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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
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All Constellations » Fornax » 

η1 Fornacis (eta1 Fornacis)

Altitude: -58.0°   Azimuth: 284.5°   Direction: West-North-West

η1 Fornacis is a hypergiant star in the constellation of Fornax.

η1 Fornacis visual magnitude is 6.51. Because of its reltive faintness, η1 Fornacis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of η1 Fornacis is -0.041 arcsec per year in Right Ascension and -0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of η1 Fornacis (eta1 Fornacis) star
DSS2 image of η1 Fornacis. The red arrow shows the motion of η1 Fornacis during the next 10000 years (-6.83 arcmin in Right Ascension and -6.50 arcmin in declination);

Key facts about η1 Fornacis


η1 Fornacis (eta1 Fornacis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -58.0°
Azimuth: 284.5°
Direction: West-North-West

Celestial coordinates and finder chart of η1 Fornacis

η1 Fornacis is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of η1 Fornacis are provided in the following table:

02h 47m 33s
-35° 33’ 02”

The simplified sky map below shows the position of η1 Fornacis in the sky:

Finder chart η1 Fornacis (eta1 Fornacis) star
Simplified finder chart for η1 Fornacis (eta1 Fornacis).

Visibility of η1 Fornacis 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 η1 Fornacis (eta1 Fornacis) 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: 125.6°
Max altitude: 3.0°
Azimuth: 234.4°

Distance of η1 Fornacis from the Sun and relative movement

η1 Fornacis is distant 618.60 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

189.75 pc
618.60 ly
3 km/s
-0.041 arcsec/year
-0.039 arcsec/year

Spectral properties of η1 Fornacis

η1 Fornacis belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where η1 Fornacis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of η1 Fornacis. Attribution: Richard Powell / CC BY-SA

Alternative designations of η1 Fornacis

η1 Fornacis
(eta1 Fornacis)