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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:46 
Transit: 12:58 
Sunset: 21:11
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All Constellations » Lupus » 

φ1 Lupi (phi1 Lupi)

Below the horizon.  Rise: 21:52 | Tran: 23:21 | Set: 0:50
Alt: -9.96°   Az: 138.22°   Direction: South-East

φ1 Lupi is a multiple giant star of spectral class K5 in the constellation of Lupus.

φ1 Lupi visual magnitude is 3.56. Because of its moderate brightness, φ1 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.

Image of φ1 Lupi (phi1 Lupi) star
DSS2 image of φ1 Lupi. The red arrow shows the motion of φ1 Lupi during the next 10000 years (-14.83 arcmin in Right Ascension and -14.00 arcmin in declination);

Celestial Coordinates

Apparent

15h 23m 25s
-36° 21’ 04”
20h 21m 43s
11h 45m 09s

J2000

15h 21m 48s
-36° 15’ 41”

Galactic Coordinates

333.96°
17.39°

Finder Chart

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Finder chart for φ1 Lupi (phi1 Lupi).

Magnitude, Color, Spectral Class

3.56
Giant

-1.44
K5III
3734K

The red dot in the diagram below shows where φ1 Lupi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of φ1 Lupi. Attribution: Richard Powell / CC BY-SA

Star System Properties

φ1 Lupi is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the φ1 Lupi double sysyem:

3.56
14.46
10.9
17.3 arcsec

Distance, Radial Speed, Proper Motion

φ1 Lupi is distant 326.33 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

100.10
326.33
-29 km/s
-0.089 arcsec/y
-0.084"/y

Alternative Designations

φ1 Lupi
(phi1 Lupi)
SAO206552
SAO206552

Visibility from Your Location

Today's φ1 Lupi (phi1 Lupi) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 126.4°
Max altitude: 2.2°
Azimuth: 233.6°