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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:57 
Transit: 12:56 
Sunset: 20:56
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All Constellations » Auriga » 

HR1866

Above the horizon.  Circumpolar today
Alt: 20.35°   Az: 338.01°   Direction: North-North-West

HR1866 is a hypergiant star of spectral class M0 in the constellation of Auriga.

HR1866 visual magnitude is 5.73. Because of its faintness, HR1866 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 HR1866 star
DSS2 image of HR1866. The red arrow shows the motion of HR1866 during the next 10000 years (-2.17 arcmin in Right Ascension and -0.33 arcmin in declination);

Celestial Coordinates

Apparent

05h 38m 40s
+54° 26’ 33”
09h 31m 29s
15h 10m 09s

J2000

05h 36m 35s
+54° 25’ 44”

Galactic Coordinates

157.19°
11.82°

Finder Chart

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Finder chart for HR1866.

Magnitude, Color, Spectral Class

5.73
Hypergiant

-1.07
M0III
3608K

The red dot in the diagram below shows where HR1866 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1866. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR1866 is distant 746.00 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

228.83
746.00
1 km/s
-0.013 arcsec/y
-0.002"/y

Alternative Designations

SAO25276
SAO25276

Visibility from Your Location

HR1866 is circumpolar and transits at 13:29 UTC (altitude: 87.0°)