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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:09 
Transit: 11:43 
Sunset: 16:18
wb_twilight   (Nautical Twilight)  
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All Constellations » Centaurus » 

HR4975

Below the horizon.  Never rises today
Alt: -50.51°   Az: 228.45°   Direction: South-West

HR4975 is a variable and multiple main-sequence star of spectral class B8 in the constellation of Centaurus.

HR4975 visual magnitude is 4.6. Because of its moderate brightness, HR4975 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 HR4975 star
DSS2 image of HR4975. The red arrow shows the motion of HR4975 during the next 10000 years (-8.17 arcmin in Right Ascension and -4.00 arcmin in declination);

Celestial Coordinates

Apparent

13h 13m 51s
-60° 03’ 08”
07h 10m 15s
20h 24m 06s

J2000

13h 12m 17s
-59° 55’ 14”

Galactic Coordinates

305.55°
2.85°

Finder Chart

Finder chart HR4975 star
Simplified finder chart for HR4975.

Magnitude, Color, Spectral Class

4.6
Main-sequence

-0.53
B8V
11247K

The red dot in the diagram below shows where HR4975 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4975. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4975 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 HR4975 double sysyem:

4.6
5
0.4
0.1 arcsec

Distance, Radial Speed, Proper Motion

HR4975 is distant 346.07 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

106.16
346.07
12 km/s
-0.049 arcsec/y
-0.024"/y

Alternative Designations

SAO240645
SAO240645

Visibility from Your Location

HR4975 is currently not visible from Greenwich, UK