Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:50  
clear_day Transit: 12:56  
SunsetSet: 21:02 south
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All Constellations » Cassiopeia » 


HR9110 is a variable sub-giant star in the constellation of Cassiopeia.

HR9110 visual magnitude is 5.8. Because of its reltive faintness, HR9110 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR9110:

HR9110 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 35°.

Celestial coordinates and finder chart of HR9110

HR9110 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 HR9110 are provided in the following table:

00h 05m 06s
+61° 18’ 51”

The simplified sky map below shows the position of HR9110 in the sky:

Finder chart HR9110 star
Simplified finder chart for HR9110.

Visibility of HR9110 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR9110 is circumpolar and transits at 07:34 UTC (altitude: 80.2°)

Digitized Sky Survey image of HR9110

The image below is a photograph of HR9110 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR9110 is 0.015 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR9110 star
DSS2 image of HR9110. The red arrow shows the motion of HR9110 during the next 10000 years (2.50 arcmin in Right Ascension and 0.83 arcmin in declination);

Distance of HR9110 from the Sun and relative movement

HR9110 is distant 724.44 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

222.22 pc
724.44 ly
14 km/s
0.015 arcsec/year
0.005 arcsec/year

Spectral properties of HR9110

HR9110 belongs to spectral class B8 and has a luminosity class of IV corresponding to a sub-giant star. HR9110 is also a HgMn chemically peculiar star.


The red dot in the diagram below shows where HR9110 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR9110. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR9110