Double Star 12289+2555 Observation Details
12289+2555 Daily Motion
12289+2555 will rise before twilight begins, at 14:11, and will reach 77° elevation by the time twilight commences at 21:29. It will reach its transit at 77° by 21:43 and gradually fade away as the night ends at 04:43, maintaining an elevation of around 5°.12289+2555 will be visible until August, 8, 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.
12289+2555 Visibility Timetable on May 21
12289+2555 Rise and Set Timetable
| Time | Elevation | |
| 12289+2555 rise | 14:11 | |
| Sunset | 20:19 | 68° |
| Civil sunset | 20:51 | 73° |
| 12289+2555 transit | 21:43 | 77° |
| Astrosession begin | 22:11 | 76° |
| Moon Rise, 41.7% illuminated | 02:31 | 29° |
| Astrosession end | 04:01 | 13° |
| 12289+2555 set | 05:14 | |
| Moon Set | 14:05 | -0° |
Track 12289+2555 Position Throughout the Night
← Wed, 21 May 2025 →
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Shift the map to change the time and observe 12289+2555 changing position in the night sky.
12289+2555 Star System Description
12289+2555 is 7-star Star System located in constellation Coma Berenices at coordinates RA: 12h 28m 54s", Dec: 25° 54' 46s.
The primary component has a magnitude of 5.23, while the secondary component has a magnitude of 6.64. They are separated by 2.4 arcminutes at a position angle of 251 degrees. The brightness difference between the two components is 1.41 magnitudes, with the primary component being approximately 3.7 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 5.23, while the secondary component has a magnitude of 6.64. They are separated by 2.4 arcminutes at a position angle of 251 degrees. The brightness difference between the two components is 1.41 magnitudes, with the primary component being approximately 3.7 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 12289+2555
| Property | Value |
|---|---|
| Star System Identifier | 12289+2555 |
| System Type | 7-star Star System |
| Primary Star | AI Com |
| Right Ascension (RA) | 12.48186 (12h 28m 54s") |
| Declination (Dec) | 25.91289 (25° 54' 46s) |
| Magnitude (Primary) | 5.23 |
| Magnitude (Secondary) | 6.64 |
| Spectral Type (Primary/Secondary) | A0p |
| Separation (Arcseconds) | 145.3 |
| Position Angle | 251° |
| Discovery Year | 1836 |
| Last Observed | 2018 |
| Primary Proper Motion (Ra, Dec) | -022-016 |
| Secondary Proper Motion (Ra, Dec) | -020-016 |
| Number of Observations | 49 |
12289+2555 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 6.64 | 145.3 | 251 |
| AD | 11.63 | 326.0 | 270 |
| AE | 13.60 | 446.7 | 270 |
| AF | 13.92 | 126.0 | 145 |
| BC | 13.7 | 1.8 | 157 |
| BD | 11.63 | 194.4 | 285 |
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 AI Com
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| Object name | 12289+2555 |
| Field of view | |
| Limiting magnitude | |
| 12289+2555 coordinates | 12.48186, 25.91289 |
| Center coordinates | 12.48186, 25.91289 |
12289+2555 Passage Through Night
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Current position of 12289+2555
| Time | 09:44 |
| Latitude | 39.0469 |
| Longitude | -77.4903 |
| 12289+2555 elevation | -25° |
| 12289+2555 Azimuth | 0° |
Here you can see the current position of the 12289+2555 on the map, as well as its positions for rise and set. This tool allows you to track the 12289+2555's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 12289+2555
| Date | Wed, 21 May 2025 |
| Twighlight start | 22:07 |
| Twighlight end | 03:56 |
| Twighlight duration | 6h 49m |
| Rise | 14:07 |
| Set | 05:10 |
| Elevation at transit | 77° |
| Transit time | 21:39 |
| Equatorial coordinates | RA: 12h 28m 54s", Dec: 25° 54' 46s |
| Magnitude | 5 |
| Constellation | Coma Berenices |
The graph illustrates the annual visibility pattern of a 12289+2555, 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 12289+2555 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 12289+2555 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.