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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sleep NighttimeWhat's Visible Now?
All Constellations » Grus » 


Altitude: -76.0°   Azimuth: 328.0°   Direction: North-North-West

HR8685 is a hypergiant star in the constellation of Grus.

HR8685 visual magnitude is 5.42. Because of its reltive faintness, HR8685 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 HR8685 is 0.022 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8685 star
DSS2 image of HR8685. The red arrow shows the motion of HR8685 during the next 10000 years (3.67 arcmin in Right Ascension and -1.83 arcmin in declination);

Key facts about HR8685


HR8685 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -76.0°
Azimuth: 328.0°
Direction: North-North-West

Celestial coordinates and finder chart of HR8685

HR8685 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8685 are provided in the following table:

22h 51m 02s
-39° 09’ 24”

The simplified sky map below shows the position of HR8685 in the sky:

Finder chart HR8685 star
Simplified finder chart for HR8685.

Visibility of HR8685 from your location

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

HR8685 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR8685 from the Sun and relative movement

HR8685 is distant 1,105.08 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

338.98 pc
1,105.08 ly
27 km/s
0.022 arcsec/year
-0.011 arcsec/year

Spectral properties of HR8685

HR8685 belongs to spectral class M0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR8685 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8685. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8685