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


Below the horizon.  Never rises today
Altitude: -46.6°   Azimuth: 139.7°   Direction: South-East

HR4771 is a giant star of spectral class A8 in the constellation of Crux.

HR4771 visual magnitude is 5.95. Because of its faintness, HR4771 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 HR4771

Finder chart HR4771 star
Simplified finder chart for HR4771.

HR4771 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 HR4771 are provided in the following table:

12h 31m 55s
-63° 30’ 21”
Image of HR4771 star
DSS2 image of HR4771. The red arrow shows the motion of HR4771 during the next 10000 years (-10.50 arcmin in Right Ascension and 1.33 arcmin in declination);

Key facts about HR4771


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


The red dot in the diagram below shows where HR4771 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4771. Attribution: Richard Powell / CC BY-SA

Distance of HR4771 from the Sun and relative movement

HR4771 is distant 240.41 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

73.75 pc
240.41 ly
4 km/s
-0.063 arcsec/year
0.008 arcsec/year

Alternative designations of HR4771


Visibility of HR4771 from your location

HR4771 is currently not visible from Greenwich, United Kingdom