Some interesting new information has emerged on Betelgeuse, the red supergiant that marks the left ‘armpit’ of Orion the Hunter.
1. It’s still burning Helium in its core so unlikely to go supernova until around 100,000 years.
2. It’s not as massive as previously thought. Earlier studies had shown its radius would extend to the orbit ofJupiter if placed in our solar system. This new data suggests its real radius is 60% of this.
3. It’s closer to Earth than previously measured, at 530 light years. This is 25% closer than we previously thought.
New data published in the Astrophysical Journal. Further reading here.