HR8918

HR8918 is a sub-giant star in the constellation of Cepheus.

HR8918 visual magnitude is 5.6. Because of its reltive faintness, HR8918 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 HR8918:

Color of HR8918 ⬤

Magnitude of HR8918 5.6

Class Sub-giant

VISIBILITY RIGHT NOW HR8918 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 49°.

Celestial coordinates and finder chart of HR8918

HR8918 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 HR8918 are provided in the following table:

Right Ascension J2000 23h 27m 16s

Declination J2000 +70° 21’ 34”

Galactic Longitude 115.92°

Galactic Latitude 8.64°

Constellation Cepheus

The simplified sky map below shows the position of HR8918 in the sky:

Simplified finder chart for HR8918.

Visibility of HR8918 from your location

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

HR8918 is circumpolar and transits at 11:32 UTC (altitude: 71.1°)

Digitized Sky Survey image of HR8918

The image below is a photograph of HR8918 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 HR8918 is 0.119 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR8918. The red arrow shows the motion of HR8918 during the next 1000 years (1.98 arcmin in Right Ascension and -0.10 arcmin in declination);

Distance of HR8918 from the Sun and relative movement

HR8918 is distant 206.20 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 63.25 pc

Distance (light year) 206.20 ly

Heliocentric radial velocity -3 km/s

Proper Motion RA 0.119 arcsec/year

Proper Motion Dec -0.006 arcsec/year

Spectral properties of HR8918

HR8918 belongs to spectral class A6 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 1.59

Spectral Type A6IV

Color Index (B-V) 0.19

Temperature of HR8918 8241K

The red dot in the diagram below shows where HR8918 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8918. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8918

Henry Draper Catalogue HD220974

SAO Catalogue SAO10737

Hipparcos Catalogue HIP115770

Durchmusterung Catalogue BD+69 1332

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In Evidence

Other stars in Cepheus