Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

γ Horologii (gamma Horologii)

γ Horologii is a double giant star in the constellation of Horologium.

γ Horologii visual magnitude is 5.74. Because of its reltive faintness, γ Horologii should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about γ Horologii:

5.74
Giant
γ Horologii (gamma Horologii) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of γ Horologii

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

02h 45m 27s
-63° 42’ 15”
284.11°
-49.05°
Horologium

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

Finder chart γ Horologii (gamma Horologii) star
Simplified finder chart for γ Horologii (gamma Horologii).

Visibility of γ Horologii from your location

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

γ Horologii (gamma Horologii) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of γ Horologii

The image below is a photograph of γ Horologii 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 γ Horologii is 0.022 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of γ Horologii (gamma Horologii) star
DSS2 image of γ Horologii. The red arrow shows the motion of γ Horologii during the next 10000 years (3.67 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of γ Horologii from the Sun and relative movement

γ Horologii is distant 178.83 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

54.85 pc
178.83 ly
-11 km/s
0.022 arcsec/year
-0.009 arcsec/year

Spectral properties of γ Horologii

γ Horologii belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

2.04
G8III
4917K

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

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

γ Horologii star system properties

γ Horologii 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 γ Horologii double sysyem:

5.74
13.04
7.3
20 arcsec

Alternative designations of γ Horologii

γ Horologii
(gamma Horologii)
SAO248642
SAO248642