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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:11 
Transit: 13:06 
Sunset: 21:00
sunny   (Daytime)   What's Visible Now?
All Constellations » Lupus » 

HR5781

Below the horizon.  Never rises today
Alt: -81.91°   Az: 40.15°   Direction: North-East

HR5781 is a variable and double sub-giant star of spectral class B3 in the constellation of Lupus.

HR5781 visual magnitude is 4.54. Because of its moderate brightness, HR5781 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 HR5781 star
DSS2 image of HR5781. The red arrow shows the motion of HR5781 during the next 10000 years (-4.17 arcmin in Right Ascension and -5.00 arcmin in declination);

Celestial Coordinates

Apparent

15h 37m 35s
-45° 02’ 18”
12h 29m 31s
04h 07m 06s

J2000

15h 35m 53s
-44° 57’ 30”

Galactic Coordinates

331.02°
8.76°

Finder Chart

Finder chart HR5781 star
Simplified finder chart for HR5781.

Magnitude, Color, Spectral Class

4.54
Sub-giant

-1.08
B3IV
13121K

The red dot in the diagram below shows where HR5781 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5781. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR5781 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR5781 double sysyem:

4.54
6.44
1.9
2.4 arcsec

Distance, Radial Speed, Proper Motion

HR5781 is distant 434.09 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

133.16
434.09
7 km/s
-0.025 arcsec/y
-0.03"/y

Alternative Designations

SAO225950
SAO225950

Visibility from Your Location

HR5781 is currently not visible from Greenwich, UK