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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:12 
Transit: 13:06 
Sunset: 20:59
sunny   (Daytime)   What's Visible Now?
All Constellations » Ursa Major » 

HR4457

Above the horizon.  Circumpolar today
Alt: 23.42°   Az: 27.98°   Direction: North-North-East

HR4457 is a hypergiant star of spectral class K0 in the constellation of Ursa Major.

HR4457 visual magnitude is 5.63. Because of its faintness, HR4457 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 HR4457 star
DSS2 image of HR4457. The red arrow shows the motion of HR4457 during the next 100000 years (13.33 arcmin in Right Ascension and 13.33 arcmin in declination);

Celestial Coordinates

Apparent

11h 36m 25s
+54° 38’ 57”
15h 12m 21s
02h 48m 46s

J2000

11h 35m 04s
+54° 47’ 07”

Galactic Coordinates

144.44°
59.04°

Finder Chart

Finder chart HR4457 star
Simplified finder chart for HR4457.

Magnitude, Color, Spectral Class

5.63
Hypergiant

0.13
K0III
4695K

The red dot in the diagram below shows where HR4457 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4457. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4457 is distant 410.58 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

125.94
410.58
18 km/s
0.008 arcsec/y
0.008"/y

Alternative Designations

SAO28064
SAO28064

Visibility from Your Location

HR4457 is circumpolar and transits at 15:28 UTC (altitude: 86.8°)