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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 » 

HR8957

Altitude: -43.5°   Azimuth: 195.5°   Direction: South-South-West

HR8957 is a hypergiant star in the constellation of Octans.

HR8957 visual magnitude is 6. Because of its reltive faintness, HR8957 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 HR8957 is 0.082 arcsec per year in Right Ascension and -0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8957 star
DSS2 image of HR8957. The red arrow shows the motion of HR8957 during the next 10000 years (13.67 arcmin in Right Ascension and -5.33 arcmin in declination);

Key facts about HR8957

6
Hypergiant

HR8957 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -43.5°
Azimuth: 195.5°
Direction: South-South-West

Celestial coordinates and finder chart of HR8957

HR8957 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 HR8957 are provided in the following table:

23h 38m 24s
-76° 52’ 12”
308.23°
-39.5°
Octans

The simplified sky map below shows the position of HR8957 in the sky:

Finder chart HR8957 star
Simplified finder chart for HR8957.

Visibility of HR8957 from your location

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

HR8957 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR8957 from the Sun and relative movement

HR8957 is distant 624.52 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

191.57 pc
624.52 ly
2 km/s
0.082 arcsec/year
-0.032 arcsec/year

Spectral properties of HR8957

HR8957 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

-0.41
K0III
4996K

The red dot in the diagram below shows where HR8957 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8957. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8957

SAO258166
SAO258166