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🌎  Greenwich, United Kingdom [change]

θ Chamaeleontis (theta Chamaeleontis)

θ Chamaeleontis is a double giant star in the constellation of Chamaeleon.

θ Chamaeleontis visual magnitude is 4.35. Because of its moderate brightness, θ Chamaeleontis should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about θ Chamaeleontis:

4.35
Giant
θ Chamaeleontis (theta Chamaeleontis) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of θ Chamaeleontis

θ Chamaeleontis is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of θ Chamaeleontis are provided in the following table:

08h 20m 38s
-77° 29’ 03”
290.46°
-21.84°
Chamaeleon

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

Finder chart θ Chamaeleontis (theta Chamaeleontis) star
Simplified finder chart for θ Chamaeleontis (theta Chamaeleontis).

Visibility of θ Chamaeleontis from your location

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

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

Digitized Sky Survey image of θ Chamaeleontis

The image below is a photograph of θ Chamaeleontis 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 Chamaeleontis is -0.134 arcsec per year in Right Ascension and 0.042 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of θ Chamaeleontis (theta Chamaeleontis) star
DSS2 image of θ Chamaeleontis. The red arrow shows the motion of θ Chamaeleontis during the next 1000 years (-2.23 arcmin in Right Ascension and 0.70 arcmin in declination);

Distance of θ Chamaeleontis from the Sun and relative movement

θ Chamaeleontis is distant 153.63 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.

47.13 pc
153.63 ly
22 km/s
-0.134 arcsec/year
0.042 arcsec/year

Spectral properties of θ Chamaeleontis

θ Chamaeleontis belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

0.98
K2III
4389K

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

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

θ Chamaeleontis star system properties

θ Chamaeleontis 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 θ Chamaeleontis double sysyem:

4.35
12.05
7.7
31 arcsec

Alternative designations of θ Chamaeleontis

θ Chamaeleontis
(theta Chamaeleontis)
SAO256503
SAO256503