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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:04 
Transit: 13:06 
Sunset: 21:07
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All Constellations » Octans » 

β Octantis (beta Octantis)

Below the horizon.  Never rises today
Alt: -44.05°   Az: 173.10°   Direction: South

β Octantis is a sub-giant star of spectral class A9 in the constellation of Octans.

β Octantis visual magnitude is 4.15. Because of its moderate brightness, β Octantis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of β Octantis (beta Octantis) star
DSS2 image of β Octantis. The red arrow shows the motion of β Octantis during the next 10000 years (-11.17 arcmin in Right Ascension and -0.17 arcmin in declination);

Celestial Coordinates

Apparent

22h 48m 31s
-81° 14’ 47”
21h 41m 41s
20h 30m 12s

J2000

22h 46m 03s
-81° 22’ 54”

Galactic Coordinates

308.35°
-34.38°

Finder Chart

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Finder chart for β Octantis (beta Octantis).

Magnitude, Color, Spectral Class

4.15
Sub-giant

0.98
A9IV
8163K

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

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

Distance, Radial Speed, Proper Motion

β Octantis is distant 140.34 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

43.05
140.34
24 km/s
-0.067 arcsec/y
-0.001"/y

Alternative Designations

β Octantis
(beta Octantis)
SAO258941
SAO258941

Visibility from Your Location

β Octantis (beta Octantis) is currently not visible from Greenwich, UK