We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Aries » 

10 Arietis

Altitude: 54.8°   Azimuth: 235.7°   Direction: South-West

10 Arietis is a multiple sub-giant star in the constellation of Aries.

10 Arietis visual magnitude is 5.63. Because of its reltive faintness, 10 Arietis 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 10 Arietis:


10 Arietis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 54.8°
Azimuth: 235.7°
Direction: South-West

Celestial coordinates and finder chart of 10 Arietis

10 Arietis is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 10 Arietis are provided in the following table:

02h 03m 39s
+25° 56’ 08”

The simplified sky map below shows the position of 10 Arietis in the sky:

Finder chart 10 Arietis star
Simplified finder chart for 10 Arietis.

Visibility of 10 Arietis 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 10 Arietis 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: 64.1°
Max altitude: 64.5°
Azimuth: 295.9°

Digitized Sky Survey image of 10 Arietis

The image below is a photograph of 10 Arietis 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 10 Arietis is 0.134 arcsec per year in Right Ascension and 0.022 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 10 Arietis star
DSS2 image of 10 Arietis. The red arrow shows the motion of 10 Arietis during the next 1000 years (2.23 arcmin in Right Ascension and 0.37 arcmin in declination);

Distance of 10 Arietis from the Sun and relative movement

10 Arietis is distant 172.49 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

52.91 pc
172.49 ly
16 km/s
0.134 arcsec/year
0.022 arcsec/year

Spectral properties of 10 Arietis

10 Arietis belongs to spectral class F8 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where 10 Arietis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 10 Arietis. Attribution: Richard Powell / CC BY-SA

10 Arietis star system properties

10 Arietis is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 10 Arietis double sysyem:

0.8 arcsec

Alternative designations of 10 Arietis