WhatTheStar

Stars · Star in Taurus

Star

Aldebaran

The bull’s fiery eye. Its name means “the follower” — it follows the Pleiades across the sky.

Open on the sky map

Constellation
Taurus
Designation
α Tauri
Apparent magnitude
0.87 · 14th brightest star in the night sky
Spectral class
K5III
Distance
66.6 light-years
Position (J2000)
RA 4h 36m · Dec +16° 31′

An orange giant, around 4,500 K, like Arcturus. About 180× brighter than the faintest star the eye can see. The light you are seeing left in 1959.

Look for

It seems to belong to the V-shaped Hyades, but it is a foreground star less than half as far away.

Did you know

The Moon often passes in front of it. And Pioneer 10, drifting out of the Solar System, is heading roughly in its direction; it will pass nearby in about two million years.

Words used here

Its constellation

Part of

All stars · Field guide · Open the sky map

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