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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 20155+4743 Observation Details

20155+4743

20155+4743 Daily Motion


20155+4743 will be visible throughout the entire year. However, it will change its position significantly, moving 85 degrees over time. You can find the best times to observe 20155+4743, when it reaches its highest elevation, in the annual motion section.

20155+4743 Visibility Timetable on August 26

20155+4743 Rise and Set Timetable

TimeElevation
Moon Rise, 5.4% illuminated09:093°
Sunset20:1254°
Civil sunset20:4159°
Moon Set21:1966°
Astrosession begin21:5171°
20155+4743 transit23:2882°
Astrosession end05:1730°
Civil sunrise06:2620°
Sunrise06:5516°
20155+4743 set09:55
20155+4743 rise12:58

Track 20155+4743 Position Throughout the Night

← Tue, 26 August 2025 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 20155+4743 changing position in the night sky.

Where is 20155+4743 right now?

20155+4743 is located in the constellation Cygnus, at right ascension 20h 15m 28s" and declination 47° 42' 51s. At the current time, it is above the horizon at an altitude of 64 degrees toward the west-northwest from your location, with an apparent magnitude of 4.16.

20155+4743 Star System Description

20155+4743 is Double Star System located in constellation Cygnus at coordinates RA: 20h 15m 28s", Dec: 47° 42' 51s.
The primary component has a magnitude of 4.16, while the secondary component has a magnitude of 8.36. They are separated by 3.5 arcminutes at a position angle of 175 degrees. The brightness difference between the two components is 4.2 magnitudes, with the primary component being approximately 47.9 times brighter than the secondary.
The primary star is orange in color, and the secondary star is blue-white.
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 20155+4743

Property Value
Star System Identifier 20155+4743
System Type Double Star System
Primary Star 32 Cyg
Right Ascension (RA) 20.25786 (20h 15m 28s")
Declination (Dec) 47.71422 (47° 42' 51s)
Magnitude (Primary) 4.16
Magnitude (Secondary) 8.36
Spectral Type (Primary/Secondary) K7Ib+B6V (orange/blue-white)
Separation (Arcseconds) 208.9
Position Angle 175°
Discovery Year 1824
Last Observed 2015
Primary Proper Motion (Ra, Dec) +000-002
Secondary Proper Motion (Ra, Dec) +004+005
Number of Observations 13

Notes

  • S: Statistically different parallax and proper motion indicates that this pair is non-physical.
  • 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 32 Cyg

    Double-click to unlock the map.
    Object name20155+4743
    Field of view
    Limiting magnitude
    20155+4743 coordinates20.25786, 47.71422
    Center coordinates20.25786, 47.71422

    20155+4743 Passage Through Night

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    Current position of 20155+4743

    Time21:12
    Latitude39.9625
    Longitude-83.0061
    20155+4743 elevation64°
    20155+4743 Azimuth-61°
    Here you can see the current position of the 20155+4743 on the map, as well as its positions for rise and set. This tool allows you to track the 20155+4743's movement throughout the night, providing you with accurate and up-to-date information.

    Annual motion of 20155+4743

    Time
    DateWed, 27 August 2025
    Twighlight start21:48
    Twighlight end05:16
    Twighlight duration7h 27m
    Rise12:58
    Set09:51
    Elevation at transit82°
    Transit time23:25
    Equatorial coordinatesRA: 20h 15m 28s", Dec: 47° 42' 51s
    Magnitude4
    ConstellationCygnus
    The graph illustrates the annual visibility pattern of a 20155+4743, 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 20155+4743 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.

    Astrometric & Physical Parameters of 20155+4743

    Coordinates & Visibility

    Right Ascension20.25786°
    Declination47.71422°
    Magnitude4.16
    ConstellationCygnus
    Elevation64.3°
    Azimuth-61°