Facts about Alnath
- 08
Sharing its traditional Arabic name with Elnath, Alnath derives from a word meaning 'the butting one,' referencing the tip of the bull's horn it represents.
- 07
Approximately 430 million years ago, Alnath's progenitor star formed from the same stellar nursery that birthed most stars in the nearby Pleiades cluster.
- 06
Beta Tauri's mass approximately 5.0 times exceeds the Sun's, placing Alnath among the more massive naked-eye stars observable from Earth.
- 05
Alnath's luminosity exceeds the Sun's by approximately 5 times, making it one of the brightest naked-eye stars visible from Earth's Northern Hemisphere.
- 04
In the constellation Taurus, Alnath marks the northern horn and was historically considered part of Auriga before modern constellation boundaries were established.
- 03
Alnath rotates approximately 40 times faster than the Sun, completing one full rotation in roughly 18 hours due to its larger mass and younger age.
- 02
At approximately 5,000 Kelvin, Alnath's surface temperature classifies it as a B-type main-sequence star, making it significantly hotter than Earth's Sun.
- 01
The star Alnath, also known as Beta Tauri, shines with a magnitude of 1.65 and lies approximately 131 light-years from Earth.