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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
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All Constellations » Lupus » 

κ1 Lupi (kappa1 Lupi)

Altitude: -20.5°   Azimuth: 215.1°   Direction: South-West

κ1 Lupi is a double main-sequence star in the constellation of Lupus.

κ1 Lupi visual magnitude is 3.87. Because of its moderate brightness, κ1 Lupi should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about κ1 Lupi:


κ1 Lupi (kappa1 Lupi) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -20.5°
Azimuth: 215.1°
Direction: South-West

Celestial coordinates and finder chart of κ1 Lupi

κ1 Lupi is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of κ1 Lupi are provided in the following table:

15h 11m 56s
-48° 44’ 16”

The simplified sky map below shows the position of κ1 Lupi in the sky:

Finder chart κ1 Lupi (kappa1 Lupi) star
Simplified finder chart for κ1 Lupi (kappa1 Lupi).

Visibility of κ1 Lupi from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

κ1 Lupi (kappa1 Lupi) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of κ1 Lupi

The image below is a photograph of κ1 Lupi from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of κ1 Lupi is -0.095 arcsec per year in Right Ascension and -0.049 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of κ1 Lupi (kappa1 Lupi) star
DSS2 image of κ1 Lupi. The red arrow shows the motion of κ1 Lupi during the next 1000 years (-1.58 arcmin in Right Ascension and -0.82 arcmin in declination);

Distance of κ1 Lupi from the Sun and relative movement

κ1 Lupi is distant 182.22 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

55.90 pc
182.22 ly
-6 km/s
-0.095 arcsec/year
-0.049 arcsec/year

Spectral properties of κ1 Lupi

κ1 Lupi belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where κ1 Lupi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of κ1 Lupi. Attribution: Richard Powell / CC BY-SA

κ1 Lupi star system properties

κ1 Lupi is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the κ1 Lupi double sysyem:

26.6 arcsec

Alternative designations of κ1 Lupi

κ1 Lupi
(kappa1 Lupi)