2006-09-19 14:31:02 · 6 answers · asked by NANETTE B 1 in Science & Mathematics ➔ Astronomy & Space
Aldebaran, (α Tau / α Tauri / Alpha Tauri), is the brightest star in the constellation Taurus and one of the brightest stars in the nighttime sky. Because of its location in the head of Taurus, it has historically been called the Bull's Eye.
Its name is derived from the Arabic الدبران al-dabarān meaning "the follower", a reference to the way the star follows the Pleiades star cluster in its nightly journey across the sky. Aldebaran has the appearance of being the brightest member of the more scattered Hyades cluster, which is the closest star cluster to Earth. However, it is merely located in the line of sight between the Earth and the Hyades, and is actually an independent star.
It is known as 毕宿五 (Bìxiŭwŭ, the Fifth Star of the Net) in Chinese.
Aldebaran is a K5 III star, which means it is orangish, large, and has moved off of the main sequence by using all its hydrogen fuel. It has a minor companion (a dim M2 dwarf orbiting at several hundred AU). Now primarily fusing helium, the main star has expanded to a diameter of approximately 5.3 × 107 km, or about 38 times the diameter of the Sun. The Hipparcos satellite has measured it as 65.1 light years away, and it shines with 150 times the Sun's luminosity. Taken together this distance and brightness makes it the 14th brightest star, having an apparent magnitude of 0.87. It is slightly variable, of the irregular variable type, by about 0.2 magnitude.
In 1997, a possible large planet (or small brown dwarf) companion was reported, with a mass equalling that of 11 Jupiters and orbiting at a distance of 1.35 AU.
Aldebaran is one of the easiest stars to find in the night sky, partly due to its brightness and partly due to its spatial relation to one of the more noticeable asterisms in the sky. If one follows the three stars of Orion's belt from left to right (in the Northern Hemisphere) or right to left (in the Southern), the first bright star found by continuing that line is Aldebaran.
The unmanned Pioneer 10 spacecraft was last reported to have been heading toward Aldebaran. Assuming the spacecraft avoids some form of collision, the spacecraft will arrive at Aldebaran in 2 million years.
2006-09-19 14:39:58 · answer #1 · answered by mawi 2 · 0⤊ 0⤋
I think you mean Aldebaran.It is the brightest, and therefore the Alpha, star of the constellation Taurus.
The brightest star in the constellation Taurus and the fourteenth brightest in the sky. This impressive star is 45 times the solar radius and lies 19 parsecs from the Earth. Aldebaran is a spectral type K5 III star that is orange and red in colour and lies 68 light years away from the Earth. It has an apparent magnitude of 0.85 and a absolute magnitude of -0.3. This irregular variable has two companions of 11th and 13th magnitude that are separated 122” and 30” respectively from Aldebaran.
Aldebaran lays behind the open cluster Hyades and is also one of the Royal Stars of Persia.
2006-09-19 21:34:48 · answer #2 · answered by scoop405106 1 · 1⤊ 0⤋
the star calles ade baran is a most industrious star in milky way galaxy..because he clean all barangay..he is also the baranggay aid..baran is from the root word of barrangay
2006-09-20 02:49:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Do you mean Aldebaran? It's the bright star in Taurus. Look it up on Wikipedia.
2006-09-19 21:35:07 · answer #4 · answered by kris 6 · 0⤊ 0⤋
I think you mean Aldebaran. Its one of the brighter stars in the sky...
2006-09-19 21:38:01 · answer #5 · answered by jarm 4 · 0⤊ 0⤋
ask this guys
2006-09-19 22:06:20 · answer #6 · answered by Anonymous · 0⤊ 2⤋