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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: 6:48  
clear_day Transit: 12:11  
SunsetSet: 17:34
sunny DaytimeWhat's Visible Now?
All Constellations » Perseus » 


Altitude: 53.7°   Azimuth: 87.1°   Direction: East

HR979 is a double main-sequence star in the constellation of Perseus.

HR979 visual magnitude is 6.45. Because of its reltive faintness, HR979 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 HR979 is 0.015 arcsec per year in Right Ascension and -0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR979 star
DSS2 image of HR979. The red arrow shows the motion of HR979 during the next 10000 years (2.50 arcmin in Right Ascension and -3.83 arcmin in declination);

Key facts about HR979


HR979 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 53.7°
Azimuth: 87.1°
Direction: East

Celestial coordinates and finder chart of HR979

HR979 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR979 are provided in the following table:

03h 17m 11s
+40° 28’ 59”

The simplified sky map below shows the position of HR979 in the sky:

Finder chart HR979 star
Simplified finder chart for HR979.

Visibility of HR979 from your location

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

HR979 is circumpolar and transits at 16:45 UTC (altitude: 79.0°)

Distance of HR979 from the Sun and relative movement

HR979 is distant 704.10 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

215.98 pc
704.10 ly
-8 km/s
0.015 arcsec/year
-0.023 arcsec/year

Spectral properties of HR979

HR979 belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star. HR979 is also a Si chemically peculiar star.


The red dot in the diagram below shows where HR979 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR979. Attribution: Richard Powell / CC BY-SA

HR979 star system properties

HR979 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 HR979 double sysyem:

3.8 arcsec

Alternative designations of HR979