Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
warning Set your observing location to get relevant data
wb_twilight   (Civil Twilight)  
Planets Visible Tonight
Planets Visible Tonight
 • 
What's Visible Now • Tonight Sky
Search  close
All Constellations » Cassiopeia » 

HR8990

Above the horizon.  Circumpolar today
Alt: 53.37°   Az: 46.96°   Direction: North-East

HR8990 is a double giant star of spectral class K2 in the constellation of Cassiopeia.

HR8990 visual magnitude is 6.4. Because of its faintness, HR8990 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.

Image of HR8990 star
DSS2 image of HR8990. The red arrow shows the motion of HR8990 during the next 10000 years (7.17 arcmin in Right Ascension and -3.50 arcmin in declination);

Celestial Coordinates

Apparent

23h 43m 44s
+61° 49’ 13”
19h 30m 17s
19h 14m 02s

J2000

23h 42m 31s
+61° 40’ 45”

Galactic Coordinates

114.85°
-0.11°

Finder Chart

loader
  Loading map...
Finder chart for HR8990.

Magnitude, Color, Spectral Class

6.4
Giant

0.66
K2III
4232K

The red dot in the diagram below shows where HR8990 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8990. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR8990 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR8990 double sysyem:

6.4
12.9
6.5
8 arcsec

Distance, Radial Speed, Proper Motion

HR8990 is distant 459.15 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

140.85
459.15
-16 km/s
0.043 arcsec/y
-0.021"/y

Alternative Designations

SAO20793
SAO20793

Visibility from Your Location

HR8990 is circumpolar and transits at 08:02 UTC (altitude: 79.7°)