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Keid - ο2 Eridani (omicron2 Eridani)

Keid, also designated as ο2 Eridani (omicron2 Eridani), is a variable and multiple main-sequence star in the constellation of Eridanus.

Keid visual magnitude is 4.43. Because of its moderate brightness, Keid 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 Keid:

Color of Keid ⬤

Magnitude of Keid 4.43

Class Main-sequence

VISIBILITY RIGHT NOW Keid - ο2 Eridani (omicron2 Eridani) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 10°.

Celestial coordinates and finder chart of Keid

Keid 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 Keid are provided in the following table:

Right Ascension J2000 04h 15m 16s

Declination J2000 -07° 39’ 10”

Galactic Longitude 200.72°

Galactic Latitude -38°

Constellation Eridanus

The simplified sky map below shows the position of Keid in the sky:

Finder chart Keid - ο2 Eridani (omicron2 Eridani) star

Simplified finder chart for Keid - ο2 Eridani (omicron2 Eridani).

Visibility of Keid from your location

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

Today's Keid - ο2 Eridani (omicron2 Eridani) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.7° RISE 11:16

Max altitude: 30.9° TRANSIT 16:36

Azimuth: 262.3° SET 21:55

RIGHT NOW Keid - ο2 Eridani (omicron2 Eridani) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Keid

The image below is a photograph of Keid 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 Keid is -2.242 arcsec per year in Right Ascension and -3.414 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.

Image of Keid - ο2 Eridani (omicron2 Eridani) star

DSS2 image of Keid. The red arrow shows the motion of Keid during the next 100 years (-3.74 arcmin in Right Ascension and -5.69 arcmin in declination);

Distance of Keid from the Sun and relative movement

Keid is distant 16.44 light years from the Sun and it is moving towards the Sun at the speed of 42 kilometers per second.

Distance (parsec) 5.04 pc

Distance (light year) 16.44 ly

Heliocentric radial velocity -42 km/s

Proper Motion RA -2.242 arcsec/year

Proper Motion Dec -3.414 arcsec/year

Spectral properties of Keid

Keid belongs to spectral class K1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 5.92

Spectral Type K1V

Color Index (B-V) 0.82

Temperature of Keid 5221K

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

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

Keid star system properties

Keid is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Keid double sysyem:

Main star magnitude 4.43

Secondary star magnitude 9.43

Magnitude difference 5

Separation 83.4 arcsec

Alternative designations of Keid

Proper Name Keid

Bayer designation ο2 Eridani
(omicron2 Eridani)

Flamsteed designation 40 Eridani

Henry Draper Catalogue HD26965

SAO Catalogue SAO131063

Hipparcos Catalogue HIP19849

Durchmusterung Catalogue BD-07 780

Gliese Catalogue Gl 166 A

General Catalogue of Variable Stars DY Eri

Aitken Double Star Catalogue ADS3093

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Other stars in Eridanus