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public  Coolum Beach, Australia Coolum Beach, Australia  ⓘ
TimezoneAustralia/Brisbane
Sunrise: 6:27 
Transit: 11:45 
Sunset: 17:02
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All Constellations » Sagittarius » 

θ1 Sagittarii (theta1 Sagittarii)

Above the horizon.  Rise: 19:59 | Tran: 3:19 | Set: 10:43
Alt: 40.09°   Az: 114.96°   Direction: East-South-East

θ1 Sagittarii is a sub-giant star of spectral class B3 in the constellation of Sagittarius.

θ1 Sagittarii visual magnitude is 4.37. Because of its moderate brightness, θ1 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 θ1 Sagittarii (theta1 Sagittarii) star
DSS2 image of θ1 Sagittarii. The red arrow shows the motion of θ1 Sagittarii during the next 10000 years (1.00 arcmin in Right Ascension and -4.33 arcmin in declination);

Celestial Coordinates

Apparent

20h 01m 23s
-35° 12’ 19”
20h 07m 40s
16h 09m 03s

J2000

19h 59m 44s
-35° 16’ 35”

Galactic Coordinates

5.52°
-28.47°

Finder Chart

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Finder chart for θ1 Sagittarii (theta1 Sagittarii).

Magnitude, Color, Spectral Class

4.37
Sub-giant

-2.02
B3IV
12489K

The red dot in the diagram below shows where θ1 Sagittarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of θ1 Sagittarii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

θ1 Sagittarii is distant 617.42 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

189.39
617.42
1 km/s
0.006 arcsec/y
-0.026"/y

Alternative Designations

θ1 Sagittarii
(theta1 Sagittarii)
SAO211716
SAO211716

Visibility from Your Location

Today's θ1 Sagittarii (theta1 Sagittarii) rise, transit and set times from Coolum Beach, Australia are the following (all times relative to the local timezone Australia/Brisbane):

Azimuth: 125.2°
Max altitude: 81.3°
Azimuth: 234.8°