4 Librae

Above the horizon. Rise: 18:04 | Tran: 21:39 | Set: 1:18

Alt: 11.10° Az: 199.83° Direction: South-West

4 Librae is a star of spectral class B9 in the constellation of Libra.

4 Librae visual magnitude is 5.73. Because of its faintness, 4 Librae is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

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);

Celestial Coordinates

Apparent

Right Ascension 14h 44m 42s

Declination -25° 06’ 16”

Hour Angle 01h 26m 16s

Sidereal Time 16h 10m 59s

J2000

Right Ascension 14h 43m 13s

Declination -24° 59’ 50”

Galactic Coordinates

Galactic Longitude 332.75°

Galactic Latitude 31.32°

Finder Chart

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Finder chart for 4 Librae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.73

Class

Absolute magnitude 0.24

Spectral Type B9

Color Index (B-V) -0.01

Temperature 10252K

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

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

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 125.47

Distance (light year) 409.03

Radial Speed -4 km/s

Proper Motion RA -0.019 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Flamsteed designation 4 Librae

Henry Draper Catalogue HD129433

SAO Catalogue SAO182795

Hipparcos Catalogue HIP71974

Durchmusterung Catalogue CD-2411637

Visibility from Your Location

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

Azimuth: 115.1° RISE 18:04

Max altitude: 13.4° TRANSIT 21:39

Azimuth: 244.9° SET 1:18

Set Location

Other stars in Libra