HR7981

Above the horizon. Rise: 22:12 | Tran: 5:51 | Set: 13:26

Alt: 11.64° Az: 75.42° Direction: East-North-East

HR7981 is a main-sequence star of spectral class A1 in the constellation of Delphinus.

HR7981 visual magnitude is 6.52. Because of its faintness, HR7981 is not visible to the naked eye.

DSS2 image of HR7981. The red arrow shows the motion of HR7981 during the next 10000 years (12.67 arcmin in Right Ascension and 2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 51m 46s

Declination +18° 08’ 50”

Hour Angle 17h 43m 45s

Sidereal Time 14h 35m 32s

J2000

Right Ascension 20h 50m 36s

Declination +18° 03’ 05”

Galactic Coordinates

Galactic Longitude 63.7°

Galactic Latitude -16.21°

Finder Chart

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Finder chart for HR7981.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.52

Class Main-sequence

Absolute magnitude 1.54

Spectral Type A1V

Color Index (B-V) 0.04

Temperature 9652K

The red dot in the diagram below shows where HR7981 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7981. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7981 is distant 323.09 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 99.11

Distance (light year) 323.09

Radial Speed 13 km/s

Proper Motion RA 0.076 arcsec/y

Proper Motion Dec 0.016"/y

Alternative Designations

Henry Draper Catalogue HD198552

SAO Catalogue SAO106562

Hipparcos Catalogue HIP102878

Durchmusterung Catalogue BD+17 4431

Visibility from Your Location

Today's HR7981 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 71.9° RISE 22:12

Max altitude: 56.7° TRANSIT 5:51

Azimuth: 288.1° SET 13:26

Set Location

Other stars in Delphinus