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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:58 
Sunset: 21:15
sunny   (Daytime)   What's Visible Now?


Above the horizon.  Circumpolar today
Altitude: 39.8°   Azimuth: 337.2°   Direction: North-North-West

HR7666 is a giant star of spectral class G8 in the constellation of Draco.

HR7666 visual magnitude is 6.33. Because of its faintness, HR7666 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 HR7666

Finder chart HR7666 star
Simplified finder chart for HR7666.

HR7666 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7666 are provided in the following table:

19h 58m 41s
+70° 22’ 00”
Image of HR7666 star
DSS2 image of HR7666. The red arrow shows the motion of HR7666 during the next 10000 years (7.50 arcmin in Right Ascension and 10.00 arcmin in declination);

Key facts about HR7666


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


The red dot in the diagram below shows where HR7666 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7666. Attribution: Richard Powell / CC BY-SA

Distance of HR7666 from the Sun and relative movement

HR7666 is distant 421.19 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

129.20 pc
421.19 ly
-10 km/s
0.045 arcsec/year
0.06 arcsec/year

Alternative designations of HR7666


Visibility of HR7666 from your location

HR7666 is circumpolar and transits at 02:31 UTC (altitude: 71.1°)