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

θ Aquilae (theta Aquilae)

Above the horizon.  Rise: 4:31 | Tran: 10:25 | Set: 16:20
Alt: 3.57°   Az: 264.31°   Direction: West

θ Aquilae is a double giant star of spectral class B9 in the constellation of Aquila.

θ Aquilae visual magnitude is 3.23. Because of its moderate brightness, θ Aquilae 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 θ Aquilae (theta Aquilae) star
DSS2 image of θ Aquilae. The red arrow shows the motion of θ Aquilae during the next 10000 years (6.33 arcmin in Right Ascension and 0.67 arcmin in declination);

Celestial Coordinates

Apparent

20h 12m 35s
-00° 44’ 42”
05h 33m 17s
01h 45m 53s

J2000

20h 11m 18s
-00° 49’ 17”

Galactic Coordinates

41.58°
-18.08°

Finder Chart

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Finder chart for θ Aquilae (theta Aquilae).

Magnitude, Color, Spectral Class

3.23
Giant

-1.49
B9III
11092K

The red dot in the diagram below shows where θ Aquilae is situated in the Hertzsprung–Russell diagram.

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

Star System Properties

θ Aquilae 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 θ Aquilae double sysyem:

3.23
12.83
9.6
113.7 arcsec

Distance, Radial Speed, Proper Motion

θ Aquilae is distant 286.97 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

88.03
286.97
-27 km/s
0.038 arcsec/y
0.004"/y

Alternative Designations

θ Aquilae
(theta Aquilae)
SAO144150
SAO144150

Visibility from Your Location

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

Azimuth: 90.7°
Max altitude: 37.8°
Azimuth: 269.3°