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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:57 
Transit: 12:56 
Sunset: 20:56
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All Constellations » Vulpecula » 

21 Vulpeculae

Above the horizon.  Rise: 20:11 | Tran: 5:07 | Set: 13:58
Alt: 26.85°   Az: 283.32°   Direction: West-North-West

21 Vulpeculae is a variable sub-giant star of spectral class A7 in the constellation of Vulpecula.

21 Vulpeculae visual magnitude is 5.18. Because of its faintness, 21 Vulpeculae 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 21 Vulpeculae star
DSS2 image of 21 Vulpeculae. The red arrow shows the motion of 21 Vulpeculae during the next 10000 years (2.33 arcmin in Right Ascension and -3.67 arcmin in declination);

Celestial Coordinates

Apparent

20h 15m 17s
+28° 46’ 23”
05h 28m 24s
01h 43m 41s

J2000

20h 14m 14s
+28° 41’ 40”

Galactic Coordinates

67.66°
-3.27°

Finder Chart

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Finder chart for 21 Vulpeculae.

Magnitude, Color, Spectral Class

5.18
Sub-giant

0.17
A7IV
8321K

The red dot in the diagram below shows where 21 Vulpeculae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 21 Vulpeculae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

21 Vulpeculae is distant 326.98 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

100.30
326.98
7 km/s
0.014 arcsec/y
-0.022"/y

Alternative Designations

21 Vulpeculae
SAO88391
SAO88391

Visibility from Your Location

Today's 21 Vulpeculae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.2°
Max altitude: 67.3°
Azimuth: 298.8°