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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: 5:39  
clear_day Transit: 12:56  
SunsetSet: 20:14
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All Constellations » Octans » 

π2 Octantis (pi2 Octantis)

Altitude: -58.0°   Azimuth: 184.2°   Direction: South

π2 Octantis is a supergiant star in the constellation of Octans.

π2 Octantis visual magnitude is 5.65. Because of its reltive faintness, π2 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 π2 Octantis is -0.016 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of π2 Octantis (pi2 Octantis) star
DSS2 image of π2 Octantis. The red arrow shows the motion of π2 Octantis during the next 10000 years (-2.67 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about π2 Octantis

5.65
Supergiant

π2 Octantis (pi2 Octantis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -58.0°
Azimuth: 184.2°
Direction: South

Celestial coordinates and finder chart of π2 Octantis

π2 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 π2 Octantis are provided in the following table:

15h 04m 46s
-83° 02’ 17”
307.03°
-21.25°
Octans

The simplified sky map below shows the position of π2 Octantis in the sky:

Finder chart π2 Octantis (pi2 Octantis) star
Simplified finder chart for π2 Octantis (pi2 Octantis).

Visibility of π2 Octantis from your location

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

π2 Octantis (pi2 Octantis) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of π2 Octantis from the Sun and relative movement

π2 Octantis is distant 1,734.04 light years from the Sun and it is moving towards the Sun at the speed of 21 kilometers per second.

531.91 pc
1,734.04 ly
-21 km/s
-0.016 arcsec/year
-0.01 arcsec/year

Spectral properties of π2 Octantis

π2 Octantis belongs to spectral class G8 and has a luminosity class of I corresponding to a supergiant star.

-2.98
G8I
4121K

The red dot in the diagram below shows where π2 Octantis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of π2 Octantis. Attribution: Richard Powell / CC BY-SA

Alternative designations of π2 Octantis

π2 Octantis
(pi2 Octantis)
SAO258714
SAO258714