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🌎  Greenwich, United Kingdom [change]

θ Gruis (theta Gruis)

θ Gruis is a multiple star in the constellation of Grus.

θ Gruis visual magnitude is 4.28. Because of its moderate brightness, θ Gruis 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 Gruis:

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

Celestial coordinates and finder chart of θ Gruis

θ Gruis 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 Gruis are provided in the following table:

23h 06m 52s
-43° 31’ 14”

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

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

Visibility of θ Gruis from your location

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

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

Digitized Sky Survey image of θ Gruis

The image below is a photograph of θ Gruis 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 Gruis is -0.039 arcsec per year in Right Ascension and -0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of θ Gruis (theta Gruis) star
DSS2 image of θ Gruis. The red arrow shows the motion of θ Gruis during the next 10000 years (-6.50 arcmin in Right Ascension and -3.83 arcmin in declination);

Distance of θ Gruis from the Sun and relative movement

θ Gruis is distant 133.01 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

40.80 pc
133.01 ly
10 km/s
-0.039 arcsec/year
-0.023 arcsec/year

Spectral properties of θ Gruis

θ Gruis belongs to spectral class F5


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

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

θ Gruis star system properties

θ Gruis is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the θ Gruis double sysyem:

1.2 arcsec

Alternative designations of θ Gruis

θ Gruis
(theta Gruis)