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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 » 

4 Aquilae

Above the horizon.  Rise: 2:51 | Tran: 8:59 | Set: 15:08
Alt: 1.48°   Az: 271.49°   Direction: West

4 Aquilae is a variable main-sequence star of spectral class B9 in the constellation of Aquila.

4 Aquilae visual magnitude is 5.02. Because of its faintness, 4 Aquilae is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 4 Aquilae star
DSS2 image of 4 Aquilae. The red arrow shows the motion of 4 Aquilae during the next 10000 years (1.50 arcmin in Right Ascension and -3.00 arcmin in declination);

Celestial Coordinates

Apparent

18h 46m 05s
+02° 05’ 15”
06h 00m 57s
00h 47m 03s

J2000

18h 44m 49s
+02° 03’ 36”

Galactic Coordinates

34.01°
2.41°

Finder Chart

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Finder chart for 4 Aquilae.

Magnitude, Color, Spectral Class

5.02
Main-sequence

-0.78
B9V
10941K

The red dot in the diagram below shows where 4 Aquilae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 4 Aquilae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

4 Aquilae is distant 471.78 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

144.72
471.78
-13 km/s
0.009 arcsec/y
-0.018"/y

Alternative Designations

SAO123879
SAO123879

Visibility from Your Location

Today's 4 Aquilae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 87.9°
Max altitude: 40.6°
Azimuth: 272.1°