Double Star 21441+2845 Position and Visibility Tonight
Where is 21441+2845 right now?
21441+2845 is located in the constellation Cygnus. Although it is currently above the horizon at an altitude of 43 degrees, 21441+2845 is not visible because it is daytime.
Twilight begins at 19:25 local time, and at that moment, 21441+2845 will appear at an altitude of 27 degrees toward the northeast.
Twilight begins at 19:25 local time, and at that moment, 21441+2845 will appear at an altitude of 27 degrees toward the northeast.
21441+2845 Visibility on July 27
21441+2845 is visible all night until sunrise
21441+2845 Rise and Set Timetable
| Time | Elevation | |
Moon Rise, 93.7% illuminated  | 16:49 | -1° |
| 21441+2845 rise | 16:53 | |
| Sunset | 18:19 | 15° |
| Civil sunset | 18:50 | 20° |
| Twighlight start | 19:25 | 27° |
| Astrosession begin | 20:04 | 34° |
| 21441+2845 transit | 00:31 | 81° |
| Moon Set | 02:03 | 69° |
| Astrosession end | 02:24 | 65° |
| Twighlight end | 03:03 | 57° |
| Civil sunrise | 03:39 | 50° |
| Sunrise | 04:09 | 44° |
| 21441+2845 set | 08:09 |
Track 21441+2845 Position Throughout the Night
← Mon, 27 July 2026 →
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Shift the map to change the time and observe 21441+2845 changing position in the night sky.
21441+2845 Star System Description
21441+2845 is 9-star Star System located in constellation Cygnus at coordinates RA: 21h 44m 08s", Dec: 28° 44' 33s.
The primary component has a magnitude of 4.75, while the secondary component has a magnitude of 6.18. They are separated by 5.7 arcseconds at a position angle of 113 degrees. The brightness difference between the two components is 1.43 magnitudes, with the primary component being approximately 3.7 times brighter than the secondary.
The primary star is yellow-white in color, and the secondary star is yellow.
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 4.75, while the secondary component has a magnitude of 6.18. They are separated by 5.7 arcseconds at a position angle of 113 degrees. The brightness difference between the two components is 1.43 magnitudes, with the primary component being approximately 3.7 times brighter than the secondary.
The primary star is yellow-white in color, and the secondary star is yellow.
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 21441+2845
| Property | Value |
|---|---|
| Star System Identifier | 21441+2845 |
| System Type | 9-star Star System |
| Primary Star | mu Cyg |
| Right Ascension (RA) | 21.73569 (21h 44m 08s") |
| Declination (Dec) | 28.74261 (28° 44' 33s) |
| Magnitude (Primary) | 4.75 |
| Magnitude (Secondary) | 6.18 |
| Spectral Type (Primary/Secondary) | F6V+G2V (yellow-white/yellow) |
| Separation (Arcseconds) | 5.7 |
| Position Angle | 113° |
| Discovery Year | 1823 |
| Last Observed | 2022 |
| Primary Proper Motion (Ra, Dec) | +260-243 |
| Secondary Proper Motion (Ra, Dec) | +260-243 |
| Number of Observations | 735 |
21441+2845 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 6.18 | 5.7 | 113 |
| AC | 12.93 | 35.3 | 263 |
| AD | 6.94 | 216.5 | 62 |
| AF | 12.64 | 113.7 | 73 |
| AG | 13.77 | 170.3 | 73 |
| BD | 6.94 | 213.9 | 60 |
| DE | 13.13 | 14.3 | 270 |
| DG | 13.77 | 93.5 | 166 |
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 mu Cyg
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| Object name | 21441+2845 |
| Field of view | |
| Limiting magnitude | |
| 21441+2845 coordinates | 21.73569, 28.74261 |
| Center coordinates | 21.73569, 28.74261 |
21441+2845 Passage Through Night
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Current position of 21441+2845
| Time | 04:18 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 21441+2845 elevation | 43° |
| 21441+2845 Azimuth | 277° |
Here you can see the current position of the 21441+2845 on the map, as well as its positions for rise and set. This tool allows you to track the 21441+2845's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 21441+2845
21441+2845 will be visible until January, 26, 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.
| Date | Mon, 27 July 2026 |
| Twighlight start | 20:00 |
| Twighlight end | 02:17 |
| Twighlight duration | 6h 17m |
| Rise | 16:53 |
| Set | 08:09 |
| Elevation at transit | 81° |
| Transit time | 00:31 |
| Equatorial coordinates | RA: 21h 44m 08s", Dec: 28° 44' 33s |
| Magnitude | 5 |
| Constellation | Cygnus |
The graph illustrates the annual visibility pattern of a 21441+2845, 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 21441+2845 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
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 21441+2845 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of 21441+2845
Coordinates & Visibility
| Right Ascension | 21.73569° |
| Declination | 28.74261° |
| Magnitude | 4.75 |
| Constellation | Cygnus |
| Elevation | 43.1° |
| Azimuth | 276.6° |