HR481

Altitude: 30.9° Azimuth: 332.2° Direction: North-North-West

HR481 is a giant star in the constellation of Cassiopeia.

HR481 visual magnitude is 6.71. Because of its reltive faintness, HR481 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 HR481:

Color of HR481 ⬤

Magnitude of HR481 6.71

Class Giant

VISIBILITY RIGHT NOW

HR481 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 30.9°
Azimuth: 332.2°
Direction: North-North-West

Celestial coordinates and finder chart of HR481

HR481 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 HR481 are provided in the following table:

Right Ascension J2000 01h 42m 02s

Declination J2000 +61° 02’ 17”

Galactic Longitude 129.02°

Galactic Latitude -1.23°

Constellation Cassiopeia

The simplified sky map below shows the position of HR481 in the sky:

Simplified finder chart for HR481.

Visibility of HR481 from your location

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

HR481 is circumpolar and transits at 20:56 UTC (altitude: 80.4°)

Digitized Sky Survey image of HR481

The image below is a photograph of HR481 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 HR481 is 0.015 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR481. The red arrow shows the motion of HR481 during the next 10000 years (2.50 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of HR481 from the Sun and relative movement

HR481 is distant 993.90 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

Distance (parsec) 304.88 pc

Distance (light year) 993.90 ly

Heliocentric radial velocity -13 km/s

Proper Motion RA 0.015 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of HR481

HR481 belongs to spectral class B8 and has a luminosity class of III corresponding to a giant star. HR481 is also a Si chemically peculiar star.

Absolute magnitude -0.71

Spectral Type B8III

Color Index (B-V) -0.03

Temperature of HR481 10516K

The red dot in the diagram below shows where HR481 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR481. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR481

Henry Draper Catalogue HD10260

SAO Catalogue SAO11920

Hipparcos Catalogue HIP7939

Durchmusterung Catalogue BD+60 308

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In Evidence

Other stars in Cassiopeia