φ2 Lupi (phi2 Lupi)

Below the horizon. Rise: 22:57 | Tran: 0:13 | Set: 1:33

Alt: -14.22° Az: 227.36° Direction: South-West

φ2 Lupi is a main-sequence star of spectral class B4 in the constellation of Lupus.

φ2 Lupi visual magnitude is 4.54. Because of its moderate brightness, φ2 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 φ2 Lupi. The red arrow shows the motion of φ2 Lupi during the next 10000 years (-3.00 arcmin in Right Ascension and -3.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 24m 47s

Declination -36° 56’ 51”

Hour Angle 04h 12m 39s

Sidereal Time 19h 37m 26s

J2000

Right Ascension 15h 23m 09s

Declination -36° 51’ 30”

Galactic Coordinates

Galactic Longitude 333.84°

Galactic Latitude 16.75°

Finder Chart

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Finder chart for φ2 Lupi (phi2 Lupi).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.54

Class Main-sequence

Absolute magnitude -1.81

Spectral Type B4V

Color Index (B-V) -0.15

Temperature 12489K

The red dot in the diagram below shows where φ2 Lupi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of φ2 Lupi. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

φ2 Lupi is distant 605.95 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 185.87

Distance (light year) 605.95

Radial Speed 2 km/s

Proper Motion RA -0.018 arcsec/y

Proper Motion Dec -0.023"/y

Alternative Designations

Bayer designation φ2 Lupi
(phi2 Lupi)

Henry Draper Catalogue HD136664

SAO Catalogue SAO206580

Hipparcos Catalogue HIP75304

Durchmusterung Catalogue CD-3610103

FK5 Catalogue 1403

Visibility from Your Location

Today's φ2 Lupi (phi2 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 22:57

Max altitude: 1.6° TRANSIT 0:13

Azimuth: 233.1° SET 1:33

Set Location

Other stars in Lupus