About Hyades
Description
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.
Observing Tips
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.
History
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.
Fun Facts
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.
Observe
1Properties
Position & Identifiers
2How easy to spot?
| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Easy | Easy | Easy |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| Celestron C8 (203 mm SCT) C8 203mm | Easy | Easy | Easy |
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
3Visibility
Set a location in User Settings to see visibility data.
4
Eyepiece View
5
Best Magnification
6Where this cluster sits in time
Open clusters span more than four orders of magnitude in age — from newborn OB associations to ancient, metal-rich survivors.
7
Colour-Magnitude Diagram
A cluster's colour-magnitude diagram reveals its age: the bluer the turn-off point where the main sequence bends into red giants, the younger the cluster.
Each point is a Gaia-DR3 member. Colour encodes spectral type; size reflects membership probability.
Discover
8
Light Travel Time Machine
9
Relativistic Travel
Community Photos (1)
Credit: NASA, ESA, and STScI. License: CC BY-SA 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026
Nearby in the Sky
Other targets within a few degrees — pan your scope a little and keep exploring.
Visibility scores assume a 150 mm Newton at Bortle 4.
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