HR7912

Altitude: 8.2° Azimuth: 348.6° Direction: North-North-West

HR7912 is a sub-giant star in the constellation of Cygnus.

HR7912 visual magnitude is 6.58. Because of its reltive faintness, HR7912 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 HR7912:

Color of HR7912 ⬤

Magnitude of HR7912 6.58

Class Sub-giant

VISIBILITY RIGHT NOW

HR7912 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 8.2°
Azimuth: 348.6°
Direction: North-North-West

Celestial coordinates and finder chart of HR7912

HR7912 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 HR7912 are provided in the following table:

Right Ascension J2000 20h 39m 23s

Declination J2000 +45° 40’ 00”

Galactic Longitude 84.37°

Galactic Latitude 2.52°

Constellation Cygnus

The simplified sky map below shows the position of HR7912 in the sky:

Simplified finder chart for HR7912.

Visibility of HR7912 from your location

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

HR7912 is circumpolar and transits at 15:58 UTC (altitude: 84.2°)

Digitized Sky Survey image of HR7912

The image below is a photograph of HR7912 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 HR7912 is 0.005 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR7912. The red arrow shows the motion of HR7912 during the next 100000 years (8.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR7912 from the Sun and relative movement

HR7912 is distant 1,952.10 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 598.80 pc

Distance (light year) 1,952.10 ly

Heliocentric radial velocity -15 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of HR7912

HR7912 belongs to spectral class B5 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -2.31

Spectral Type B5IV

Color Index (B-V) -0.06

Temperature of HR7912 10941K

The red dot in the diagram below shows where HR7912 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7912. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7912

Henry Draper Catalogue HD197036

SAO Catalogue SAO49898

Hipparcos Catalogue HIP101934

Durchmusterung Catalogue BD+45 3233

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In Evidence

Other stars in Cygnus