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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: 5:41  
clear_day Transit: 12:56  
SunsetSet: 20:12
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All Constellations » Octans » 

γ1 Octantis (gamma1 Octantis)

Altitude: -59.4°   Azimuth: 178.7°   Direction: South

γ1 Octantis is a giant star in the constellation of Octans.

γ1 Octantis visual magnitude is 5.11. Because of its reltive faintness, γ1 Octantis should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of γ1 Octantis is -0.055 arcsec per year in Right Ascension and -0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of γ1 Octantis (gamma1 Octantis) star
DSS2 image of γ1 Octantis. The red arrow shows the motion of γ1 Octantis during the next 10000 years (-9.17 arcmin in Right Ascension and -3.17 arcmin in declination);

Key facts about γ1 Octantis

5.11
Giant

γ1 Octantis (gamma1 Octantis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -59.4°
Azimuth: 178.7°
Direction: South

Celestial coordinates and finder chart of γ1 Octantis

γ1 Octantis is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of γ1 Octantis are provided in the following table:

23h 52m 06s
-82° 01’ 08”
305.41°
-34.82°
Octans

The simplified sky map below shows the position of γ1 Octantis in the sky:

Finder chart γ1 Octantis (gamma1 Octantis) star
Simplified finder chart for γ1 Octantis (gamma1 Octantis).

Visibility of γ1 Octantis from your location

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

γ1 Octantis (gamma1 Octantis) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of γ1 Octantis from the Sun and relative movement

γ1 Octantis is distant 267.21 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

81.97 pc
267.21 ly
15 km/s
-0.055 arcsec/year
-0.019 arcsec/year

Spectral properties of γ1 Octantis

γ1 Octantis belongs to spectral class G7 and has a luminosity class of III corresponding to a giant star.

0.54
G7III
4943K

The red dot in the diagram below shows where γ1 Octantis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of γ1 Octantis. Attribution: Richard Powell / CC BY-SA

Alternative designations of γ1 Octantis

γ1 Octantis
(gamma1 Octantis)
SAO258989
SAO258989