HR579

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:

Color of HR579 ⬤

Magnitude of HR579 6.23

Class Giant

VISIBILITY RIGHT NOW HR579 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 65°.

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:

Right Ascension J2000 02h 03m 10s

Declination J2000 +73° 51’ 02”

Galactic Longitude 127.95°

Galactic Latitude 11.68°

Constellation Cassiopeia

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

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 09:32 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.

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.

Distance (parsec) 111.36 pc

Distance (light year) 363.03 ly

Heliocentric radial velocity -5 km/s

Proper Motion RA -0.029 arcsec/year

Proper Motion Dec -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.

Absolute magnitude 1.00

Spectral Type A5III

Color Index (B-V)

Temperature of HR579 10125K

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

Main star magnitude 6.23

Secondary star magnitude 9.33

Magnitude difference 3.1

Separation 5.5 arcsec

Alternative designations of HR579

Henry Draper Catalogue HD12173

SAO Catalogue SAO4559

Hipparcos Catalogue HIP9586

Durchmusterung Catalogue BD+73 108

Aitken Double Star Catalogue ADS1606

In Evidence

Other stars in Cassiopeia