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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Cetus » 


Altitude: -34.5°   Azimuth: 80.4°   Direction: East

HR651 is a giant star in the constellation of Cetus.

HR651 visual magnitude is 5.86. Because of its reltive faintness, HR651 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR651 is 0.05 arcsec per year in Right Ascension and 0.035 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR651 star
DSS2 image of HR651. The red arrow shows the motion of HR651 during the next 10000 years (8.33 arcmin in Right Ascension and 5.83 arcmin in declination);

Key facts about HR651


HR651 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -34.5°
Azimuth: 80.4°
Direction: East

Celestial coordinates and finder chart of HR651

HR651 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 HR651 are provided in the following table:

02h 13m 00s
-21° 00’ 01”

The simplified sky map below shows the position of HR651 in the sky:

Finder chart HR651 star
Simplified finder chart for HR651.

Visibility of HR651 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR651 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 111.0°
Max altitude: 17.5°
Azimuth: 249.0°

Distance of HR651 from the Sun and relative movement

HR651 is distant 399.02 light years from the Sun and it is moving far from the Sun at the speed of 38 kilometers per second.

122.40 pc
399.02 ly
38 km/s
0.05 arcsec/year
0.035 arcsec/year

Spectral properties of HR651

HR651 belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR651 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR651. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR651