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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 » 

HR8577

Altitude: -42.6°   Azimuth: 170.0°   Direction: South

HR8577 is a giant star in the constellation of Octans.

HR8577 visual magnitude is 6.15. Because of its reltive faintness, HR8577 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 HR8577 is 0.046 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8577 star
DSS2 image of HR8577. The red arrow shows the motion of HR8577 during the next 10000 years (7.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Key facts about HR8577

6.15
Giant

HR8577 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -42.6°
Azimuth: 170.0°
Direction: South

Celestial coordinates and finder chart of HR8577

HR8577 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 HR8577 are provided in the following table:

22h 35m 26s
-78° 46’ 18”
310.69°
-36.22°
Octans

The simplified sky map below shows the position of HR8577 in the sky:

Finder chart HR8577 star
Simplified finder chart for HR8577.

Visibility of HR8577 from your location

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

HR8577 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR8577 from the Sun and relative movement

HR8577 is distant 1,090.30 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

334.45 pc
1,090.30 ly
-13 km/s
0.046 arcsec/year
-0.006 arcsec/year

Spectral properties of HR8577

HR8577 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.

-1.47
K1III
3983K

The red dot in the diagram below shows where HR8577 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8577. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8577

SAO258049
SAO258049