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public LocationGreenwich, UK
Sunrise: 5:07 
Transit: 13:06 
Sunset: 21:04
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Monoceros » 


Below the horizon.  Rise: 6:13 | Tran: 11:59 | Set: 17:46
Alt: -17.15°   Az: 71.33°   Direction: East-North-East

HR2521 is a giant star of spectral class B8 in the constellation of Monoceros.

HR2521 visual magnitude is 5.74. Because of its faintness, HR2521 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.

HR2521 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of HR2521 star
DSS2 image of HR2521. The red arrow shows the motion of HR2521 during the next 100000 years (-15.00 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates


06h 50m 30s
-02° 18’ 05”
16h 19m 49s
23h 10m 20s


06h 49m 16s
-02° 16’ 18”

Galactic Coordinates


Finder Chart

Finder chart HR2521 star
Simplified finder chart for HR2521.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where HR2521 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2521. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR2521 is distant 558.22 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

171.23 pc
558.22 ly
10 km/s
-0.009 arcsec/y
-0.004 "/y

Alternative Designations


Visibility from Your Location

Today's HR2521 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 92.3°
Max altitude: 36.2°
Azimuth: 267.7°