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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:48  
clear_day Transit: 12:11  
SunsetSet: 17:34
sleep NighttimeWhat's Visible Now?
All Constellations » Cetus » 

48 Ceti

Altitude: -44.6°   Azimuth: 294.0°   Direction: West-North-West

48 Ceti is a double main-sequence star in the constellation of Cetus.

48 Ceti visual magnitude is 5.12. Because of its reltive faintness, 48 Ceti should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 48 Ceti is 0.056 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 48 Ceti star
DSS2 image of 48 Ceti. The red arrow shows the motion of 48 Ceti during the next 10000 years (9.33 arcmin in Right Ascension and 1.00 arcmin in declination);

Key facts about 48 Ceti


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

Altitude: -44.6°
Azimuth: 294.0°
Direction: West-North-West

Celestial coordinates and finder chart of 48 Ceti

48 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 48 Ceti are provided in the following table:

01h 29m 36s
-21° 37’ 45”

The simplified sky map below shows the position of 48 Ceti in the sky:

Finder chart 48 Ceti star
Simplified finder chart for 48 Ceti.

Visibility of 48 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 48 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: 111.6°
Max altitude: 16.9°
Azimuth: 248.4°

Distance of 48 Ceti from the Sun and relative movement

48 Ceti is distant 221.47 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

67.93 pc
221.47 ly
1 km/s
0.056 arcsec/year
0.006 arcsec/year

Spectral properties of 48 Ceti

48 Ceti belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 48 Ceti is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 48 Ceti. Attribution: Richard Powell / CC BY-SA

48 Ceti star system properties

48 Ceti 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 48 Ceti double sysyem:

22 arcsec

Alternative designations of 48 Ceti