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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:25 
Transit: 12:45 
Sunset: 18:04
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All Constellations » Puppis » 

21 Puppis

Above the horizon.  Rise: 3:09 | Tran: 7:41 | Set: 12:13
Alt: 7.18°   Az: 127.89°   Direction: South-East

21 Puppis is a variable main-sequence star of spectral class A2 in the constellation of Puppis.

21 Puppis visual magnitude is 6.16. Because of its faintness, 21 Puppis 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 Puppis star
DSS2 image of 21 Puppis. The red arrow shows the motion of 21 Puppis during the next 10000 years (-3.33 arcmin in Right Ascension and -1.33 arcmin in declination);

Celestial Coordinates

Apparent

08h 18m 31s
-16° 21’ 47”
20h 21m 14s
04h 39m 45s

J2000

08h 17m 23s
-16° 17’ 06”

Galactic Coordinates

237.58°
10.66°

Finder Chart

Finder chart 21 Puppis star
Simplified finder chart for 21 Puppis.

Magnitude, Color, Spectral Class

6.16
Main-sequence

-0.94
A2V
10002K

The red dot in the diagram below shows where 21 Puppis is situated in the Hertzsprungā€“Russell diagram.

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

Distance, Radial Speed, Proper Motion

21 Puppis is distant 857.89 light years from the Sun

263.16
857.89
-0.02 arcsec/y
-0.008"/y

Alternative Designations

SAO154076
SAO154076

Visibility from Your Location

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

Azimuth: 106.4°
Max altitude: 22.2°
Azimuth: 253.6°