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Sky-Tonight.com / Double stars / 15330-0111 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

15330-0111 Position and Visibility Tonight

15330-0111

Where is 15330-0111 right now?

15330-0111 is located in the constellation Serpens. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:57 local time. At that moment, 15330-0111 will be 42° above the horizon toward the south-west.

15330-0111 visibility on 2026-08-18

15330-0111 Visible from sunset until early morning

15330-0111 rise and set timetable

TimeElevation
Moonrise, 21% illuminated 09:49-14°
15330-0111 transit16:5451°
Sunset17:5549°
Civil sunset18:2446°
Twilight start18:5742°
Astronomical observing session begins19:3237°
Moonset20:2628°
15330-0111 set22:50
Astronomical observing session ends02:51-44°
15330-0111 rise10:55

Track 15330-0111 Position Throughout the Night

← 18 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 15330-0111 changing position in the night sky.

Star system description: 15330-0111

System 15330-0111 — double star system, is located in the constellation Serpens, at coordinates RA: 15h 32m 57s", Dec: -1° 11' 10s.
The primary and secondary magnitudes are 5.62 and 8.61. Their separation is 16.7 arcminutes, at position angle 103°. The magnitude difference is 2.99 magnitudes; the primary is approximately 15.7 times brighter.
The primary is orange; the secondary is yellow.
The following technical data come from the Washington Double Star Catalog.

Technical details: 15330-0111

Property Value
System identifier 15330-0111
System type double star system
Primary star Ser-15330-0111
Right ascension (RA) 15.54942 (15h 32m 57s")
Declination (Dec) -1.18631 (-1° 11' 10s)
Primary magnitude 5.62
Secondary magnitude 8.61
Spectral type (primary/secondary) K0III+G2V (orange/yellow)
Separation (arcseconds) 999.9
Position angle 103°
Discovery year 1991
Last observed 2016
Primary proper motion (RA, Dec) -017-043
Secondary proper motion (RA, Dec) -016-043
Number of observations 4

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
    coordinates15.54942, -1.18631
    Center coordinates15.54942, -1.18631

    15330-0111 Passage Through Night

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    Current position of 15330-0111

    Time08:46
    Latitude37.3541
    Longitude-121.955
    Elevation-26°
    Azimuth70°
    Here you can see the current position of 15330-0111 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 15330-0111


    15330-0111 will remain visible until September 20, when it moves too close to the Sun and temporarily disappears from the night sky.
    Time
    DateTue, 18 August 2026
    Twilight start19:28
    Twilight end02:44
    Twilight duration7h 17m
    Rise10:55
    Set22:46
    Elevation at transit51°
    Transit time16:51
    Equatorial coordinatesRA: 15h 32m 57s", Dec: -1° 11' 10s
    Magnitude6
    ConstellationSerpens
    The graph illustrates the annual visibility pattern of 15330-0111, 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 15330-0111

    Coordinates and Visibility

    Right Ascension15.54942°
    Declination-1.18631°
    Magnitude5.62
    ConstellationSerpens
    Elevation-26.1°
    Azimuth69.9°