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: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:09 south
sunny DaytimeWhat's Visible Now
All Constellations » Grus » 


Altitude: -8.5°   Azimuth: 172.4°   Direction: South

HR8657 is a giant star in the constellation of Grus.

HR8657 visual magnitude is 5.51. Because of its reltive faintness, HR8657 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 HR8657:


HR8657 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -8.5°
Azimuth: 172.4°
Direction: South

Celestial coordinates and finder chart of HR8657

HR8657 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 HR8657 are provided in the following table:

22h 45m 40s
-46° 32’ 50”

The simplified sky map below shows the position of HR8657 in the sky:

Finder chart HR8657 star
Simplified finder chart for HR8657.

Visibility of HR8657 from your location

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

HR8657 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR8657

The image below is a photograph of HR8657 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 HR8657 is -0.031 arcsec per year in Right Ascension and -0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8657 star
DSS2 image of HR8657. The red arrow shows the motion of HR8657 during the next 10000 years (-5.17 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR8657 from the Sun and relative movement

HR8657 is distant 663.95 light years from the Sun and it is moving far from the Sun at the speed of 42 kilometers per second.

203.67 pc
663.95 ly
42 km/s
-0.031 arcsec/year
-0.02 arcsec/year

Spectral properties of HR8657

HR8657 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR8657 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8657. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8657