Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:34  ☀️ Transit: 13:02  🌅 Sunset: 19:31

Baten Kaitos - ζ Ceti (zeta Ceti)

Baten Kaitos, also designated as ζ Ceti (zeta Ceti), is a variable and double hypergiant star in the constellation of Cetus.

Baten Kaitos visual magnitude is 3.73. Because of its moderate brightness, Baten Kaitos should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about Baten Kaitos:

Baten Kaitos - ζ Ceti (zeta Ceti) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 26°.

Celestial coordinates and finder chart of Baten Kaitos

Baten Kaitos 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 Baten Kaitos are provided in the following table:

01h 51m 27s
-10° 20’ 06”

The simplified sky map below shows the position of Baten Kaitos in the sky:

Finder chart Baten Kaitos - ζ Ceti (zeta Ceti) star
Simplified finder chart for Baten Kaitos - ζ Ceti (zeta Ceti).

Visibility of Baten Kaitos from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Baten Kaitos - ζ Ceti (zeta Ceti) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 100.3°
Max altitude: 28.2°
Azimuth: 259.7°
Baten Kaitos - ζ Ceti (zeta Ceti) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Baten Kaitos

The image below is a photograph of Baten Kaitos 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 Baten Kaitos is 0.041 arcsec per year in Right Ascension and -0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Baten Kaitos - ζ Ceti (zeta Ceti) star
DSS2 image of Baten Kaitos. The red arrow shows the motion of Baten Kaitos during the next 10000 years (6.83 arcmin in Right Ascension and -6.50 arcmin in declination);

Distance of Baten Kaitos from the Sun and relative movement

Baten Kaitos is distant 258.94 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

79.43 pc
258.94 ly
9 km/s
0.041 arcsec/year
-0.039 arcsec/year

Spectral properties of Baten Kaitos

Baten Kaitos belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


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

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

Baten Kaitos star system properties

Baten Kaitos 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 Baten Kaitos double sysyem:

187 arcsec

Alternative designations of Baten Kaitos

Baten Kaitos
ζ Ceti
(zeta Ceti)