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public LocationGreenwich, UK
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
sunny   (Daytime)   What's Visible Now?
All Constellations » Auriga » 


Above the horizon.  Rise: 1:09 | Tran: 10:52 | Set: 20:35
Alt: 16.78°   Az: 303.31°   Direction: West-North-West

HR2139 is a star of spectral class B9 in the constellation of Auriga.

HR2139 visual magnitude is 6.23. Because of its faintness, HR2139 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 HR2139 star
DSS2 image of HR2139. The red arrow shows the motion of HR2139 during the next 10000 years (1.33 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates


06h 07m 11s
+33° 35’ 43”
07h 04m 32s
13h 11m 43s


06h 05m 34s
+33° 35’ 57”

Galactic Coordinates


Finder Chart

Finder chart HR2139 star
Simplified finder chart for HR2139.

Magnitude, Color, Spectral Class

HR2139 is also a Si chemically peculiar star.


The red dot in the diagram below shows where HR2139 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2139. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR2139 is distant 936.78 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

25 km/s
0.008 arcsec/y

Alternative Designations


Visibility from Your Location

Today's HR2139 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 56.4°
Max altitude: 72.1°
Azimuth: 303.6°