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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
north SunriseRise: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sunny DaytimeWhat's Visible Now?
All Constellations » Auriga » 


Altitude: 2.6°   Azimuth: 338.6°   Direction: North-North-West

HR2137 is a multiple hypergiant star in the constellation of Auriga.

HR2137 visual magnitude is 6.34. Because of its reltive faintness, HR2137 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR2137:


HR2137 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 2.6°
Azimuth: 338.6°
Direction: North-North-West

Celestial coordinates and finder chart of HR2137

HR2137 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 HR2137 are provided in the following table:

06h 05m 02s
+37° 57’ 51”

The simplified sky map below shows the position of HR2137 in the sky:

Finder chart HR2137 star
Simplified finder chart for HR2137.

Visibility of HR2137 from your location

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

Today's HR2137 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 52.0°
Max altitude: 76.5°
Azimuth: 308.0°

Digitized Sky Survey image of HR2137

The image below is a photograph of HR2137 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR2137 is 0.003 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2137 star
DSS2 image of HR2137. The red arrow shows the motion of HR2137 during the next 100000 years (5.00 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of HR2137 from the Sun and relative movement

HR2137 is distant 754.63 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

231.48 pc
754.63 ly
5 km/s
0.003 arcsec/year
-0.007 arcsec/year

Spectral properties of HR2137

HR2137 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 HR2137 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2137. Attribution: Richard Powell / CC BY-SA

HR2137 star system properties

HR2137 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR2137 double sysyem:

17.9 arcsec

Alternative designations of HR2137