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: 6:55  
clear_day Transit: 12:49  
SunsetSet: 18:41 south
sunny DaytimeWhat's Visible Now
All Constellations » Aries » 

11 Arietis

Altitude: -12.6°   Azimuth: 6.2°   Direction: North

11 Arietis is a double sub-giant star in the constellation of Aries.

11 Arietis visual magnitude is 6.15. Because of its reltive faintness, 11 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 11 Arietis:


11 Arietis is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -12.6°
Azimuth: 6.2°
Direction: North

Celestial coordinates and finder chart of 11 Arietis

11 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 11 Arietis are provided in the following table:

02h 06m 49s
+25° 42’ 16”

The simplified sky map below shows the position of 11 Arietis in the sky:

Finder chart 11 Arietis star
Simplified finder chart for 11 Arietis.

Visibility of 11 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 11 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: 64.3°
Max altitude: 64.2°
Azimuth: 295.7°

Digitized Sky Survey image of 11 Arietis

The image below is a photograph of 11 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 11 Arietis is 0.017 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 11 Arietis star
DSS2 image of 11 Arietis. The red arrow shows the motion of 11 Arietis during the next 10000 years (2.83 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of 11 Arietis from the Sun and relative movement

11 Arietis is distant 1,160.14 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

355.87 pc
1,160.14 ly
-9 km/s
0.017 arcsec/year
-0.011 arcsec/year

Spectral properties of 11 Arietis

11 Arietis belongs to spectral class B9 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where 11 Arietis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 11 Arietis. Attribution: Richard Powell / CC BY-SA

11 Arietis star system properties

11 Arietis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 11 Arietis double sysyem:

1.6 arcsec

Alternative designations of 11 Arietis