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🌎  Greenwich, United Kingdom [change]

7 Eridani

7 Eridani is a variable giant star in the constellation of Eridanus.

7 Eridani visual magnitude is 6.11. Because of its reltive faintness, 7 Eridani 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 7 Eridani:

6.11
Giant
7 Eridani is above the horizon from Greenwich, United Kingdom [change]. Altitude: 27°.

Celestial coordinates and finder chart of 7 Eridani

7 Eridani 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 Eridani are provided in the following table:

03h 00m 51s
-02° 52’ 42”
180.47°
-50.7°
Eridanus

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

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

Visibility of 7 Eridani from your location

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

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

Azimuth: 92.9°
Max altitude: 35.6°
Azimuth: 267.1°
7 Eridani is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 7 Eridani

The image below is a photograph of 7 Eridani 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 Eridani is 0.02 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 7 Eridani star
DSS2 image of 7 Eridani. The red arrow shows the motion of 7 Eridani during the next 10000 years (3.33 arcmin in Right Ascension and 1.00 arcmin in declination);

Distance of 7 Eridani from the Sun and relative movement

7 Eridani is distant 781.77 light years from the Sun and it is moving far from the Sun at the speed of 80 kilometers per second.

239.81 pc
781.77 ly
80 km/s
0.02 arcsec/year
0.006 arcsec/year

Spectral properties of 7 Eridani

7 Eridani belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.

-0.79
M1III
3428K

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

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

Alternative designations of 7 Eridani

SAO130242
SAO130242