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public LocationGreenwich, UK
Sunrise: 4:43 
Transit: 13:01 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?
All Constellations » Lacerta » 


Above the horizon.  Circumpolar today
Altitude: 37.8°   Azimuth: 292.0°   Direction: West-North-West

HR8643 is a giant star of spectral class G9 in the constellation of Lacerta.

HR8643 visual magnitude is 5.94. Because of its faintness, HR8643 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR8643

Finder chart HR8643 star
Simplified finder chart for HR8643.

HR8643 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8643 are provided in the following table:

22h 41m 36s
+41° 32’ 57”
Image of HR8643 star
DSS2 image of HR8643. The red arrow shows the motion of HR8643 during the next 1000 years (2.47 arcmin in Right Ascension and 1.08 arcmin in declination);

Key facts about HR8643


and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR8643 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR8643. Attribution: Richard Powell / CC BY-SA

Distance of HR8643 from the Sun and relative movement

HR8643 is distant 323.41 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

99.21 pc
323.41 ly
-14 km/s
0.148 arcsec/year
0.065 arcsec/year

Alternative designations of HR8643


Visibility of HR8643 from your location

HR8643 is circumpolar and transits at 04:26 UTC (altitude: 80.1°)