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public LocationGreenwich, UK
Sunrise: 4:43 
Transit: 13:01 
Sunset: 21:18
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Cassiopeia » 


Above the horizon.  Circumpolar today
Altitude: 45.1°   Azimuth: 36.9°   Direction: North-East

HR9017 is a variable and multiple hypergiant star of spectral class A0 in the constellation of Cassiopeia.

HR9017 visual magnitude is 6.41. Because of its faintness, HR9017 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 HR9017

Finder chart HR9017 star
Simplified finder chart for HR9017.

HR9017 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 HR9017 are provided in the following table:

23h 48m 38s
+64° 52’ 35”
Image of HR9017 star
DSS2 image of HR9017. The red arrow shows the motion of HR9017 during the next 10000 years (2.17 arcmin in Right Ascension and -3.33 arcmin in declination);

Key facts about HR9017


HR9017 is also a SrSiCr chemically peculiar star.


The red dot in the diagram below shows where HR9017 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR9017. Attribution: Richard Powell / CC BY-SA

HR9017 star system properties

HR9017 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR9017 double sysyem:

0.7 arcsec

Distance of HR9017 from the Sun and relative movement

HR9017 is distant 718.06 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

220.26 pc
718.06 ly
-3 km/s
0.013 arcsec/year
-0.02 arcsec/year

Alternative designations of HR9017


Visibility of HR9017 from your location

HR9017 is circumpolar and transits at 05:37 UTC (altitude: 76.6°)