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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:48  
clear_day Transit: 12:11  
SunsetSet: 17:34
sunny DaytimeWhat's Visible Now?
All Constellations » Libra » 

4 Librae

Altitude: -45.5°   Azimuth: 288.1°   Direction: West-North-West

4 Librae is a star in the constellation of Libra.

4 Librae visual magnitude is 5.73. Because of its reltive faintness, 4 Librae should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 4 Librae is -0.019 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 4 Librae star
DSS2 image of 4 Librae. The red arrow shows the motion of 4 Librae during the next 10000 years (-3.17 arcmin in Right Ascension and -0.17 arcmin in declination);

Key facts about 4 Librae

5.73

4 Librae is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -45.5°
Azimuth: 288.1°
Direction: West-North-West

Celestial coordinates and finder chart of 4 Librae

4 Librae is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 4 Librae are provided in the following table:

14h 43m 13s
-24° 59’ 50”
332.75°
31.32°
Libra

The simplified sky map below shows the position of 4 Librae in the sky:

Finder chart 4 Librae star
Simplified finder chart for 4 Librae.

Visibility of 4 Librae from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 4 Librae rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 115.0°
Max altitude: 13.5°
Azimuth: 245.0°

Distance of 4 Librae from the Sun and relative movement

4 Librae is distant 409.03 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

125.47 pc
409.03 ly
-4 km/s
-0.019 arcsec/year
-0.001 arcsec/year

Spectral properties of 4 Librae

4 Librae belongs to spectral class B9

0.24
B9
10252K

The red dot in the diagram below shows where 4 Librae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 4 Librae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 4 Librae

SAO182795
SAO182795