θ Librae (theta Librae)

Below the horizon. Rise: 17:39 | Tran: 22:35 | Set: 3:27

Alt: -20.30° Az: 94.29° Direction: South

θ Librae is a giant star of spectral class G8 in the constellation of Libra.

θ Librae visual magnitude is 4.15. Because of its moderate brightness, θ Librae 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.

DSS2 image of θ Librae. The red arrow shows the motion of θ Librae during the next 1000 years (1.65 arcmin in Right Ascension and 2.22 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 55m 16s

Declination -16° 48’ 11”

Hour Angle 17h 10m 42s

Sidereal Time 09h 05m 59s

J2000

Right Ascension 15h 53m 49s

Declination -16° 43’ 45”

Galactic Coordinates

Galactic Longitude 353.54°

Galactic Latitude 27.72°

Finder Chart

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Finder chart for θ Librae (theta Librae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.15

Class Giant

Absolute magnitude 0.66

Spectral Type G8III

Color Index (B-V) 1.02

Temperature 4695K

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

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

Distance, Radial Speed, Proper Motion

θ Librae is distant 162.84 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 49.95

Distance (light year) 162.84

Radial Speed 3 km/s

Proper Motion RA 0.099 arcsec/y

Proper Motion Dec 0.133"/y

Alternative Designations

Bayer designation θ Librae
(theta Librae)

Flamsteed designation 46 Librae

Henry Draper Catalogue HD142198

SAO Catalogue SAO159563

Hipparcos Catalogue HIP77853

Durchmusterung Catalogue BD-16 4174

Visibility from Your Location

Today's θ Librae (theta Librae) rise, transit and set times from Wells Beach Station, United States are the following (all times relative to the local timezone America/New_York):

Azimuth: 106.8° RISE 17:39

Max altitude: 29.9° TRANSIT 22:35

Azimuth: 253.2° SET 3:27

Name:	Wells Beach Station, United States
Latitude:	43° 19' 26.4" N
Longitude:	70° 35' 29.0" W
Timezone:	America/New_York

Set Location

Other stars in Libra