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🌎  Greenwich, United Kingdom [change]

δ2 Gruis (delta2 Gruis)

δ2 Gruis is a variable and double giant star in the constellation of Grus.

δ2 Gruis visual magnitude is 4.11. Because of its moderate brightness, δ2 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 δ2 Gruis:

4.11
Giant
δ2 Gruis (delta2 Gruis) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of δ2 Gruis

δ2 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 δ2 Gruis are provided in the following table:

22h 29m 45s
-43° 44’ 57”
353.28°
-57.06°
Grus

The simplified sky map below shows the position of δ2 Gruis in the sky:

Finder chart δ2 Gruis (delta2 Gruis) star
Simplified finder chart for δ2 Gruis (delta2 Gruis).

Visibility of δ2 Gruis from your location

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

δ2 Gruis (delta2 Gruis) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of δ2 Gruis

The image below is a photograph of δ2 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 δ2 Gruis is -0.007 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of δ2 Gruis (delta2 Gruis) star
DSS2 image of δ2 Gruis. The red arrow shows the motion of δ2 Gruis during the next 100000 years (-11.67 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of δ2 Gruis from the Sun and relative movement

δ2 Gruis is distant 324.70 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

99.60 pc
324.70 ly
2 km/s
-0.007 arcsec/year

Spectral properties of δ2 Gruis

δ2 Gruis belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.

-0.88
M4III
3691K

The red dot in the diagram below shows where δ2 Gruis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of δ2 Gruis. Attribution: Richard Powell / CC BY-SA

δ2 Gruis star system properties

δ2 Gruis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the δ2 Gruis double sysyem:

4.11
8.81
4.7
60.6 arcsec

Alternative designations of δ2 Gruis

δ2 Gruis
(delta2 Gruis)
SAO231161
SAO231161