Story perspectives
New Companion Star Discovered: Betelbuddy Joins Betelgeuse
10/25/2025
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Story summary
- A study in The Astrophysical Journal confirms Betelbuddy as a companion to Betelgeuse, based on data from NASA's Chandra X-ray Observatory and the Hubble Space Telescope.
- Betelbuddy is likely a young stellar object about the Sun's size and lacks signs of being a neutron star or white dwarf.
- The mass ratio with Betelgeuse suggests a new binary-star class and Betelbuddy will be observable again in November 2027 for further study.
