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: 4:43  
clear_day Transit: 12:58  
SunsetSet: 21:12 south
sunny DaytimeWhat's Visible Now
All Constellations » Cetus » 

80 Ceti

Altitude: 23.7°   Azimuth: 217.9°   Direction: South-West

80 Ceti is a multiple hypergiant star in the constellation of Cetus.

80 Ceti visual magnitude is 5.53. Because of its reltive faintness, 80 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 80 Ceti:


80 Ceti is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 23.7°
Azimuth: 217.9°
Direction: South-West

Celestial coordinates and finder chart of 80 Ceti

80 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 80 Ceti are provided in the following table:

02h 36m 00s
-07° 49’ 54”

The simplified sky map below shows the position of 80 Ceti in the sky:

Finder chart 80 Ceti star
Simplified finder chart for 80 Ceti.

Visibility of 80 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 80 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: 97.8°
Max altitude: 30.7°
Azimuth: 262.2°
80 Ceti is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 80 Ceti

The image below is a photograph of 80 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 80 Ceti is -0.033 arcsec per year in Right Ascension and -0.059 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 80 Ceti star
DSS2 image of 80 Ceti. The red arrow shows the motion of 80 Ceti during the next 10000 years (-5.50 arcmin in Right Ascension and -9.83 arcmin in declination);

Distance of 80 Ceti from the Sun and relative movement

80 Ceti is distant 516.64 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

158.48 pc
516.64 ly
14 km/s
-0.033 arcsec/year
-0.059 arcsec/year

Spectral properties of 80 Ceti

80 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 80 Ceti is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 80 Ceti. Attribution: Richard Powell / CC BY-SA

80 Ceti star system properties

80 Ceti is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 80 Ceti double sysyem:

146.7 arcsec

Alternative designations of 80 Ceti