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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:08 
Transit: 13:06 
Sunset: 21:03
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Ursa Major » 

HR4493

Above the horizon.  Circumpolar today
Alt: 24.78°   Az: 336.50°   Direction: North-North-West

HR4493 is a star of spectral class B9 in the constellation of Ursa Major.

HR4493 visual magnitude is 6.37. Because of its faintness, HR4493 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.

Image of HR4493 star
DSS2 image of HR4493. The red arrow shows the motion of HR4493 during the next 10000 years (-2.00 arcmin in Right Ascension and 3.50 arcmin in declination);

Celestial Coordinates

Apparent

11h 41m 47s
+57° 50’ 03”
09h 08m 38s
20h 50m 25s

J2000

11h 40m 27s
+57° 58’ 14”

Galactic Coordinates

140.07°
56.73°

Finder Chart

Finder chart HR4493 star
Simplified finder chart for HR4493.

Magnitude, Color, Spectral Class

6.37
HR4493 is also a HgMn chemically peculiar star.

0.33
B9
11920K

The red dot in the diagram below shows where HR4493 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4493. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4493 is distant 525.81 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

161.29
525.81
4 km/s
-0.012 arcsec/y
0.021"/y

Alternative Designations

SAO28093
SAO28093

Visibility from Your Location

HR4493 is circumpolar and transits at 15:46 UTC (altitude: 83.6°)