HR8768

HR8768 is a variable and double main-sequence star in the constellation of Andromeda.

HR8768 visual magnitude is 6.39. Because of its reltive faintness, HR8768 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 HR8768:

Color of HR8768 ⬤

Magnitude of HR8768 6.39

Class Main-sequence

VISIBILITY RIGHT NOW HR8768 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 13°.

Celestial coordinates and finder chart of HR8768

HR8768 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 HR8768 are provided in the following table:

Right Ascension J2000 23h 02m 45s

Declination J2000 +44° 03’ 32”

Galactic Longitude 103.11°

Galactic Latitude -14.59°

Constellation Andromeda

The simplified sky map below shows the position of HR8768 in the sky:

Simplified finder chart for HR8768.

Visibility of HR8768 from your location

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

HR8768 is circumpolar and transits at 10:36 UTC (altitude: 82.6°)

Digitized Sky Survey image of HR8768

The image below is a photograph of HR8768 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 HR8768 is 0.001 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR8768. The red arrow shows the motion of HR8768 during the next 100000 years (1.67 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR8768 from the Sun and relative movement

HR8768 is distant 1,176.90 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 361.01 pc

Distance (light year) 1,176.90 ly

Heliocentric radial velocity -8 km/s

Proper Motion RA 0.001 arcsec/year

Proper Motion Dec -0.002 arcsec/year

Spectral properties of HR8768

HR8768 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.40

Spectral Type B2V

Color Index (B-V) 0

Temperature of HR8768 10125K

The red dot in the diagram below shows where HR8768 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8768. Attribution: Richard Powell / CC BY-SA

HR8768 star system properties

HR8768 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR8768 double sysyem:

Main star magnitude 6.39

Secondary star magnitude 10.29

Magnitude difference 3.9

Separation 7.4 arcsec

Alternative designations of HR8768

Henry Draper Catalogue HD217811

SAO Catalogue SAO52626

Hipparcos Catalogue HIP113802

Durchmusterung Catalogue BD+43 4378

General Catalogue of Variable Stars LN And

Aitken Double Star Catalogue ADS16472

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