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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: 7:41  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
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All Constellations » Carina » 

θ Carinae (theta Carinae)

Altitude: -27.5°   Azimuth: 168.0°   Direction: South-South-East

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:


θ Carinae (theta Carinae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -27.5°
Azimuth: 168.0°
Direction: South-South-East

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 hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of θ Carinae are provided in the following table:

10h 42m 57s
-64° 23’ 39”

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 edit_location_alt
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 edit_location_alt

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.

Image of θ Carinae (theta Carinae) star
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.

134.59 pc
438.76 ly
24 km/s
-0.023 arcsec/year
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.


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

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

Alternative designations of θ Carinae

θ Carinae
(theta Carinae)