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: 6:46  
clear_day Transit: 12:51  
SunsetSet: 18:55 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Cetus » 


Altitude: 3.2°   Azimuth: 236.5°   Direction: West-South-West

HR10 is a main-sequence star in the constellation of Cetus.

HR10 visual magnitude is 6.19. Because of its reltive faintness, HR10 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 HR10:


HR10 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 3.2°
Azimuth: 236.5°
Direction: West-South-West

Celestial coordinates and finder chart of HR10

HR10 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR10 are provided in the following table:

00h 07m 18s
-17° 23’ 11”

The simplified sky map below shows the position of HR10 in the sky:

Finder chart HR10 star
Simplified finder chart for HR10.

Visibility of HR10 from your location

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

Today's HR10 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.4°
Max altitude: 21.1°
Azimuth: 252.6°

Digitized Sky Survey image of HR10

The image below is a photograph of HR10 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 HR10 is -0.018 arcsec per year in Right Ascension and 0.036 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR10 star
DSS2 image of HR10. The red arrow shows the motion of HR10 during the next 10000 years (-3.00 arcmin in Right Ascension and 6.00 arcmin in declination);

Distance of HR10 from the Sun and relative movement

HR10 is distant 522.44 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

160.26 pc
522.44 ly
-9 km/s
-0.018 arcsec/year
0.036 arcsec/year

Spectral properties of HR10

HR10 belongs to spectral class A6 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR10 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR10. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR10