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Sky-Tonight.com / Double stars / 18254-2033 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

18254-2033 Position and Visibility Tonight

18254-2033

Where is 18254-2033 right now?

18254-2033 is located in the constellation Sagittarius. Although 18254-2033 is currently 25° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:24 local time. At that moment, 18254-2033 will be 32° above the horizon toward the south.
Open the interactive guide to 18254-2033’s position and path tonight

18254-2033 visibility on 2026-09-08

18254-2033 Visible from sunset until early morning

18254-2033 rise and set timetable

TimeElevation
Moonrise, 21% illuminated 00:35-14°
18254-2033 rise13:31
Moonset15:3820°
Sunset17:2630°
Civil sunset17:5332°
18254-2033 transit18:2432°
Twilight start18:2432°
Astronomical observing session begins18:5632°
18254-2033 set23:17
Astronomical observing session ends03:14-46°

Track 18254-2033 Position Throughout the Night

← 8 September 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 18254-2033 changing position in the night sky.

Star system description: 18254-2033

System 18254-2033 — double star system, is located in the constellation Sagittarius, at coordinates RA: 18h 25m 21s", Dec: -20° 32' 29s.
The primary and secondary magnitudes are 5.03 and 7.43. Their separation is 1.8 arcseconds, at position angle 297°. The magnitude difference is 2.4 magnitudes; the primary is approximately 9.1 times brighter.
The primary is orange; the secondary is white.
The following technical data come from the Washington Double Star Catalog.

Technical details: 18254-2033

Property Value
System identifier 18254-2033
System type double star system
Primary star 21 Sgr
Right ascension (RA) 18.4225 (18h 25m 21s")
Declination (Dec) -20.54164 (-20° 32' 29s)
Primary magnitude 5.03
Secondary magnitude 7.43
Spectral type (primary/secondary) K1III+A1V (orange/white)
Separation (arcseconds) 1.8
Position angle 297°
Discovery year 1846
Last observed 2008
Primary proper motion (RA, Dec) +020-023
Secondary proper motion (RA, Dec) +020-023
Number of observations 34

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

Finder Chart for 21 Sgr

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Object name21 Sgr
Field of view
Limiting magnitude
21 Sgr coordinates18.4225, -20.54164
Center coordinates18.4225, -20.54164

18254-2033 Passage Through Night

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Current position of 18254-2033

Time16:17
Latitude37.3541
Longitude-121.955
Elevation25°
Azimuth147°
Here you can see the current position of 18254-2033 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 18254-2033 Visible Throughout the Year?


18254-2033 will remain visible until October 7, 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
Rise13:27
Set23:13
Elevation at transit32°
Transit time18:20
Equatorial coordinatesRA: 18h 25m 21s", Dec: -20° 32' 29s
Magnitude5
ConstellationSagittarius
The graph illustrates the annual visibility pattern of 18254-2033, 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 18254-2033 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of 18254-2033

Coordinates and Visibility

Right Ascension18h 25m 21s
Declination-20° 32′ 30″
Magnitude5.03
ConstellationSagittarius
Elevation24.8°
Azimuth147°