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Sky-Tonight.com / Double stars / 22451 5809 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

22451 5809 Position and Visibility Tonight

22451 5809

Where is 22451+5809 right now?

22451+5809 is located in the constellation Cepheus. Although 22451+5809 is currently 39° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:24 local time. At that moment, 22451+5809 will be 44° above the horizon toward the north-east.
Open the interactive guide to 22451+5809’s position and path tonight

22451+5809 visibility on 2026-09-08

22451 5809 Visible all night

22451+5809 rise and set timetable

TimeElevation
22451+5809 is always above the horizon
Moonrise, 21% illuminated 00:3563°
Moonset15:3823°
Sunset17:2636°
Civil sunset17:5340°
Twilight start18:2444°
Astronomical observing session begins18:5648°
22451+5809 is always above the horizon
22451+5809 transit22:4369°
Astronomical observing session ends03:1442°
Twilight end03:4638°
Civil sunrise04:1734°
Sunrise04:4531°

Track 22451+5809 Position Throughout the Night

← 8 September 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 22451+5809 changing position in the night sky.

Star system description: 22451+5809

System 22451+5809 — double star system, is located in the constellation Cepheus, at coordinates RA: 22h 45m 03s", Dec: 58° 08' 47s.
The primary and secondary magnitudes are 6.0 and 10.0. Their separation is 14.5 arcseconds, at position angle 180°. The magnitude difference is 4 magnitudes; the primary is approximately 39.8 times brighter.
The primary is yellow-white; the secondary is red.
The following technical data come from the Washington Double Star Catalog.

Technical details: 22451+5809

Property Value
System identifier 22451+5809
System type double star system
Primary star Cep-22451 5809
Right ascension (RA) 22.75097 (22h 45m 03s")
Declination (Dec) 58.14656 (58° 08' 47s)
Primary magnitude 6.0
Secondary magnitude 10.0
Spectral type (primary/secondary) F5+M3 (yellow-white/red)
Separation (arcseconds) 14.5
Position angle 180°
Discovery year 2000
Last observed 2015
Primary proper motion (RA, Dec) -061-136
Secondary proper motion (RA, Dec) -056-138
Number of observations 8

Notes

  • V: Proper motion indicates a physical pair.
  • Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.

    Finder Chart for

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    Object name
    Field of view
    Limiting magnitude
    coordinates22.75097, 58.14656
    Center coordinates22.75097, 58.14656

    22451 5809 Passage Through Night

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    Current position of 22451 5809

    Time17:45
    Latitude37.3541
    Longitude-121.955
    Elevation39°
    Azimuth41°
    Here you can see the current position of 22451 5809 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.

    When Is 22451 5809 Visible Throughout the Year?


    22451+5809 will remain visible until February 23, when it moves too close to the Sun and temporarily disappears from the night sky.
    Time
    DateWed, 9 September 2026
    Twilight start18:54
    Twilight end03:13
    Twilight duration8h 18m
    Rise22451 5809 is always up
    Set22451 5809 is always up
    Elevation at transit69°
    Transit time22:39
    Equatorial coordinatesRA: 22h 45m 03s", Dec: 58° 08' 47s
    Magnitude6
    ConstellationCepheus
    The graph illustrates the annual visibility pattern of 22451 5809, 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 see when 22451 5809 is visible throughout the year in a table with exact rise, transit, and set times for each date.

    Astrometric and Physical Parameters of 22451+5809

    Coordinates and Visibility

    Right Ascension22h 45m 03s
    Declination58° 08′ 48″
    Magnitude6.0
    ConstellationCepheus
    Elevation38.8°
    Azimuth40.8°