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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Columba » 


Altitude: -40.1°   Azimuth: 96.5°   Direction: East

HR2131 is a giant star in the constellation of Columba.

HR2131 visual magnitude is 5.55. Because of its reltive faintness, HR2131 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 HR2131 is 0.015 arcsec per year in Right Ascension and -0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR2131 star
DSS2 image of HR2131. The red arrow shows the motion of HR2131 during the next 10000 years (2.50 arcmin in Right Ascension and -3.33 arcmin in declination);

Key facts about HR2131


HR2131 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -40.1°
Azimuth: 96.5°
Direction: East

Celestial coordinates and finder chart of HR2131

HR2131 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2131 are provided in the following table:

06h 01m 16s
-33° 54’ 42”

The simplified sky map below shows the position of HR2131 in the sky:

Finder chart HR2131 star
Simplified finder chart for HR2131.

Visibility of HR2131 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 HR2131 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: 123.9°
Max altitude: 4.6°
Azimuth: 236.1°

Distance of HR2131 from the Sun and relative movement

HR2131 is distant 555.37 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

170.36 pc
555.37 ly
19 km/s
0.015 arcsec/year
-0.02 arcsec/year

Spectral properties of HR2131

HR2131 belongs to spectral class K5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR2131 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR2131. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2131