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Sky-Tonight.com / Double Stars / 21069+3845 Star System
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Observation Settings

Or select it on the map:
This Earth map fragment is intended to illustrate celestial motion across the sky, emphasizing both bearing and elevational perspectives. The map's center point corresponds to the transit, showcasing celestial objects at their highest point, while elevation gradually decreases towards the map edges. This dynamic representation offers insights into the changing positions of celestial bodies with a focus on their bearing and elevational trajectories.
Your location: Columbus, United States
Timezone:
Latitude:
39.9625
Longitude:
-83.0061

Double Star 21069+3845 Observation Details

21069+3845

21069+3845 Daily Motion

21069+3845 will rise at 21:57, during twilight, and will ascend to 70° by the time twilight ends at 05:02.
21069+3845 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.

21069+3845 Visibility Timetable on May 20

21069+3845 Rise and Set Timetable

TimeElevation
21069+3845 rise21:57
Astrosession begin22:375°
Moon Rise, 52.6% illuminated02:2942°
Astrosession end04:1962°
Civil sunrise05:4177°
Sunrise06:1384°
21069+3845 transit06:4589°
Moon Set13:1619°

Track 21069+3845 Position Throughout the Night

← Tue, 20 May 2025 →

Elevation (degrees)
Time
Altitude
Azimuth
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.

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

ComponentMagnitudeSeparation (arcseconds)Position Angle
AB6.1019.635
AC10.23306.1196
AD10.45304.9282
AE9.63306.012
AF11.3157.131
AG11.30241.248
AH9.97418.943
AI10.74480.452
AJ.23.1276
AK.7.883
AO12.65121.3319
AP12.84131.9330
AQ13.1969.2328
BC10.03192.9176
BL.9.9145
BM14.386.0248
BN14.496.982
BR.11.577

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 name21069+3845
Field of view
Limiting magnitude
21069+3845 coordinates21.11497, 38.74942
Center coordinates21.11497, 38.74942

21069+3845 Passage Through Night

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Current position of 21069+3845

Time11:42
Latitude39.9625
Longitude-83.0061
21069+3845 elevation35°
21069+3845 Azimuth66°
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

Time
DateTue, 20 May 2025
Twighlight start22:33
Twighlight end04:14
Twighlight duration6h 41m
Rise21:57
Set15:33
Elevation at transit89°
Transit time06:45
Equatorial coordinatesRA: 21h 06m 53s", Dec: 38° 44' 57s
Magnitude5
ConstellationCygnus
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.