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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:17 
Transit: 11:44 
Sunset: 16:10
sunny   (Daytime)  
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All Constellations » Centaurus » 

HR4817

Below the horizon.  Never rises today
Alt: -4.07°   Az: 198.55°   Direction: South-South-West

HR4817 is a variable bright giant star of spectral class B8 in the constellation of Centaurus.

HR4817 visual magnitude is 4.64. Because of its moderate brightness, HR4817 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 HR4817 star
DSS2 image of HR4817. The red arrow shows the motion of HR4817 during the next 10000 years (-7.83 arcmin in Right Ascension and -5.00 arcmin in declination);

Celestial Coordinates

Apparent

12h 41m 13s
-40° 07’ 25”
01h 38m 04s
14h 19m 18s

J2000

12h 39m 52s
-39° 59’ 14”

Galactic Coordinates

300.53°
22.83°

Finder Chart

Finder chart HR4817 star
Simplified finder chart for HR4817.

Magnitude, Color, Spectral Class

4.64
Bright giant

-0.54
B8II
11247K

The red dot in the diagram below shows where HR4817 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4817. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4817 is distant 354.73 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

108.81
354.73
15 km/s
-0.047 arcsec/y
-0.03"/y

Alternative Designations

SAO203681
SAO203681

Visibility from Your Location

HR4817 is currently not visible from Greenwich, UK