Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:04  
clear_day Transit: 12:47  
SunsetSet: 18:30 south
sunny DaytimeWhat's Visible Now
All Constellations » Eridanus » 

Beid - ο1 Eridani (omicron1 Eridani)

Altitude: -38.6°   Azimuth: 319.4°   Direction: North-West

Beid, also designated as ο1 Eridani (omicron1 Eridani), is a variable bright giant star in the constellation of Eridanus.

Beid visual magnitude is 4.04. Because of its moderate brightness, Beid 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 Beid:

Bright giant

Beid - ο1 Eridani (omicron1 Eridani) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -38.6°
Azimuth: 319.4°
Direction: North-West

Celestial coordinates and finder chart of Beid

Beid 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 Beid are provided in the following table:

04h 11m 51s
-06° 50’ 15”

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

Finder chart Beid - ο1 Eridani (omicron1 Eridani) star
Simplified finder chart for Beid - ο1 Eridani (omicron1 Eridani).

Visibility of Beid 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 Beid - ο1 Eridani (omicron1 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: 96.8°
Max altitude: 31.7°
Azimuth: 263.2°

Digitized Sky Survey image of Beid

The image below is a photograph of Beid 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 Beid is 0.01 arcsec per year in Right Ascension and 0.082 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Beid - ο1 Eridani (omicron1 Eridani) star
DSS2 image of Beid. The red arrow shows the motion of Beid during the next 10000 years (1.67 arcmin in Right Ascension and 13.67 arcmin in declination);

Distance of Beid from the Sun and relative movement

Beid is distant 125.48 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

38.49 pc
125.48 ly
11 km/s
0.01 arcsec/year
0.082 arcsec/year

Spectral properties of Beid

Beid belongs to spectral class F2 and has a luminosity class of II corresponding to a bright giant star.


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

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

Alternative designations of Beid

ο1 Eridani
(omicron1 Eridani)