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

7 Ceti

7 Ceti is a variable giant star in the constellation of Cetus.

7 Ceti visual magnitude is 4.44. Because of its moderate brightness, 7 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 7 Ceti:

7 Ceti is above the horizon from Greenwich, United Kingdom [change]. Altitude: 17°.

Celestial coordinates and finder chart of 7 Ceti

7 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 7 Ceti are provided in the following table:

00h 14m 38s
-18° 55’ 58”

The simplified sky map below shows the position of 7 Ceti in the sky:

Finder chart 7 Ceti star
Simplified finder chart for 7 Ceti.

Visibility of 7 Ceti from your location

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

Today's 7 Ceti rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.9°
Max altitude: 19.6°
Azimuth: 251.1°
7 Ceti is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 7 Ceti

The image below is a photograph of 7 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 7 Ceti is -0.024 arcsec per year in Right Ascension and -0.067 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 7 Ceti star
DSS2 image of 7 Ceti. The red arrow shows the motion of 7 Ceti during the next 10000 years (-4.00 arcmin in Right Ascension and -11.17 arcmin in declination);

Distance of 7 Ceti from the Sun and relative movement

7 Ceti is distant 492.45 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

151.06 pc
492.45 ly
-23 km/s
-0.024 arcsec/year
-0.067 arcsec/year

Spectral properties of 7 Ceti

7 Ceti belongs to spectral class M3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 7 Ceti is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 7 Ceti. Attribution: Richard Powell / CC BY-SA

Alternative designations of 7 Ceti