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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:59  
clear_day Transit: 12:48  
SunsetSet: 18:36 south
sunny DaytimeWhat's Visible Now
All Constellations » Cetus » 

υ Ceti (upsilon Ceti)

Altitude: -55.3°   Azimuth: 323.2°   Direction: North-West

υ Ceti is a hypergiant star in the constellation of Cetus.

υ Ceti visual magnitude is 4. Because of its moderate brightness, υ Ceti 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 υ Ceti:


υ Ceti (upsilon Ceti) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -55.3°
Azimuth: 323.2°
Direction: North-West

Celestial coordinates and finder chart of υ Ceti

υ 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 υ Ceti are provided in the following table:

02h 00m 00s
-21° 04’ 40”

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

Finder chart υ Ceti (upsilon Ceti) star
Simplified finder chart for υ Ceti (upsilon Ceti).

Visibility of υ 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 υ Ceti (upsilon 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: 111.1°
Max altitude: 17.4°
Azimuth: 248.9°

Digitized Sky Survey image of υ Ceti

The image below is a photograph of υ 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 υ Ceti is 0.135 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of υ Ceti (upsilon Ceti) star
DSS2 image of υ Ceti. The red arrow shows the motion of υ Ceti during the next 1000 years (2.25 arcmin in Right Ascension and -0.40 arcmin in declination);

Distance of υ Ceti from the Sun and relative movement

υ Ceti is distant 300.74 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

92.25 pc
300.74 ly
18 km/s
0.135 arcsec/year
-0.024 arcsec/year

Spectral properties of υ Ceti

υ Ceti belongs to spectral class M0 and has a luminosity class of III corresponding to a hypergiant star.


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

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

Alternative designations of υ Ceti

υ Ceti
(upsilon Ceti)