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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
All Constellations » Cepheus » 

HR20

Above the horizon.  Circumpolar today
Alt: 45.18°   Az: 347.99°   Direction: North-North-West

HR20 is a double sub-giant star of spectral class A7 in the constellation of Cepheus.

HR20 visual magnitude is 6.01. Because of its faintness, HR20 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 HR20 star
DSS2 image of HR20. The red arrow shows the motion of HR20 during the next 1000 years (1.70 arcmin in Right Ascension and -0.45 arcmin in declination);

Celestial Coordinates

Apparent

00h 10m 43s
+79° 51’ 04”
08h 14m 38s
08h 25m 22s

J2000

00h 09m 20s
+79° 42’ 52”

Galactic Coordinates

120.98°
17°

Finder Chart

Finder chart HR20 star
Simplified finder chart for HR20.

Magnitude, Color, Spectral Class

6.01
Sub-giant

0.67
A7IV
8241K

The red dot in the diagram below shows where HR20 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR20. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR20 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR20 double sysyem:

6.01
6.21
0.2
0.6 arcsec

Distance, Radial Speed, Proper Motion

HR20 is distant 380.84 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

116.82
380.84
1 km/s
0.102 arcsec/y
-0.027"/y

Alternative Designations

SAO4048
SAO4048

Visibility from Your Location

HR20 is circumpolar and transits at 04:01 UTC (altitude: 61.6°)