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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:05 
Transit: 12:56 
Sunset: 20:48
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All Constellations » Pegasus » 

21 Pegasi

Below the horizon.  Rise: 0:18 | Tran: 7:19 | Set: 14:16
Alt: -25.68°   Az: 16.35°   Direction: North-North-East

21 Pegasi is a main-sequence star of spectral class B9 in the constellation of Pegasus.

21 Pegasi visual magnitude is 5.8. Because of its faintness, 21 Pegasi 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 Pegasi star
DSS2 image of 21 Pegasi. The red arrow shows the motion of 21 Pegasi during the next 10000 years (2.83 arcmin in Right Ascension and -2.00 arcmin in declination);

Celestial Coordinates

Apparent

22h 04m 33s
+11° 30’ 35”
13h 00m 00s
11h 04m 34s

J2000

22h 03m 19s
+11° 23’ 11”

Galactic Coordinates

70.66°
-33.92°

Finder Chart

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Finder chart for 21 Pegasi.

Magnitude, Color, Spectral Class

5.8
Main-sequence

-0.30
B9V
11092K

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

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

Distance, Radial Speed, Proper Motion

21 Pegasi is distant 540.63 light years from the Sun

165.84
540.63
0.017 arcsec/y
-0.012"/y

Alternative Designations

SAO107625
SAO107625

Visibility from Your Location

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

Azimuth: 78.5°
Max altitude: 50.0°
Azimuth: 281.5°