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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: 6:50  
clear_day Transit: 12:11  
SunsetSet: 17:32
sleep NighttimeWhat's Visible Now?
All Constellations » Pegasus » 


Altitude: -28.0°   Azimuth: 356.7°   Direction: North

HR8681 is a hypergiant star in the constellation of Pegasus.

HR8681 visual magnitude is 6.54. Because of its reltive faintness, HR8681 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 HR8681 is 0.091 arcsec per year in Right Ascension and -0.031 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR8681 star
DSS2 image of HR8681. The red arrow shows the motion of HR8681 during the next 1000 years (1.52 arcmin in Right Ascension and -0.52 arcmin in declination);

Key facts about HR8681


HR8681 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -28.0°
Azimuth: 356.7°
Direction: North

Celestial coordinates and finder chart of HR8681

HR8681 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8681 are provided in the following table:

22h 49m 32s
+10° 28’ 44”

The simplified sky map below shows the position of HR8681 in the sky:

Finder chart HR8681 star
Simplified finder chart for HR8681.

Visibility of HR8681 from your location

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

Today's HR8681 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 79.5°
Max altitude: 49.0°
Azimuth: 280.5°

Distance of HR8681 from the Sun and relative movement

HR8681 is distant 223.75 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

68.63 pc
223.75 ly
-8 km/s
0.091 arcsec/year
-0.031 arcsec/year

Spectral properties of HR8681

HR8681 belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR8681 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8681. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8681