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: 4:48  
clear_day Transit: 12:56  
SunsetSet: 21:05 south
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All Constellations » Eridanus » 

Azha - η Eridani (eta Eridani)

Azha, also designated as η Eridani (eta Eridani), is a variable giant star in the constellation of Eridanus.

Azha visual magnitude is 3.89. Because of its moderate brightness, Azha 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 Azha:

Azha - η Eridani (eta Eridani) is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 11°.

Celestial coordinates and finder chart of Azha

Azha 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 Azha are provided in the following table:

02h 56m 25s
-08° 53’ 53”

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

Finder chart Azha - η Eridani (eta Eridani) star
Simplified finder chart for Azha - η Eridani (eta Eridani).

Visibility of Azha 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 Azha - η Eridani (eta 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: 98.9°
Max altitude: 29.6°
Azimuth: 261.1°
Azha - η Eridani (eta Eridani) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Azha

The image below is a photograph of Azha 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 Azha is 0.079 arcsec per year in Right Ascension and -0.22 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Azha - η Eridani (eta Eridani) star
DSS2 image of Azha. The red arrow shows the motion of Azha during the next 1000 years (1.32 arcmin in Right Ascension and -3.67 arcmin in declination);

Distance of Azha from the Sun and relative movement

Azha is distant 133.12 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

40.83 pc
133.12 ly
-20 km/s
0.079 arcsec/year
-0.22 arcsec/year

Spectral properties of Azha

Azha belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of Azha

η Eridani
(eta Eridani)