5 Eridani

5 Eridani is a variable main-sequence star in the constellation of Eridanus.

5 Eridani visual magnitude is 5.56. Because of its reltive faintness, 5 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 5 Eridani:

Color of 5 Eridani ⬤

Magnitude of 5 Eridani 5.56

Class Main-sequence

VISIBILITY RIGHT NOW 5 Eridani is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of 5 Eridani

5 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 5 Eridani are provided in the following table:

Right Ascension J2000 02h 59m 41s

Declination J2000 -02° 27’ 53”

Galactic Longitude 179.67°

Galactic Latitude -50.64°

Constellation Eridanus

The simplified sky map below shows the position of 5 Eridani in the sky:

Simplified finder chart for 5 Eridani.

Visibility of 5 Eridani 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 5 Eridani 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: 92.5° RISE 5:31

Max altitude: 36.1° TRANSIT 11:17

Azimuth: 267.5° SET 17:02

RIGHT NOW 5 Eridani is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 5 Eridani

The image below is a photograph of 5 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 5 Eridani is -0.002 arcsec per year in Right Ascension and -0.022 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 5 Eridani. The red arrow shows the motion of 5 Eridani during the next 10000 years (-0.33 arcmin in Right Ascension and -3.67 arcmin in declination);

Distance of 5 Eridani from the Sun and relative movement

5 Eridani is distant 334.02 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

Distance (parsec) 102.46 pc

Distance (light year) 334.02 ly

Heliocentric radial velocity 18 km/s

Proper Motion RA -0.002 arcsec/year

Proper Motion Dec -0.022 arcsec/year

Spectral properties of 5 Eridani

5 Eridani belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.51

Spectral Type B9V

Color Index (B-V) -0.08

Temperature of 5 Eridani 11247K

The red dot in the diagram below shows where 5 Eridani is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 5 Eridani. Attribution: Richard Powell / CC BY-SA

Alternative designations of 5 Eridani

Flamsteed designation 5 Eridani

Henry Draper Catalogue HD18633

SAO Catalogue SAO130228

Hipparcos Catalogue HIP13951

Durchmusterung Catalogue BD-03 475

FK5 Catalogue 2209

General Catalogue of Variable Stars 1008

In Evidence

Other stars in Eridanus