Your guide to the Solar System and the night sky
Latest Perseverance Images received 5 hours 52 mins ago for Sol275, Sol274, Sol272
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

η Circini (eta Circini)

η Circini is a giant star in the constellation of Circinus.

η Circini visual magnitude is 5.17. Because of its reltive faintness, η Circini 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 η Circini:

η Circini (eta Circini) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of η Circini

η Circini is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of η Circini are provided in the following table:

15h 04m 48s
-64° 01’ 54”

The simplified sky map below shows the position of η Circini in the sky:

Finder chart η Circini (eta Circini) star
Simplified finder chart for η Circini (eta Circini).

Visibility of η Circini from your location

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

η Circini (eta Circini) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of η Circini

The image below is a photograph of η Circini 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 η Circini is 0.099 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of η Circini (eta Circini) star
DSS2 image of η Circini. The red arrow shows the motion of η Circini during the next 1000 years (1.65 arcmin in Right Ascension and 0.07 arcmin in declination);

Distance of η Circini from the Sun and relative movement

η Circini is distant 267.21 light years from the Sun and it is moving far from the Sun at the speed of 45 kilometers per second.

81.97 pc
267.21 ly
45 km/s
0.099 arcsec/year
0.004 arcsec/year

Spectral properties of η Circini

η Circini belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of η Circini

η Circini
(eta Circini)