Double Star 21069+3845 Observation Details
21069+3845 Daily Motion
21069+3845 will rise at 21:38, during twilight, and will ascend to 71° by the time twilight ends at 04:43.21069+3845 will be visible until January, 25, 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.
21069+3845 Visibility Timetable on May 21
21069+3845 Rise and Set Timetable
| Time | Elevation | |
| 21069+3845 rise | 21:38 | |
| Astrosession begin | 22:11 | 4° |
| Moon Rise, 41.7% illuminated | 02:31 | 46° |
| Astrosession end | 04:01 | 63° |
| Civil sunrise | 05:21 | 79° |
| Sunrise | 05:53 | 85° |
| 21069+3845 transit | 06:19 | 90° |
| Moon Set | 14:05 | 7° |
Track 21069+3845 Position Throughout the Night
← Wed, 21 May 2025 →
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Shift the map to change the time and observe 21069+3845 changing position in the night sky.
21069+3845 Star System Description
21069+3845 is 19-star Star System located in constellation Cygnus at coordinates RA: 21h 06m 53s", Dec: 38° 44' 57s.
The primary component has a magnitude of 5.35, while the secondary component has a magnitude of 6.10. They are separated by 19.6 arcseconds at a position angle of 35 degrees. The brightness difference between the two components is 0.75 magnitudes, with the primary component being approximately 2 times brighter than the secondary.
The primary and secondary stars are both orange in color
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 5.35, while the secondary component has a magnitude of 6.10. They are separated by 19.6 arcseconds at a position angle of 35 degrees. The brightness difference between the two components is 0.75 magnitudes, with the primary component being approximately 2 times brighter than the secondary.
The primary and secondary stars are both orange in color
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 21069+3845
| Property | Value |
|---|---|
| Star System Identifier | 21069+3845 |
| System Type | 19-star Star System |
| Primary Star | 61 Cyg |
| Right Ascension (RA) | 21.11497 (21h 06m 53s") |
| Declination (Dec) | 38.74942 (38° 44' 57s) |
| Magnitude (Primary) | 5.35 |
| Magnitude (Secondary) | 6.10 |
| Spectral Type (Primary/Secondary) | K5V+K7V (orange/orange) |
| Separation (Arcseconds) | 19.6 |
| Position Angle | 35° |
| Discovery Year | 1753 |
| Last Observed | 2023 |
| Primary Proper Motion (Ra, Dec) | +417+326 |
| Secondary Proper Motion (Ra, Dec) | +412+313 |
| Number of Observations | 1813 |
21069+3845 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 6.10 | 19.6 | 35 |
| AC | 10.23 | 306.1 | 196 |
| AD | 10.45 | 304.9 | 282 |
| AE | 9.63 | 306.0 | 12 |
| AF | 11.3 | 157.1 | 31 |
| AG | 11.30 | 241.2 | 48 |
| AH | 9.97 | 418.9 | 43 |
| AI | 10.74 | 480.4 | 52 |
| AJ | . | 23.1 | 276 |
| AK | . | 7.8 | 83 |
| AO | 12.65 | 121.3 | 319 |
| AP | 12.84 | 131.9 | 330 |
| AQ | 13.19 | 69.2 | 328 |
| BC | 10.03 | 192.9 | 176 |
| BL | . | 9.9 | 145 |
| BM | 14.3 | 86.0 | 248 |
| BN | 14.4 | 96.9 | 82 |
| BR | . | 11.5 | 77 |
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 61 Cyg
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| Object name | 21069+3845 |
| Field of view | |
| Limiting magnitude | |
| 21069+3845 coordinates | 21.11497, 38.74942 |
| Center coordinates | 21.11497, 38.74942 |
21069+3845 Passage Through Night
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Current position of 21069+3845
| Time | 08:43 |
| Latitude | 39.0469 |
| Longitude | -77.4903 |
| 21069+3845 elevation | 63° |
| 21069+3845 Azimuth | 79° |
Here you can see the current position of the 21069+3845 on the map, as well as its positions for rise and set. This tool allows you to track the 21069+3845's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 21069+3845
| Date | Wed, 21 May 2025 |
| Twighlight start | 22:07 |
| Twighlight end | 03:56 |
| Twighlight duration | 6h 49m |
| Rise | 21:38 |
| Set | 15:00 |
| Elevation at transit | 90° |
| Transit time | 06:19 |
| Equatorial coordinates | RA: 21h 06m 53s", Dec: 38° 44' 57s |
| Magnitude | 5 |
| Constellation | Cygnus |
The graph illustrates the annual visibility pattern of a 21069+3845, 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 21069+3845 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 21069+3845 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.