θ Lupi (theta Lupi)

Below the horizon. Rise: 21:37 | Tran: 22:55 | Set: 0:12

Alt: -58.11° Az: 78.72° Direction: South-West

θ Lupi is a main-sequence star of spectral class B2 in the constellation of Lupus.

θ Lupi visual magnitude is 4.23. Because of its moderate brightness, θ Lupi 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 Lupi. The red arrow shows the motion of θ Lupi during the next 10000 years (-2.83 arcmin in Right Ascension and -4.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 08m 16s

Declination -36° 52’ 08”

Hour Angle 14h 41m 25s

Sidereal Time 06h 49m 42s

J2000

Right Ascension 16h 06m 35s

Declination -36° 48’ 07”

Galactic Coordinates

Galactic Longitude 340.83°

Galactic Latitude 11.32°

Finder Chart

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Finder chart for θ Lupi (theta Lupi).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.23

Class Main-sequence

Absolute magnitude -1.27

Spectral Type B2V

Color Index (B-V) -0.17

Temperature 12902K

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

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

Distance, Radial Speed, Proper Motion

θ Lupi is distant 410.58 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

Distance (parsec) 125.94

Distance (light year) 410.58

Radial Speed 15 km/s

Proper Motion RA -0.017 arcsec/y

Proper Motion Dec -0.029"/y

Alternative Designations

Bayer designation θ Lupi
(theta Lupi)

Henry Draper Catalogue HD144294

SAO Catalogue SAO207332

Hipparcos Catalogue HIP78918

Durchmusterung Catalogue CD-3610642

FK5 Catalogue 599

Visibility from Your Location

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

Azimuth: 126.9° RISE 21:37

Max altitude: 1.7° TRANSIT 22:55

Azimuth: 233.1° SET 0:12

Set Location

Other stars in Lupus