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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
north SunriseRise: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sunny DaytimeWhat's Visible Now?
All Constellations » Cassiopeia » 


Altitude: 40.2°   Azimuth: 16.8°   Direction: North-North-East

HR579 is a double giant star in the constellation of Cassiopeia.

HR579 visual magnitude is 6.23. Because of its reltive faintness, HR579 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR579:


HR579 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 40.2°
Azimuth: 16.8°
Direction: North-North-East

Celestial coordinates and finder chart of HR579

HR579 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR579 are provided in the following table:

02h 03m 10s
+73° 51’ 02”

The simplified sky map below shows the position of HR579 in the sky:

Finder chart HR579 star
Simplified finder chart for HR579.

Visibility of HR579 from your location

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

HR579 is circumpolar and transits at 20:41 UTC (altitude: 67.6°)

Digitized Sky Survey image of HR579

The image below is a photograph of HR579 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR579 is -0.029 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR579 star
DSS2 image of HR579. The red arrow shows the motion of HR579 during the next 10000 years (-4.83 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR579 from the Sun and relative movement

HR579 is distant 363.03 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

111.36 pc
363.03 ly
-5 km/s
-0.029 arcsec/year
-0.005 arcsec/year

Spectral properties of HR579

HR579 belongs to spectral class A5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR579 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR579. Attribution: Richard Powell / CC BY-SA

HR579 star system properties

HR579 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 HR579 double sysyem:

5.5 arcsec

Alternative designations of HR579