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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Centaurus » 


Altitude: -28.0°   Azimuth: 243.5°   Direction: West-South-West

HR4979 is a main-sequence star in the constellation of Centaurus.

HR4979 visual magnitude is 4.85. Because of its moderate brightness, HR4979 should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of HR4979 is -0.385 arcsec per year in Right Ascension and 0.047 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4979 star
DSS2 image of HR4979. The red arrow shows the motion of HR4979 during the next 1000 years (-6.42 arcmin in Right Ascension and 0.78 arcmin in declination);

Key facts about HR4979


HR4979 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -28.0°
Azimuth: 243.5°
Direction: West-South-West

Celestial coordinates and finder chart of HR4979

HR4979 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4979 are provided in the following table:

13h 12m 03s
-37° 48’ 11”

The simplified sky map below shows the position of HR4979 in the sky:

Finder chart HR4979 star
Simplified finder chart for HR4979.

Visibility of HR4979 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 HR4979 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: 127.8°
Max altitude: 0.7°
Azimuth: 232.2°

Distance of HR4979 from the Sun and relative movement

HR4979 is distant 66.76 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

20.48 pc
66.76 ly
-15 km/s
-0.385 arcsec/year
0.047 arcsec/year

Spectral properties of HR4979

HR4979 belongs to spectral class G3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4979 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4979. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4979

Gl 501.2