Double Star 11279+0251 Observation Details
11279+0251 Daily Motion
11279+0251 will be visible until June, 30, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
11279+0251 Visibility Timetable on October 31
11279+0251 Rise and Set Timetable
| Time | Elevation | |
| 11279+0251 transit | 07:58 | 56° |
| Moon Rise, 62.8% illuminated | 13:02 | 13° |
| 11279+0251 set | 14:06 | |
| Astrosession begin | 17:39 | -39° |
| Moon Set | 23:50 | -23° |
| 11279+0251 rise | 01:47 | |
| Astrosession end | 04:03 | 27° |
| Civil sunrise | 05:04 | 38° |
| Sunrise | 05:33 | 43° |
Track 11279+0251 Position Throughout the Night
← Fri, 31 October 2025 →
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Shift the map to change the time and observe 11279+0251 changing position in the night sky.
Where is 11279+0251 right now?
11279+0251 is located in the constellation Leo, at right ascension 11h 27m 56s" and declination 02° 51' 22s. Although it is currently above the horizon at an altitude of 46 degrees, 11279+0251 is not visible because it is daytime.11279+0251 Star System Description
11279+0251 is 6-star Star System located in constellation Leo at coordinates RA: 11h 27m 56s", Dec: 02° 51' 22s.
The primary component has a magnitude of 5.05, while the secondary component has a magnitude of 7.47. They are separated by 1.4 arcminute at a position angle of 164 degrees. The brightness difference between the two components is 2.42 magnitudes, with the primary component being approximately 9.3 times brighter than the secondary.
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.
The primary component has a magnitude of 5.05, while the secondary component has a magnitude of 7.47. They are separated by 1.4 arcminute at a position angle of 164 degrees. The brightness difference between the two components is 2.42 magnitudes, with the primary component being approximately 9.3 times brighter than the secondary.
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.
Technical Details of Star System 11279+0251
| Property | Value |
|---|---|
| Star System Identifier | 11279+0251 |
| System Type | 6-star Star System |
| Primary Star | tau Leo |
| Right Ascension (RA) | 11.46561 (11h 27m 56s") |
| Declination (Dec) | 2.85625 (02° 51' 22s) |
| Magnitude (Primary) | 5.05 |
| Magnitude (Secondary) | 7.47 |
| Spectral Type (Primary/Secondary) | G8II-III |
| Separation (Arcseconds) | 82.7 |
| Position Angle | 164° |
| Discovery Year | 1780 |
| Last Observed | 2019 |
| Primary Proper Motion (Ra, Dec) | +016-010 |
| Secondary Proper Motion (Ra, Dec) | -090+017 |
| Number of Observations | 77 |
11279+0251 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 7.47 | 82.7 | 164 |
| AD | 9.51 | 766.5 | 92 |
| BC | 14.48 | 106.5 | 234 |
| BD | 9.51 | 755.2 | 85 |
| CE | 14.22 | 8.7 | 198 |
The data presented in this table is sourced from the Washington Double Star (WDS) Catalog, a comprehensive repository of double and multiple star system information maintained by the U.S. Naval Observatory. We thank the WDS team for their continued efforts in providing accurate and detailed astronomical data.
Finder Chart for tau Leo
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| Object name | 11279+0251 |
| Field of view | |
| Limiting magnitude | |
| 11279+0251 coordinates | 11.46561, 2.85625 |
| Center coordinates | 11.46561, 2.85625 |
11279+0251 Passage Through Night
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Current position of 11279+0251
| Time | 05:58 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 11279+0251 elevation | 46° |
| 11279+0251 Azimuth | -134° |
Here you can see the current position of the 11279+0251 on the map, as well as its positions for rise and set. This tool allows you to track the 11279+0251's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 11279+0251
| Date | Fri, 31 October 2025 |
| Twighlight start | 17:35 |
| Twighlight end | 03:57 |
| Twighlight duration | 10h 22m |
| Rise | 01:47 |
| Set | 14:02 |
| Elevation at transit | 56° |
| Transit time | 07:54 |
| Equatorial coordinates | RA: 11h 27m 56s", Dec: 02° 51' 22s |
| Magnitude | 5 |
| Constellation | Leo |
The graph illustrates the annual visibility pattern of a 11279+0251, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the 11279+0251 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the 11279+0251 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
Astrometric & Physical Parameters of 11279+0251
Coordinates & Visibility
| Right Ascension | 11.46561° |
| Declination | 2.85625° |
| Magnitude | 5.05 |
| Constellation | Leo |
| Elevation | 45.8° |
| Azimuth | -134.1° |