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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
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
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All Constellations » Horologium » 

β Horologii (beta Horologii)

Altitude: -60.0°   Azimuth: 224.6°   Direction: South-West

β Horologii is a giant star in the constellation of Horologium.

β Horologii visual magnitude is 4.99. Because of its moderate brightness, β Horologii 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 proper motion of β Horologii is 0.022 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of β Horologii (beta Horologii) star
DSS2 image of β Horologii. The red arrow shows the motion of β Horologii during the next 10000 years (3.67 arcmin in Right Ascension and 0.17 arcmin in declination);

Key facts about β Horologii


β Horologii (beta Horologii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -60.0°
Azimuth: 224.6°
Direction: South-West

Celestial coordinates and finder chart of β Horologii

β Horologii 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 β Horologii are provided in the following table:

02h 58m 47s
-64° 04’ 17”

The simplified sky map below shows the position of β Horologii in the sky:

Finder chart β Horologii (beta Horologii) star
Simplified finder chart for β Horologii (beta Horologii).

Visibility of β Horologii from your location

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

β Horologii (beta Horologii) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of β Horologii from the Sun and relative movement

β Horologii is distant 313.46 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

96.15 pc
313.46 ly
24 km/s
0.022 arcsec/year
0.001 arcsec/year

Spectral properties of β Horologii

β Horologii belongs to spectral class A3 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of β Horologii

β Horologii
(beta Horologii)