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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: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Coma Berenices » 


Altitude: 1.9°   Azimuth: 50.7°   Direction: North-East

HR4864 is a main-sequence star in the constellation of Coma Berenices.

HR4864 visual magnitude is 6.31. Because of its reltive faintness, HR4864 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 HR4864 is -0.339 arcsec per year in Right Ascension and -0.108 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4864 star
DSS2 image of HR4864. The red arrow shows the motion of HR4864 during the next 1000 years (-5.65 arcmin in Right Ascension and -1.80 arcmin in declination);

Key facts about HR4864


HR4864 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 1.9°
Azimuth: 50.7°
Direction: North-East

Celestial coordinates and finder chart of HR4864

HR4864 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 HR4864 are provided in the following table:

12h 48m 47s
+24° 50’ 25”
Coma Berenices

The simplified sky map below shows the position of HR4864 in the sky:

Finder chart HR4864 star
Simplified finder chart for HR4864.

Visibility of HR4864 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 HR4864 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: 65.2°
Max altitude: 63.4°
Azimuth: 294.8°

Distance of HR4864 from the Sun and relative movement

HR4864 is distant 55.98 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

17.17 pc
55.98 ly
-8 km/s
-0.339 arcsec/year
-0.108 arcsec/year

Spectral properties of HR4864

HR4864 belongs to spectral class G7 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4864 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4864. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4864

Gl 486.1