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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
north SunriseRise: 7:50  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Libra » 

23 Librae

Altitude: -44.5°   Azimuth: 285.8°   Direction: West-North-West

23 Librae is a main-sequence star in the constellation of Libra.

23 Librae visual magnitude is 6.45. Because of its reltive faintness, 23 Librae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 23 Librae:


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

Altitude: -44.5°
Azimuth: 285.8°
Direction: West-North-West

Celestial coordinates and finder chart of 23 Librae

23 Librae is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 23 Librae are provided in the following table:

15h 13m 28s
-25° 18’ 33”

The simplified sky map below shows the position of 23 Librae in the sky:

Finder chart 23 Librae star
Simplified finder chart for 23 Librae.

Visibility of 23 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 23 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: 115.3°
Max altitude: 13.2°
Azimuth: 244.7°

Digitized Sky Survey image of 23 Librae

The image below is a photograph of 23 Librae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 23 Librae is -0.398 arcsec per year in Right Ascension and -0.071 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 23 Librae star
DSS2 image of 23 Librae. The red arrow shows the motion of 23 Librae during the next 1000 years (-6.63 arcmin in Right Ascension and -1.18 arcmin in declination);

Distance of 23 Librae from the Sun and relative movement

23 Librae is distant 83.63 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

25.65 pc
83.63 ly
3 km/s
-0.398 arcsec/year
-0.071 arcsec/year

Spectral properties of 23 Librae

23 Librae belongs to spectral class G4 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 23 Librae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 23 Librae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 23 Librae

Gl 579.4