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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:10 
Transit: 12:56 
Sunset: 20:42
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All Constellations » Cassiopeia » 

HR398

Above the horizon.  Circumpolar today
Alt: 33.93°   Az: 9.64°   Direction: North

HR398 is a hypergiant star of spectral class A0 in the constellation of Cassiopeia.

HR398 visual magnitude is 6.49. Because of its faintness, HR398 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 HR398 star
DSS2 image of HR398. The red arrow shows the motion of HR398 during the next 10000 years (2.67 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

01h 27m 40s
+71° 06’ 40”
13h 41m 37s
15h 09m 18s

J2000

01h 25m 46s
+70° 58’ 48”

Galactic Coordinates

125.75°
8.3°

Finder Chart

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Finder chart for HR398.

Magnitude, Color, Spectral Class

6.49
Hypergiant

0.50
A0V
10125K

The red dot in the diagram below shows where HR398 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR398. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR398 is distant 514.20 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

157.73
514.20
11 km/s
0.016 arcsec/y
-0.013"/y

Alternative Designations

SAO4401
SAO4401

Visibility from Your Location

HR398 is circumpolar and transits at 09:58 UTC (altitude: 70.4°)