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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:16 
Transit: 12:14 
Sunset: 17:12
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All Constellations » Sagittarius » 

υ Sagittarii (upsilon Sagittarii)

Above the horizon.  Rise: 5:09 | Tran: 9:44 | Set: 14:19
Alt: 18.08°   Az: 209.19°   Direction: South-South-West

υ Sagittarii is a variable and double main-sequence star of spectral class B2 in the constellation of Sagittarius.

υ Sagittarii visual magnitude is 4.61. Because of its moderate brightness, υ Sagittarii is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of υ Sagittarii (upsilon Sagittarii) star
DSS2 image of υ Sagittarii. The red arrow shows the motion of υ Sagittarii during the next 100000 years (3.33 arcmin in Right Ascension and -10.00 arcmin in declination);

Celestial Coordinates

Apparent

19h 23m 09s
-15° 54’ 20”
01h 55m 17s
21h 18m 27s

J2000

19h 21m 43s
-15° 57’ 18”

Galactic Coordinates

21.84°
-13.77°

Finder Chart

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Finder chart for υ Sagittarii (upsilon Sagittarii).

Magnitude, Color, Spectral Class

4.61
Main-sequence

-3.94
B2V
9028K

The red dot in the diagram below shows where υ Sagittarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of υ Sagittarii. Attribution: Richard Powell / CC BY-SA

Star System Properties

υ Sagittarii is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the υ Sagittarii double sysyem:

4.61
5.61
1
0 arcsec

Distance, Radial Speed, Proper Motion

υ Sagittarii is distant 1,671.79 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

512.82
1,671.79
9 km/s
0.002 arcsec/y
-0.006"/y

Alternative Designations

υ Sagittarii
(upsilon Sagittarii)
46 Sagittarii
SAO162518
SAO162518

Visibility from Your Location

Today's υ Sagittarii (upsilon Sagittarii) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 105.9°
Max altitude: 22.6°
Azimuth: 254.1°