HR2812

Altitude: -35.8° Azimuth: 285.1° Direction: West-North-West

HR2812 is a sub-giant star in the constellation of Canis Major.

HR2812 visual magnitude is 4.96. Because of its moderate brightness, HR2812 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR2812:

Color of HR2812 ⬤

Magnitude of HR2812 4.96

Class Sub-giant

VISIBILITY RIGHT NOW

HR2812 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -35.8°
Azimuth: 285.1°
Direction: West-North-West

Celestial coordinates and finder chart of HR2812

HR2812 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2812 are provided in the following table:

Right Ascension J2000 07h 22m 13s

Declination J2000 -19° 01’ 00”

Galactic Longitude 233.29°

Galactic Latitude -2.06°

Constellation Canis Major

The simplified sky map below shows the position of HR2812 in the sky:

Simplified finder chart for HR2812.

Visibility of HR2812 from your location

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

Today's HR2812 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 109.0° RISE 4:06

Max altitude: 19.5° TRANSIT 8:22

Azimuth: 251.0° SET 12:38

Digitized Sky Survey image of HR2812

The image below is a photograph of HR2812 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 HR2812 is -0.006 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR2812. The red arrow shows the motion of HR2812 during the next 100000 years (-10.00 arcmin in Right Ascension and -13.33 arcmin in declination);

Distance of HR2812 from the Sun and relative movement

HR2812 is distant 516.64 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

Distance (parsec) 158.48 pc

Distance (light year) 516.64 ly

Heliocentric radial velocity 27 km/s

Proper Motion RA -0.006 arcsec/year

Proper Motion Dec -0.008 arcsec/year

Spectral properties of HR2812

HR2812 belongs to spectral class B7 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -1.04

Spectral Type B7IV

Color Index (B-V) -0.04

Temperature of HR2812 10653K

The red dot in the diagram below shows where HR2812 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2812. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2812

Henry Draper Catalogue HD57821

SAO Catalogue SAO152776

Hipparcos Catalogue HIP35727

Durchmusterung Catalogue BD-18 1806

FK5 Catalogue 2570

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In Evidence

Other stars in Canis Major