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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: 7:52  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
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All Constellations » Carina » 


Altitude: -19.1°   Azimuth: 202.0°   Direction: South-South-West

HR2971 is a variable and double sub-giant star in the constellation of Carina.

HR2971 visual magnitude is 6.06. Because of its reltive faintness, HR2971 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 HR2971:


HR2971 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -19.1°
Azimuth: 202.0°
Direction: South-South-West

Celestial coordinates and finder chart of HR2971

HR2971 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 HR2971 are provided in the following table:

07h 39m 00s
-53° 16’ 23”

The simplified sky map below shows the position of HR2971 in the sky:

Finder chart HR2971 star
Simplified finder chart for HR2971.

Visibility of HR2971 from your location

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

HR2971 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2971

The image below is a photograph of HR2971 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 HR2971 is -0.009 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2971 star
DSS2 image of HR2971. The red arrow shows the motion of HR2971 during the next 100000 years (-15.00 arcmin in Right Ascension and 13.33 arcmin in declination);

Distance of HR2971 from the Sun and relative movement

HR2971 is distant 544.24 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

166.94 pc
544.24 ly
12 km/s
-0.009 arcsec/year
0.008 arcsec/year

Spectral properties of HR2971

HR2971 belongs to spectral class B9 and has a luminosity class of IV corresponding to a sub-giant star. HR2971 is also a Si chemically peculiar star.


The red dot in the diagram below shows where HR2971 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2971. Attribution: Richard Powell / CC BY-SA

HR2971 star system properties

HR2971 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR2971 double sysyem:

15 arcsec

Alternative designations of HR2971