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🌎  Observing from: Greenwich, United Kingdom [change]

τ Fornacis (tau Fornacis)

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

τ Fornacis visual magnitude is 6.01. Because of its reltive faintness, τ Fornacis 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 τ Fornacis:

τ Fornacis (tau Fornacis) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 5°.

Celestial coordinates and finder chart of τ Fornacis

τ Fornacis 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 τ Fornacis are provided in the following table:

03h 38m 47s
-27° 56’ 35”

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

Finder chart τ Fornacis (tau Fornacis) star
Simplified finder chart for τ Fornacis (tau Fornacis).

Visibility of τ Fornacis from your location

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

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

Azimuth: 117.9°
Max altitude: 10.6°
Azimuth: 242.1°
τ Fornacis (tau Fornacis) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of τ Fornacis

The image below is a photograph of τ Fornacis 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 τ Fornacis is 0.025 arcsec per year in Right Ascension and 0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of τ Fornacis (tau Fornacis) star
DSS2 image of τ Fornacis. The red arrow shows the motion of τ Fornacis during the next 10000 years (4.17 arcmin in Right Ascension and 3.83 arcmin in declination);

Distance of τ Fornacis from the Sun and relative movement

τ Fornacis is distant 417.41 light years from the Sun and it is moving far from the Sun at the speed of 39 kilometers per second.

128.04 pc
417.41 ly
39 km/s
0.025 arcsec/year
0.023 arcsec/year

Spectral properties of τ Fornacis

τ Fornacis belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


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

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

Alternative designations of τ Fornacis

τ Fornacis
(tau Fornacis)