HR822

HR822 is a giant star in the constellation of Eridanus.

HR822 visual magnitude is 6.85. Because of its reltive faintness, HR822 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 HR822:

Color of HR822 ⬤

Magnitude of HR822 6.85

Class Giant

VISIBILITY RIGHT NOW HR822 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR822

HR822 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR822 are provided in the following table:

Right Ascension J2000 02h 45m 16s

Declination J2000 -46° 17’ 13”

Galactic Longitude 260.97°

Galactic Latitude -60.49°

Constellation Eridanus

The simplified sky map below shows the position of HR822 in the sky:

Simplified finder chart for HR822.

Visibility of HR822 from your location

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

HR822 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR822

The image below is a photograph of HR822 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 HR822 is -0.003 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR822. The red arrow shows the motion of HR822 during the next 10000 years (-0.50 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of HR822 from the Sun and relative movement

HR822 is distant 1,298.80 light years from the Sun and it is moving far from the Sun at the speed of 32 kilometers per second.

Distance (parsec) 398.41 pc

Distance (light year) 1,298.80 ly

Heliocentric radial velocity 32 km/s

Proper Motion RA -0.003 arcsec/year

Proper Motion Dec -0.014 arcsec/year

Spectral properties of HR822

HR822 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.15

Spectral Type K2III

Color Index (B-V) 1.36

Temperature of HR822 4017K

The red dot in the diagram below shows where HR822 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR822. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR822

Henry Draper Catalogue HD17325

SAO Catalogue SAO216036

Hipparcos Catalogue HIP12855

Durchmusterung Catalogue CD-46 797

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In Evidence

Other stars in Eridanus