HR5172

Below the horizon. Never rises today

Alt: -51.52° Az: 116.15° Direction: East-South-East

HR5172 is a variable and double giant star of spectral class G8 in the constellation of Centaurus.

HR5172 visual magnitude is 4.65. Because of its moderate brightness, HR5172 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 HR5172. The red arrow shows the motion of HR5172 during the next 10000 years (1.00 arcmin in Right Ascension and -5.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 48m 16s

Declination -51° 33’ 32”

Hour Angle 16h 15m 47s

Sidereal Time 06h 04m 04s

J2000

Right Ascension 13h 46m 39s

Declination -51° 25’ 58”

Galactic Coordinates

Galactic Longitude 311.63°

Galactic Latitude 10.5°

Finder Chart

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Finder chart for HR5172.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.65

Class Giant

Absolute magnitude 0.17

Spectral Type G8III

Color Index (B-V) 0.96

Temperature 4841K

The red dot in the diagram below shows where HR5172 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR5172. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR5172 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 HR5172 double sysyem:

Main star magnitude 4.65

Secondary star magnitude 10.95

Magnitude difference 6.3

Separation 40 arcsec

Distance, Radial Speed, Proper Motion

HR5172 is distant 257.10 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

Distance (parsec) 78.86

Distance (light year) 257.10

Radial Speed -6 km/s

Proper Motion RA 0.006 arcsec/y

Proper Motion Dec -0.033"/y

Alternative Designations

Henry Draper Catalogue HD119834

SAO Catalogue SAO241157

Hipparcos Catalogue HIP67234

Durchmusterung Catalogue CD-50 8017

General Catalogue of Variable Stars 6434

Visibility from Your Location

HR5172 is currently not visible from Greenwich, UK

Set Location

Other stars in Centaurus