Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:50  
clear_day Transit: 12:56  
SunsetSet: 21:03 south
wb_twilight Civil TwilightWhat's Visible Now
All Constellations » Aries » 

47 Arietis

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

47 Arietis visual magnitude is 5.8. Because of its reltive faintness, 47 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 47 Arietis:

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

Celestial coordinates and finder chart of 47 Arietis

47 Arietis 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 47 Arietis are provided in the following table:

02h 58m 05s
+20° 40’ 06”

The simplified sky map below shows the position of 47 Arietis in the sky:

Finder chart 47 Arietis star
Simplified finder chart for 47 Arietis.

Visibility of 47 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 47 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: 69.3°
Max altitude: 59.2°
Azimuth: 290.7°
47 Arietis is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 47 Arietis

The image below is a photograph of 47 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 47 Arietis is 0.233 arcsec per year in Right Ascension and -0.031 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 47 Arietis star
DSS2 image of 47 Arietis. The red arrow shows the motion of 47 Arietis during the next 1000 years (3.88 arcmin in Right Ascension and -0.52 arcmin in declination);

Distance of 47 Arietis from the Sun and relative movement

47 Arietis is distant 103.79 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

31.84 pc
103.79 ly
28 km/s
0.233 arcsec/year
-0.031 arcsec/year

Spectral properties of 47 Arietis

47 Arietis belongs to spectral class F5 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where 47 Arietis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 47 Arietis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 47 Arietis