Damus
AkaSci 🛰️ · 1w
In the graphic below, the image in the middle inset was taken in Jan 2019 with the SPHERE instrument at ESO’s VLT, and shows Betelgeuse itself. The image in the inset on the left was taken in Dec ...
AkaSci 🛰️ profile picture
A team led by NASA Ames had also imaged Betelgeuse in Dec 2024 using the 8.1 m Gemini North telescope in Hawaii and compared it with images from 2020.

They too detected Betelgeuse B but with a lower 1.5σ confidence level.

The name Betelgeuse means “Hand of the Giant,” with “Elgeuse” being a historical Arabic name of the Orion
constellation. Given that α Ori B orbits the hand of the giant, the authors suggested its name be Siwarha, or “Her Bracelet.”

https://iopscience.iop.org/article/10.3847/2041-8213/adeaaf
3/n

1
AkaSci 🛰️ · 1w
Using data from NASA’s Hubble and ground-based telescopes at the Fred Lawrence Whipple Observatory and Roque de Los Muchachos Observatory, spanning over 10 years, scientists at the Center for Astrophysics (CfA) detected the wake left by Siwarha as it ploughs through the outer atmosphere of Betelge...