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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:52 
Transit: 12:57 
Sunset: 21:03
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All Constellations » Cassiopeia » 

HR839

Above the horizon.  Circumpolar today
Alt: 80.04°   Az: 41.01°   Direction: North-East

HR839 is a double star of spectral class A1 in the constellation of Cassiopeia.

HR839 visual magnitude is 6.45. Because of its faintness, HR839 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 HR839 star
DSS2 image of HR839. The red arrow shows the motion of HR839 during the next 10000 years (-11.00 arcmin in Right Ascension and 2.50 arcmin in declination);

Celestial Coordinates

Apparent

02h 53m 41s
+58° 25’ 04”
23h 09m 56s
02h 03m 37s

J2000

02h 51m 45s
+58° 18’ 52”

Galactic Coordinates

138.2°
-0.94°

Finder Chart

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Finder chart for HR839.

Magnitude, Color, Spectral Class

6.45

1.74
A1
9028K

The red dot in the diagram below shows where HR839 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR839. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR839 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR839 double sysyem:

6.45
9.25
2.8
192.7 arcsec

Distance, Radial Speed, Proper Motion

HR839 is distant 284.97 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

87.41
284.97
-5 km/s
-0.066 arcsec/y
0.015"/y

Alternative Designations

SAO23662
SAO23662

Visibility from Your Location

HR839 is circumpolar and transits at 10:24 UTC (altitude: 83.1°)