Hyades
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Hyades 소개
설명
The Hyades is the nearest open cluster to Earth at just 153 light-years away, located in Taurus. It spans over 5 degrees (10 full Moons) and contains several hundred stars, with the brightest forming a distinctive V-shape that marks the face of Taurus the Bull.
관측 팁
Best seen with the naked eye or binoculars — far too large for telescopes. The V-shaped asterism of bright stars is unmistakable. Note the orange giant stars Theta-1 and Theta-2 Tauri at the center of the V. Aldebaran appears nearby but is a foreground star. Best in winter.
역사
Known since antiquity and mentioned in Homer's Iliad and Odyssey. The Hyades were one of the first clusters used to calibrate the cosmic distance ladder via the convergent point method, establishing fundamental distance measurements in astronomy.
재미있는 사실
The bright star Aldebaran is NOT a member of the Hyades — it is only 65 light-years away, less than half the cluster's distance. The Hyades and the Pleiades (M45) share a similar age and motion, and may have formed from the same giant molecular cloud.
커뮤니티 사진 (1)
Credit: NASA, ESA, and STScI. License: CC BY-SA 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026