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public  Geneseo, United States Geneseo, United States  ⓘ
TimezoneAmerica/New_York
Sunrise: 5:34 
Transit: 13:13 
Sunset: 20:52
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All Constellations » Octans » 

α Octantis (alpha Octantis)

Below the horizon.  Never rises today
Alt: -54.86°   Az: 187.74°   Direction: South-South-West

α Octantis is a giant star of spectral class A7 in the constellation of Octans.

α Octantis visual magnitude is 5.15. Because of its faintness, α Octantis is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of α Octantis (alpha Octantis) star
DSS2 image of α Octantis. The red arrow shows the motion of α Octantis during the next 1000 years (0.10 arcmin in Right Ascension and -6.15 arcmin in declination);

Celestial Coordinates

Apparent

21h 07m 42s
-76° 55’ 15”
10h 39m 54s
07h 47m 36s

J2000

21h 04m 42s
-77° 01’ 26”

Galactic Coordinates

315.96°
-33.65°

Finder Chart

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Finder chart for α Octantis (alpha Octantis).

Magnitude, Color, Spectral Class

5.15
Giant

1.87
A7III
6435K

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

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

Distance, Radial Speed, Proper Motion

α Octantis is distant 147.71 light years from the Sun and it is moving far from the Sun at the speed of 45 kilometers per second.

45.31
147.71
45 km/s
0.006 arcsec/y
-0.369"/y

Alternative Designations

α Octantis
(alpha Octantis)
SAO257879
SAO257879

Visibility from Your Location

α Octantis (alpha Octantis) is currently not visible from Geneseo, United States