Aldebaran

American  

[al-deb-er-uhn] / ælˈdɛb ər ən /

noun

1. a first-magnitude star, orange in color, in the constellation Taurus.

---

Aldebaran British  

/ ælˈdɛbərən /

noun

1. a binary star, one component of which is a red giant, the brightest star in the constellation Taurus. It appears in the sky close to the star cluster Hyades. Visual magnitude: 0.85; spectral type: K5III; distance: 65 light years

---

Aldebaran Scientific  

/ ăl-dĕb′ər-ən /

1. A red giant star in the constellation Taurus. Aldebaran is the thirteenth brightest star in the sky, with an apparent magnitude of 0.85. Scientific name: Alpha Tauri.

---

Etymology

Origin of Aldebaran

< Arabic al the + dabarān follower (of the Pleiades)

Example Sentences

The feminist activists Judy Freespirit and Aldebaran published the “Fat Liberation Manifesto” in 1973.

From The Wall Street Journal • Nov. 28, 2025

"The security crisis in the Sahel is complex and there are no quick fixes," warned Charlie Werb, an analyst with Aldebaran Threat Consultants.

From Barron's • Oct. 20, 2025

To find Taurus, look for the constellation Orion and then peer to the north-east to find the red star Aldebaran, the star in the bull's eye.

From BBC • Nov. 9, 2024

On July 30, the crescent moon will float among shining Jupiter, red Mars, the bright star Aldebaran and the pretty Pleiades star cluster before sunrise.

From Seattle Times • Jan. 31, 2024

In ancient Egypt, Aldebaran was called ary; and the Pleiades chooa, a word which means “thousands.”

From Astronomical Curiosities Facts and Fallacies by Gore, J. Ellard