π1 Gruis (pi1 Gruis)

Below the horizon. Never rises today

Alt: -52.32° Az: 255.09° Direction: West-South-West

π1 Gruis is a variable and double star of spectral class S5 in the constellation of Grus.

π1 Gruis visual magnitude is 6.62. Because of its faintness, π1 Gruis is not visible to the naked eye.

DSS2 image of π1 Gruis. The red arrow shows the motion of π1 Gruis during the next 10000 years (1.17 arcmin in Right Ascension and -2.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 24m 16s

Declination -45° 49’ 07”

Hour Angle 08h 08m 12s

Sidereal Time 06h 32m 29s

J2000

Right Ascension 22h 22m 43s

Declination -45° 56’ 52”

Galactic Coordinates

Galactic Longitude 350.28°

Galactic Latitude -55.16°

Finder Chart

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Finder chart for π1 Gruis (pi1 Gruis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.62

Class

Absolute magnitude 0.70

Spectral Type S5

Color Index (B-V) 2.01

Temperature 3159K

The red dot in the diagram below shows where π1 Gruis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of π1 Gruis. Attribution: Richard Powell / CC BY-SA

Star System Properties

π1 Gruis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the π1 Gruis double sysyem:

Main star magnitude 6.62

Secondary star magnitude 10.92

Magnitude difference 4.3

Separation 2.7 arcsec

Distance, Radial Speed, Proper Motion

π1 Gruis is distant 498.47 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 152.91

Distance (light year) 498.47

Radial Speed -20 km/s

Proper Motion RA 0.007 arcsec/y

Proper Motion Dec -0.012"/y

Alternative Designations

Bayer designation π1 Gruis
(pi1 Gruis)

Henry Draper Catalogue HD212087

SAO Catalogue SAO231105

Hipparcos Catalogue HIP110478

Durchmusterung Catalogue CD-4614292

General Catalogue of Variable Stars Pi1 Gru

Visibility from Your Location

π1 Gruis (pi1 Gruis) is currently not visible from Greenwich, UK

Set Location

Other stars in Grus