Visible from early morning until sunrise
10084+1158 rise and set timetable
| Time | Elevation | |
Moonrise, 23.7% illuminated  | 00:50 | -9° |
| 10084+1158 transit | 08:14 | 65° |
| Moonset | 14:44 | 1° |
| 10084+1158 set | 14:50 | |
| Astronomical observing session begins | 18:09 | -33° |
| 10084+1158 rise | 01:34 | |
| Astronomical observing session ends | 03:42 | 25° |
| Twilight end (−12°) | 04:12 | 31° |
| Civil sunrise | 04:42 | 37° |
| Sunrise | 05:10 | 42° |
Track 10084+1158 position throughout the night
← 7 October 2026 →
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Star system description: 10084+1158
System 10084+1158 — 5-star system, is located in the constellation Leo, at coordinates RA: 10h 08m 22s", Dec: 11° 58' 01s.
The primary and secondary magnitudes are 1.40 and 8.24. Their separation is 2.8 arcminutes, at position angle 307°. The magnitude difference is 6.84 magnitudes; the primary is approximately 544.5 times brighter.
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 1.40 and 8.24. Their separation is 2.8 arcminutes, at position angle 307°. The magnitude difference is 6.84 magnitudes; the primary is approximately 544.5 times brighter.
The following technical data come from the Washington Double Star Catalog.
Technical details: 10084+1158
| Property | Value |
|---|---|
| System identifier | 10084+1158 |
| System type | 5-star system |
| Primary star | alp Leo |
| Right ascension (RA) | 10.13953 (10h 08m 22s") |
| Declination (Dec) | 11.96719 (11° 58' 01s) |
| Primary magnitude | 1.40 |
| Secondary magnitude | 8.24 |
| Spectral type (primary/secondary) | B7V |
| Separation (arcseconds) | 168.3 |
| Position angle | 307° |
| Discovery year | 1779 |
| Last observed | 2023 |
| Primary proper motion (RA, Dec) | -249+006 |
| Secondary proper motion (RA, Dec) | -254+008 |
| Number of observations | 69 |
Components of 10084+1158
| Component | Magnitude | Separation (arcseconds) | Position angle |
| AB | 8.24 | 168.3 | 307 |
| AD | 12.1 | 217 | 274 |
| BC | 13.2 | 4 | 89 |
| BD | 12.1 | 120.7 | 221 |
Notes
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for 10084+1158
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| Object name | 10084+1158 |
| Field of view | |
| Limiting magnitude | |
| 10084+1158 coordinates | 10.13953, 11.96719 |
| Center coordinates | 10.13953, 11.96719 |
10084+1158 Passage Through Night
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Current position of 10084+1158
| Time | 22:32 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -31° |
| Azimuth | 41° |
Here you can see the current position of 10084+1158 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 10084+1158 Visible Throughout the Year?
10084+1158 will remain visible until June 18, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Thu, 8 October 2026 |
| Astronomical observing session begins | 18:08 |
| Astronomical observing session ends | 03:40 |
| Astronomical observing duration | 10h 32m |
| Rise | 01:30 |
| Set | 14:42 |
| Elevation at transit | 65° |
| Transit time | 08:06 |
| Equatorial coordinates | RA: 10h 08m 22s", Dec: 11° 58' 01s |
| Magnitude | 1 |
| Constellation | Leo |
The graph illustrates the annual visibility pattern of 10084+1158, 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 10084+1158 is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when 10084+1158 is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of 10084+1158
Coordinates and Visibility
| Right Ascension | 10h 08m 22s |
| Declination | 11° 58′ 02″ |
| Magnitude | 1.4 |
| Constellation | Leo |
| Elevation | -30.7° |
| Azimuth | 40.8° |