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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:14 
Transit: 12:14 
Sunset: 17:14
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All Constellations » Centaurus » 

HR5172

Below the horizon.  Never rises today
Alt: -21.50°   Az: 211.04°   Direction: South-South-West

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.

Image of HR5172 star
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

13h 48m 15s
-51° 33’ 27”
03h 21m 58s
17h 10m 14s

J2000

13h 46m 39s
-51° 25’ 58”

Galactic Coordinates

311.63°
10.5°

Finder Chart

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  Loading map...
Finder chart for HR5172.

Magnitude, Color, Spectral Class

4.65
Giant

0.17
G8III
4841K

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

HR 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:

4.65
10.95
6.3
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.

78.86
257.10
-6 km/s
0.006 arcsec/y
-0.033"/y

Alternative Designations

SAO241157
SAO241157

Visibility from Your Location

HR5172 is currently not visible from Greenwich, UK