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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:17
wb_twilight   (Civil Twilight)   What's Visible Now?


Below the horizon.  Rise: 10:00 | Tran: 14:42 | Set: 19:25
Altitude: -45.7°   Azimuth: 44.6°   Direction: North-East

HR2921 is a variable and multiple main-sequence star of spectral class B2 in the constellation of Puppis.

HR2921 visual magnitude is 5.7. Because of its faintness, HR2921 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.

Celestial coordinates and finder chart of HR2921

Finder chart HR2921 star
Simplified finder chart for HR2921.

HR2921 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2921 are provided in the following table:

07h 36m 03s
-14° 29’ 34”
Image of HR2921 star
DSS2 image of HR2921. The red arrow shows the motion of HR2921 during the next 10000 years (-1.67 arcmin in Right Ascension and 0.50 arcmin in declination);

Key facts about HR2921


and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR2921 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2921. Attribution: Richard Powell / CC BY-SA

HR2921 star system properties

HR2921 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR2921 double sysyem:

19.6 arcsec

Distance of HR2921 from the Sun and relative movement

HR2921 is distant 1,654.82 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

507.61 pc
1,654.82 ly
21 km/s
-0.01 arcsec/year
0.003 arcsec/year

Alternative designations of HR2921


Visibility of HR2921 from your location

Today's HR2921 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.5°
Max altitude: 24.0°
Azimuth: 255.5°