θ Carinae (theta Carinae)

θ Carinae is a hypergiant star in the constellation of Carina.

θ Carinae visual magnitude is 2.76. Thanks to its high brightness, θ Carinae is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.

The table below summarizes the key facts about θ Carinae:

Color of θ Carinae ⬤

Magnitude of θ Carinae 2.76

Class Hypergiant

VISIBILITY RIGHT NOW θ Carinae (theta Carinae) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of θ Carinae

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

Right Ascension J2000 10h 42m 57s

Declination J2000 -64° 23’ 39”

Galactic Longitude 289.6°

Galactic Latitude -4.9°

Constellation Carina

The simplified sky map below shows the position of θ Carinae in the sky:

Finder chart θ Carinae (theta Carinae) star

Simplified finder chart for θ Carinae (theta Carinae).

Visibility of θ Carinae from your location

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

θ Carinae (theta Carinae) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of θ Carinae

The image below is a photograph of θ Carinae 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 θ Carinae is -0.023 arcsec per year in Right Ascension and 0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of θ Carinae. The red arrow shows the motion of θ Carinae during the next 10000 years (-3.83 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of θ Carinae from the Sun and relative movement

θ Carinae is distant 438.76 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

Distance (parsec) 134.59 pc

Distance (light year) 438.76 ly

Heliocentric radial velocity 24 km/s

Proper Motion RA -0.023 arcsec/year

Proper Motion Dec 0.01 arcsec/year

Spectral properties of θ Carinae

θ Carinae belongs to spectral class B0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude -2.89

Spectral Type B0V

Color Index (B-V) -0.22

Temperature of θ Carinae 14087K

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

H-R diagram showing the position of θ Carinae. Attribution: Richard Powell / CC BY-SA

Alternative designations of θ Carinae

Bayer designation θ Carinae
(theta Carinae)

Henry Draper Catalogue HD93030

SAO Catalogue SAO251083

Hipparcos Catalogue HIP52419

Durchmusterung Catalogue CP-63 1599

FK5 Catalogue 406

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In Evidence

Other stars in Carina