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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: 7:41  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
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All Constellations » Lepus » 

Arneb - α Leporis (alpha Leporis)

Altitude: 17.7°   Azimuth: 203.7°   Direction: South-South-West

Arneb, also designated as α Leporis (alpha Leporis), is a variable and multiple hypergiant star in the constellation of Lepus.

Arneb visual magnitude is 2.58, making it the 97th brightest star in the sky. Thanks to its high brightness, Arneb is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.

The table below summarizes the key facts about Arneb:


Arneb - α Leporis (alpha Leporis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 17.7°
Azimuth: 203.7°
Direction: South-South-West

Celestial coordinates and finder chart of Arneb

Arneb is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Arneb are provided in the following table:

05h 32m 43s
-17° 49’ 19”

The simplified sky map below shows the position of Arneb in the sky:

Finder chart Arneb - α Leporis (alpha Leporis) star
Simplified finder chart for Arneb - α Leporis (alpha Leporis).

Visibility of Arneb from your location

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

Today's Arneb - α Leporis (alpha Leporis) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.8°
Max altitude: 20.7°
Azimuth: 252.2°

Digitized Sky Survey image of Arneb

The image below is a photograph of Arneb 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 Arneb is 0.001 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of Arneb - α Leporis (alpha Leporis) star
DSS2 image of Arneb. The red arrow shows the motion of Arneb during the next 100000 years (1.67 arcmin in Right Ascension and 3.33 arcmin in declination);

Distance of Arneb from the Sun and relative movement

Arneb is distant 1,283.46 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

393.70 pc
1,283.46 ly
24 km/s
0.001 arcsec/year
0.002 arcsec/year

Spectral properties of Arneb

Arneb belongs to spectral class F0 and has a luminosity class of I corresponding to a hypergiant star.


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

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

Arneb star system properties

Arneb 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 Arneb double sysyem:

35.8 arcsec

Alternative designations of Arneb

α Leporis
(alpha Leporis)