Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:47  
clear_day Transit: 12:50  
SunsetSet: 18:52 south
sunny DaytimeWhat's Visible Now
All Constellations » Pegasus » 


Altitude: -24.3°   Azimuth: 338.4°   Direction: North-North-West

HR8724 is a double main-sequence star in the constellation of Pegasus.

HR8724 visual magnitude is 6.51. Because of its reltive faintness, HR8724 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR8724:


HR8724 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -24.3°
Azimuth: 338.4°
Direction: North-North-West

Celestial coordinates and finder chart of HR8724

HR8724 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 HR8724 are provided in the following table:

22h 56m 51s
+11° 50’ 53”

The simplified sky map below shows the position of HR8724 in the sky:

Finder chart HR8724 star
Simplified finder chart for HR8724.

Visibility of HR8724 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 HR8724 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: 78.2°
Max altitude: 50.4°
Azimuth: 281.8°

Digitized Sky Survey image of HR8724

The image below is a photograph of HR8724 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR8724 is 0.063 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8724 star
DSS2 image of HR8724. The red arrow shows the motion of HR8724 during the next 10000 years (10.50 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of HR8724 from the Sun and relative movement

HR8724 is distant 265.91 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

81.57 pc
265.91 ly
8 km/s
0.063 arcsec/year
-0.009 arcsec/year

Spectral properties of HR8724

HR8724 belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8724 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8724. Attribution: Richard Powell / CC BY-SA

HR8724 star system properties

HR8724 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR8724 double sysyem:

3.9 arcsec

Alternative designations of HR8724