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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: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Carina » 


Altitude: -82.8°   Azimuth: 140.3°   Direction: South-East

HR3031 is a double hypergiant star in the constellation of Carina.

HR3031 visual magnitude is 6.12. Because of its reltive faintness, HR3031 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 HR3031:


HR3031 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -82.8°
Azimuth: 140.3°
Direction: South-East

Celestial coordinates and finder chart of HR3031

HR3031 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 HR3031 are provided in the following table:

07h 45m 35s
-56° 43’ 20”

The simplified sky map below shows the position of HR3031 in the sky:

Finder chart HR3031 star
Simplified finder chart for HR3031.

Visibility of HR3031 from your location

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

HR3031 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3031

The image below is a photograph of HR3031 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 HR3031 is 0.005 arcsec per year in Right Ascension and 0.016 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3031 star
DSS2 image of HR3031. The red arrow shows the motion of HR3031 during the next 10000 years (0.83 arcmin in Right Ascension and 2.67 arcmin in declination);

Distance of HR3031 from the Sun and relative movement

HR3031 is distant 942.20 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

289.02 pc
942.20 ly
19 km/s
0.005 arcsec/year
0.016 arcsec/year

Spectral properties of HR3031

HR3031 belongs to spectral class F0 and has a luminosity class of II corresponding to a hypergiant star.


The red dot in the diagram below shows where HR3031 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3031. Attribution: Richard Powell / CC BY-SA

HR3031 star system properties

HR3031 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 HR3031 double sysyem:

36.2 arcsec

Alternative designations of HR3031