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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:02  
clear_day Transit: 12:47  
SunsetSet: 18:32 south
sunny DaytimeWhat's Visible Now
All Constellations » Cetus » 

66 Ceti

Altitude: -5.3°   Azimuth: 272.8°   Direction: West

66 Ceti is a multiple main-sequence star in the constellation of Cetus.

66 Ceti visual magnitude is 5.54. Because of its reltive faintness, 66 Ceti 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 66 Ceti:


66 Ceti is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -5.3°
Azimuth: 272.8°
Direction: West

Celestial coordinates and finder chart of 66 Ceti

66 Ceti 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 66 Ceti are provided in the following table:

02h 12m 47s
-02° 23’ 36”

The simplified sky map below shows the position of 66 Ceti in the sky:

Finder chart 66 Ceti star
Simplified finder chart for 66 Ceti.

Visibility of 66 Ceti 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 66 Ceti 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: 92.4°
Max altitude: 36.1°
Azimuth: 267.6°

Digitized Sky Survey image of 66 Ceti

The image below is a photograph of 66 Ceti 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 66 Ceti is 0.37 arcsec per year in Right Ascension and -0.069 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 66 Ceti star
DSS2 image of 66 Ceti. The red arrow shows the motion of 66 Ceti during the next 1000 years (6.17 arcmin in Right Ascension and -1.15 arcmin in declination);

Distance of 66 Ceti from the Sun and relative movement

66 Ceti is distant 150.16 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

46.06 pc
150.16 ly
-3 km/s
0.37 arcsec/year
-0.069 arcsec/year

Spectral properties of 66 Ceti

66 Ceti belongs to spectral class F8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 66 Ceti is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 66 Ceti. Attribution: Richard Powell / CC BY-SA

66 Ceti star system properties

66 Ceti is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 66 Ceti double sysyem:

16.4 arcsec

Alternative designations of 66 Ceti

Gl 87.1A