HR2971

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:

Color of HR2971 ⬤

Magnitude of HR2971 6.06

Class Sub-giant

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

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:

Right Ascension J2000 07h 39m 00s

Declination J2000 -53° 16’ 23”

Galactic Longitude 265.68°

Galactic Latitude -14.82°

Constellation Carina

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

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.

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.

Distance (parsec) 166.94 pc

Distance (light year) 544.24 ly

Heliocentric radial velocity 12 km/s

Proper Motion RA -0.009 arcsec/year

Proper Motion Dec 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.

Absolute magnitude -0.05

Spectral Type B9IV

Color Index (B-V) -0.11

Temperature of HR2971 11744K

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

Main star magnitude 6.06

Secondary star magnitude 13.86

Magnitude difference 7.8

Separation 15 arcsec

Alternative designations of HR2971

Henry Draper Catalogue HD61966

SAO Catalogue SAO235391

Hipparcos Catalogue HIP37248

Durchmusterung Catalogue CP-52 1242

General Catalogue of Variable Stars V390 Car

In Evidence

Other stars in Carina