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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
sunny   (Daytime)   What's Visible Now?
All Constellations » Centaurus » 

HR4940

Below the horizon.  Never rises today
Alt: -65.22°   Az: 98.74°   Direction: East

HR4940 is a double main-sequence star of spectral class B5 in the constellation of Centaurus.

HR4940 visual magnitude is 4.71. Because of its moderate brightness, HR4940 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 HR4940 star
DSS2 image of HR4940. The red arrow shows the motion of HR4940 during the next 10000 years (-5.00 arcmin in Right Ascension and -3.83 arcmin in declination);

Celestial Coordinates

Apparent

13h 07m 42s
-48° 35’ 40”
14h 35m 05s
03h 42m 48s

J2000

13h 06m 16s
-48° 27’ 48”

Galactic Coordinates

305.47°
14.34°

Finder Chart

Finder chart HR4940 star
Simplified finder chart for HR4940.

Magnitude, Color, Spectral Class

4.71
Main-sequence

-0.81
B5V
12293K

The red dot in the diagram below shows where HR4940 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4940. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4940 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 HR4940 double sysyem:

4.71
11.21
6.5
11.4 arcsec

Distance, Radial Speed, Proper Motion

HR4940 is distant 413.71 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

126.90
413.71
6 km/s
-0.03 arcsec/y
-0.023"/y

Alternative Designations

SAO223900
SAO223900

Visibility from Your Location

HR4940 is currently not visible from Greenwich, UK