Double Star 10084+1158 Observation Details
10084+1158 Daily Motion
10084+1158 will reach its transit before twilight, at 19:48. By the onset of twilight at 21:54, it will be at elevation, and it will set before sunrise, at 02:28.10084+1158 will be visible until June, 14, 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.
10084+1158 Visibility Timetable on May 20
10084+1158 Rise and Set Timetable
| Time | Elevation | |
| 10084+1158 transit | 19:48 | 62° |
| Sunset | 20:42 | 60° |
| Civil sunset | 21:15 | 56° |
| Astrosession begin | 22:37 | 43° |
| 10084+1158 set | 02:28 | |
| Moon Rise, 52.6% illuminated | 02:29 | -0° |
| Astrosession end | 04:19 | -19° |
| 10084+1158 rise | 13:05 | |
| Moon Set | 13:16 | 2° |
Track 10084+1158 Position Throughout the Night
← Tue, 20 May 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe 10084+1158 changing position in the night sky.
10084+1158 Star System Description
10084+1158 is 5-star Star System located in constellation Leo at coordinates RA: 10h 08m 22s", Dec: 11° 58' 01s.
The primary component has a magnitude of 1.40, while the secondary component has a magnitude of 8.24. They are separated by 2.8 arcminutes at a position angle of 307 degrees. The brightness difference between the two components is 6.84 magnitudes, with the primary component being approximately 544.5 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.
T: Statistically the same parallax within the errors and similar proper motion or other technique indicates that this pair is physical.
The primary component has a magnitude of 1.40, while the secondary component has a magnitude of 8.24. They are separated by 2.8 arcminutes at a position angle of 307 degrees. The brightness difference between the two components is 6.84 magnitudes, with the primary component being approximately 544.5 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 10084+1158
| Property | Value |
|---|---|
| Star System Identifier | 10084+1158 |
| System Type | 5-star Star System |
| Primary Star | alp Leo |
| Right Ascension (RA) | 10.13953 (10h 08m 22s") |
| Declination (Dec) | 11.96719 (11° 58' 01s) |
| Magnitude (Primary) | 1.40 |
| Magnitude (Secondary) | 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 |
10084+1158 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 8.24 | 168.3 | 307 |
| AD | 12.10 | 217.0 | 274 |
| BC | 13.2 | 4.0 | 89 |
| BD | 12.10 | 120.7 | 221 |
Notes
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 alp Leo
Double-click to unlock the map.
| 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
Double-click to unlock the map.
Current position of 10084+1158
| Time | 12:14 |
| Latitude | 39.9625 |
| Longitude | -83.0061 |
| 10084+1158 elevation | -10° |
| 10084+1158 Azimuth | -65° |
Here you can see the current position of the 10084+1158 on the map, as well as its positions for rise and set. This tool allows you to track the 10084+1158's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 10084+1158
| Date | Tue, 20 May 2025 |
| Twighlight start | 22:33 |
| Twighlight end | 04:14 |
| Twighlight duration | 6h 41m |
| Rise | 13:05 |
| Set | 02:24 |
| Elevation at transit | 62° |
| Transit time | 19:44 |
| Equatorial coordinates | RA: 10h 08m 22s", Dec: 11° 58' 01s |
| Magnitude | 1 |
| Constellation | Leo |
The graph illustrates the annual visibility pattern of a 10084+1158, 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 10084+1158 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 10084+1158 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.