δ2 Gruis (delta2 Gruis)

Below the horizon. Never rises today

Alt: -27.76° Az: 233.80° Direction: South-West

δ2 Gruis is a variable and double giant star of spectral class M4 in the constellation of Grus.

δ2 Gruis visual magnitude is 4.11. Because of its moderate brightness, δ2 Gruis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

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);

Celestial Coordinates

Apparent

Right Ascension 22h 31m 16s

Declination -43° 37’ 06”

Hour Angle 05h 22m 11s

Sidereal Time 03h 53m 28s

J2000

Right Ascension 22h 29m 45s

Declination -43° 44’ 57”

Galactic Coordinates

Galactic Longitude 353.28°

Galactic Latitude -57.06°

Finder Chart

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Finder chart for δ2 Gruis (delta2 Gruis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.11

Class Giant

Absolute magnitude -0.88

Spectral Type M4III

Color Index (B-V) 1.57

Temperature 3691K

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

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

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:

Main star magnitude 4.11

Secondary star magnitude 8.81

Magnitude difference 4.7

Separation 60.6 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 99.60

Distance (light year) 324.70

Radial Speed 2 km/s

Proper Motion RA -0.007 arcsec/y

Alternative Designations

Bayer designation δ2 Gruis
(delta2 Gruis)

Henry Draper Catalogue HD213080

SAO Catalogue SAO231161

Hipparcos Catalogue HIP111043

Durchmusterung Catalogue CD-4414935

General Catalogue of Variable Stars Del2 Gru

Visibility from Your Location

δ2 Gruis (delta2 Gruis) is currently not visible from Greenwich, UK

Set Location

Other stars in Grus