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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Lynx » 


Altitude: 19.8°   Azimuth: 324.9°   Direction: North-West

HR2939 is a hypergiant star in the constellation of Lynx.

HR2939 visual magnitude is 5.56. Because of its reltive faintness, HR2939 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR2939 is -0.054 arcsec per year in Right Ascension and -0.128 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR2939 star
DSS2 image of HR2939. The red arrow shows the motion of HR2939 during the next 1000 years (-0.90 arcmin in Right Ascension and -2.13 arcmin in declination);

Key facts about HR2939


HR2939 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 19.8°
Azimuth: 324.9°
Direction: North-West

Celestial coordinates and finder chart of HR2939

HR2939 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2939 are provided in the following table:

07h 41m 12s
+48° 07’ 54”

The simplified sky map below shows the position of HR2939 in the sky:

Finder chart HR2939 star
Simplified finder chart for HR2939.

Visibility of HR2939 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR2939 is circumpolar and transits at 20:44 UTC (altitude: 86.7°)

Distance of HR2939 from the Sun and relative movement

HR2939 is distant 325.67 light years from the Sun and it is moving far from the Sun at the speed of 40 kilometers per second.

99.90 pc
325.67 ly
40 km/s
-0.054 arcsec/year
-0.128 arcsec/year

Spectral properties of HR2939

HR2939 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR2939 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2939. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2939