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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 lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

21069+3845 Position and Visibility Tonight

21069+3845

Where is 21069+3845 right now?

21069+3845 is located in the constellation Cygnus. It is currently above the horizon at an altitude of 61° toward the north-east, with an apparent magnitude of 5.35.
Twilight begins at 19:17 local time. At that moment, 21069+3845 will be 61° above the horizon toward the north-east.

21069+3845 visibility on 2026-08-29

21069+3845 Visible from sunset until sunrise

21069+3845 rise and set timetable

TimeElevation
21069+3845 rise13:15
Sunset17:4043°
Moonrise, 99.3% illuminated 17:5946°
Civil sunset18:0948°
Twilight start18:4054°
Astronomical observing session begins19:1460°
21069+3845 transit21:4489°
Astronomical observing session ends03:0329°
Twilight end03:3723°
Civil sunrise04:0918°
Sunrise04:3714°
Moonset06:110°
21069+3845 set06:14

Track 21069+3845 Position Throughout the Night

← 29 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 21069+3845 changing position in the night sky.

Star system description: 21069+3845

System 21069+3845 — 19-star system, is located in the constellation Cygnus, at coordinates RA: 21h 06m 53s", Dec: 38° 44' 57s.
The primary and secondary magnitudes are 5.35 and 6.10. Their separation is 19.6 arcseconds, at position angle 35°. The magnitude difference is 0.75 magnitudes; the primary is approximately 2 times brighter.
Both components are orange.
The following technical data come from the Washington Double Star Catalog.

Technical details: 21069+3845

Property Value
System identifier 21069+3845
System type 19-star system
Primary star 61 Cyg
Right ascension (RA) 21.11497 (21h 06m 53s")
Declination (Dec) 38.74942 (38° 44' 57s)
Primary magnitude 5.35
Secondary magnitude 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

Components of 21069+3845

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

Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.

Finder Chart for 61 Cyg

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Object name61 Cyg
Field of view
Limiting magnitude
61 Cyg coordinates21.11497, 38.74942
Center coordinates21.11497, 38.74942

21069+3845 Passage Through Night

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Current position of 21069+3845

Time19:17
Latitude37.3541
Longitude-121.955
Elevation61°
Azimuth76°
Here you can see the current position of 21069+3845 on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

Annual motion of 21069+3845


21069+3845 will remain visible until January 24, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateSun, 30 August 2026
Twilight start19:12
Twilight end03:02
Twilight duration8h 50m
Rise13:11
Set06:10
Elevation at transit89°
Transit time21:40
Equatorial coordinatesRA: 21h 06m 53s", Dec: 38° 44' 57s
Magnitude5
ConstellationCygnus
The graph illustrates the annual visibility pattern of 21069+3845, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also view detailed visibility information in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of 21069+3845

Coordinates and Visibility

Right Ascension21.11497°
Declination38.74942°
Magnitude5.35
ConstellationCygnus
Elevation61.1°
Azimuth75.7°