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Sky-Tonight.com / Double stars / 22091-1831 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

22091-1831 Position and Visibility Tonight

22091-1831

Where is 22091-1831 right now?

22091-1831 is located in the constellation Aquarius. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:24 local time. At that moment, 22091-1831 will be 13° above the horizon toward the south-east.
Open the interactive guide to 22091-1831’s position and path tonight

22091-1831 visibility on 2026-09-08

22091-1831 Visible from sunset until early morning

22091-1831 rise and set timetable

TimeElevation
Moonrise, 21% illuminated 00:3525°
Moonset15:38-17°
22091-1831 rise17:07
Sunset17:263°
Civil sunset17:538°
Twilight start18:2413°
Astronomical observing session begins18:5618°
22091-1831 transit22:0734°
22091-1831 set03:07
Astronomical observing session ends03:14-1°

Track 22091-1831 Position Throughout the Night

← 8 September 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 22091-1831 changing position in the night sky.

Star system description: 22091-1831

System 22091-1831 — quadruple star system, is located in the constellation Aquarius, at coordinates RA: 22h 08m 58s", Dec: -18° 31' 10s.
The primary and secondary magnitudes are 5.77 and 8.5. Their separation is 2.7 arcminutes, at position angle 40°. The magnitude difference is 2.73 magnitudes; the primary is approximately 12.4 times brighter.
The following technical data come from the Washington Double Star Catalog.

Technical details: 22091-1831

Property Value
System identifier 22091-1831
System type quadruple star system
Primary star Aqr-22091-1831
Right ascension (RA) 22.14969 (22h 08m 58s")
Declination (Dec) -18.51958 (-18° 31' 10s)
Primary magnitude 5.77
Secondary magnitude 8.5
Spectral type (primary/secondary) B2III
Separation (arcseconds) 160.0
Position angle 40°
Discovery year 1873
Last observed 2020
Primary proper motion (RA, Dec) +000-008
Secondary proper motion (RA, Dec) +054-016
Number of observations 8

Components of 22091-1831

ComponentMagnitudeSeparation (arcseconds)Position angle
A,BC8.5160.040
AD12.4482.227
BC9.242.075

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
coordinates22.14969, -18.51958
Center coordinates22.14969, -18.51958

22091-1831 Passage Through Night

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Current position of 22091-1831

Time14:17
Latitude37.3541
Longitude-121.955
Elevation-33°
Azimuth89°
Here you can see the current position of 22091-1831 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 22091-1831 Visible Throughout the Year?


22091-1831 will remain visible until December 21, when it moves too close to the Sun and temporarily disappears from the night sky.
Time
DateTue, 8 September 2026
Twilight start18:52
Twilight end03:08
Twilight duration8h 16m
Rise17:03
Set03:03
Elevation at transit34°
Transit time22:03
Equatorial coordinatesRA: 22h 08m 58s", Dec: -18° 31' 10s
Magnitude6
ConstellationAquarius
The graph illustrates the annual visibility pattern of 22091-1831, 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 22091-1831 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of 22091-1831

Coordinates and Visibility

Right Ascension22h 08m 59s
Declination-18° 31′ 10″
Magnitude5.77
ConstellationAquarius
Elevation-33°
Azimuth88.9°