HR964

HR964 is a double hypergiant star in the constellation of Perseus.

HR964 visual magnitude is 5.79. Because of its reltive faintness, HR964 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 HR964:

Color of HR964 ⬤

Magnitude of HR964 5.79

Class Hypergiant

VISIBILITY RIGHT NOW HR964 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 33°.

Celestial coordinates and finder chart of HR964

HR964 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 HR964 are provided in the following table:

Right Ascension J2000 03h 15m 47s

Declination J2000 +57° 08’ 26”

Galactic Longitude 141.57°

Galactic Latitude -0.41°

Constellation Perseus

The simplified sky map below shows the position of HR964 in the sky:

Simplified finder chart for HR964.

Visibility of HR964 from your location

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

HR964 is circumpolar and transits at 10:29 UTC (altitude: 84.3°)

Digitized Sky Survey image of HR964

The image below is a photograph of HR964 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 HR964 is -0.004 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR964. The red arrow shows the motion of HR964 during the next 100000 years (-6.67 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR964 from the Sun and relative movement

HR964 is distant 1,613.86 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

Distance (parsec) 495.05 pc

Distance (light year) 1,613.86 ly

Heliocentric radial velocity -12 km/s

Proper Motion RA -0.004 arcsec/year

Proper Motion Dec 0.003 arcsec/year

Spectral properties of HR964

HR964 belongs to spectral class A0 and has a luminosity class of I corresponding to a hypergiant star.

Absolute magnitude -2.68

Spectral Type A0I

Color Index (B-V) 0.73

Temperature of HR964 5501K

The red dot in the diagram below shows where HR964 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR964. Attribution: Richard Powell / CC BY-SA

HR964 star system properties

HR964 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR964 double sysyem:

Main star magnitude 5.79

Secondary star magnitude 13.99

Magnitude difference 8.2

Separation 10.8 arcsec

Alternative designations of HR964

Henry Draper Catalogue HD20041

SAO Catalogue SAO23903

Hipparcos Catalogue HIP15192

Durchmusterung Catalogue BD+56 798

Aitken Double Star Catalogue ADS2424

In Evidence

Other stars in Perseus