Short answers, pulled from the story.
The Hyades cluster is approximately 153 light-years from the Sun. This distance has been confirmed by two independent methods: parallax measurements from the Hipparcos satellite and the Hubble Space Telescope, and infrared color-magnitude fitting, both of which yield the same result.
The Hyades cluster is estimated to be about 625 million years old. At this age, its heaviest original stars have already evolved into subgiants, giants, or white dwarfs, while lower-mass stars continue fusing hydrogen on the main sequence.
Five stars in the Hyades are confirmed exoplanet hosts: Epsilon Tauri (a superjovian planet, the first planet found in any open cluster), HD 285507 (a hot Jupiter), K2-25 (a Neptune-sized planet), K2-136 (a system of three planets), and TOI-4364 (a mini-Neptune). A sixth star, HD 283869, may also host a planet, but confirmation awaits additional transit detections.
The Hyades serves as a foundational rung on the cosmic distance ladder because its proximity allows direct parallax measurement. The agreement between parallax-based and infrared color-magnitude-based distance estimates, both yielding 153 light-years, provides a precise calibration point used to estimate distances to objects far outside our galaxy.
The Hyades and Praesepe (M44) share the same age, metallicity, and proper motion, and their trajectories trace back to the same region of space. Rudolf Klein-Wassink noted in 1927 that the two clusters are "probably cosmically related," indicating they formed together from the same primordial cloud of gas and dust.
In Greek mythology, the Hyades were the five daughters of Atlas and half-sisters to the Pleiades. After their brother Hyas died, the grieving sisters wept and were transformed into a cluster of stars. Their association with tears led to a longstanding connection with rain, which gave rise to the English folk name "April Rainers."