HR7983

Below the horizon. Rise: 19:08 | Tran: 2:36 | Set: 10:08

Alt: -9.13° Az: 32.58° Direction: North-North-East

HR7983 is a double main-sequence star of spectral class B4 in the constellation of Cygnus.

HR7983 visual magnitude is 6.33. Because of its faintness, HR7983 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7983. The red arrow shows the motion of HR7983 during the next 100000 years (13.33 arcmin in Right Ascension and 0.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 50m 46s

Declination +46° 45’ 25”

Hour Angle 15h 23m 33s

Sidereal Time 12h 14m 20s

J2000

Right Ascension 20h 49m 54s

Declination +46° 39’ 39”

Galactic Coordinates

Galactic Longitude 86.28°

Galactic Latitude 1.71°

Finder Chart

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Finder chart for HR7983.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.33

Class Main-sequence

Absolute magnitude -0.92

Spectral Type B4V

Color Index (B-V) -0.07

Temperature 11092K

The red dot in the diagram below shows where HR7983 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7983. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7983 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 HR7983 double sysyem:

Main star magnitude 6.33

Secondary star magnitude 11.63

Magnitude difference 5.3

Separation 19.2 arcsec

Distance, Radial Speed, Proper Motion

HR7983 is distant 918.31 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 281.69

Distance (light year) 918.31

Radial Speed -15 km/s

Proper Motion RA 0.008 arcsec/y

Alternative Designations

Henry Draper Catalogue HD198625

SAO Catalogue SAO50119

Hipparcos Catalogue HIP102827

Durchmusterung Catalogue BD+46 3067

Aitken Double Star Catalogue ADS14350

Visibility from Your Location

Today's HR7983 rise, transit and set times from Yunlong, China are the following (all times relative to the local timezone Asia/Shanghai):

Azimuth: 43.2° RISE 19:08

Max altitude: 63.1° TRANSIT 2:36

Azimuth: 316.8° SET 10:08

Name:	Yunlong, China
Latitude:	19° 52' 35.8" N
Longitude:	110° 28' 1.2" E
Timezone:	Asia/Shanghai

Set Location

Other stars in Cygnus