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public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?


Above the horizon.  Circumpolar today
Altitude: 38.9°   Azimuth: 25.5°   Direction: North-North-East

HR4340 is a variable main-sequence star of spectral class A3 in the constellation of Ursa Major.

HR4340 visual magnitude is 6.4. Because of its faintness, HR4340 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 HR4340

Finder chart HR4340 star
Simplified finder chart for HR4340.

HR4340 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 HR4340 are provided in the following table:

11h 12m 11s
+68° 16’ 18”
Ursa Major
Image of HR4340 star
DSS2 image of HR4340. The red arrow shows the motion of HR4340 during the next 10000 years (5.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about HR4340


and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4340 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4340. Attribution: Richard Powell / CC BY-SA

Distance of HR4340 from the Sun and relative movement

HR4340 is distant 299.91 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

92.00 pc
299.91 ly
-18 km/s
0.032 arcsec/year
0.01 arcsec/year

Alternative designations of HR4340


Visibility of HR4340 from your location

HR4340 is circumpolar and transits at 17:06 UTC (altitude: 73.2°)