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: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
sunny DaytimeWhat's Visible Now
All Constellations » Taurus » 

Celaeno - 16 Tauri

Altitude: 30.0°   Azimuth: 87.8°   Direction: East

Celaeno, also designated as 16 Tauri , is a variable and double sub-giant star in the constellation of Taurus.

Celaeno visual magnitude is 5.46. Because of its reltive faintness, Celaeno 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 Celaeno:


Celaeno - 16 Tauri is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 30.0°
Azimuth: 87.8°
Direction: East

Celestial coordinates and finder chart of Celaeno

Celaeno 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 Celaeno are provided in the following table:

03h 44m 48s
+24° 17’ 21”

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

Finder chart Celaeno - 16 Tauri star
Simplified finder chart for Celaeno - 16 Tauri.

Visibility of Celaeno 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 Celaeno - 16 Tauri 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: 65.7°
Max altitude: 62.8°
Azimuth: 294.3°
Celaeno - 16 Tauri is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Celaeno

The image below is a photograph of Celaeno 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 Celaeno is 0.011 arcsec per year in Right Ascension and -0.046 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Celaeno - 16 Tauri star
DSS2 image of Celaeno. The red arrow shows the motion of Celaeno during the next 10000 years (1.83 arcmin in Right Ascension and -7.67 arcmin in declination);

Distance of Celaeno from the Sun and relative movement

Celaeno is distant 334.36 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

102.56 pc
334.36 ly
3 km/s
0.011 arcsec/year
-0.046 arcsec/year

Spectral properties of Celaeno

Celaeno belongs to spectral class B7 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Celaeno star system properties

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

0 arcsec

Alternative designations of Celaeno