Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

η Crateris (eta Crateris)

η Crateris is a variable hypergiant star in the constellation of Crater.

η Crateris visual magnitude is 5.18. Because of its reltive faintness, η Crateris 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 Crateris:

5.18
Hypergiant
η Crateris (eta Crateris) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of η Crateris

η Crateris 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 η Crateris are provided in the following table:

11h 56m 00s
-17° 09’ 02”
284.47°
43.73°
Crater

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

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

Visibility of η Crateris from your location

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

Today's η Crateris (eta Crateris) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.2°
Max altitude: 21.4°
Azimuth: 252.8°
η Crateris (eta Crateris) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of η Crateris

The image below is a photograph of η Crateris 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 Crateris is -0.051 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of η Crateris (eta Crateris) star
DSS2 image of η Crateris. The red arrow shows the motion of η Crateris during the next 10000 years (-8.50 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of η Crateris from the Sun and relative movement

η Crateris is distant 285.46 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

87.57 pc
285.46 ly
15 km/s
-0.051 arcsec/year
-0.006 arcsec/year

Spectral properties of η Crateris

η Crateris belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

0.47
A0V
10382K

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

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

Alternative designations of η Crateris

η Crateris
(eta Crateris)
30 Crateris
SAO156988
SAO156988