Tag Archive for 'Luminosity'

An artist’s impression of the accreting black hole LID-568 in the early Universe. Image credit: NOIRLab / NSF / AURA / J. da Silva / M. Zamani.

Astronomers Spot Early Universe’s Fastest-Feeding Black Hole

Nov 4, 2024 by News Staff

Named LID-568, this 7.2-million-solar-mass black hole appears to be feeding on matter at a rate 40 times its Eddington limit and is seen as it existed...

Graphical depiction of Betelgeuse and the Betelbuddy. Image credit: Lucy Reading-Ikkanda / Simons Foundation.

Betelgeuse is a Binary Star, New Research Suggests

Oct 23, 2024 by News Staff

Betelgeuse, also known as Alpha Orionis or Alpha Ori, is the second-closest red supergiant to Earth. From November 2019 to March 2020, this star experienced...

Hidden in this deep sky image (left) is Uma3/U1, a miniscule group of stars (right) bound together by their own gravity in orbit around the Milky Way Galaxy. Image credit: CFHT / S. Gwyn / S. Smith.

Astronomers Discover Faintest Known Milky Way Satellite

Apr 1, 2024 by Enrico de Lazaro

Ursa Major III/UNIONS 1 (UMa3/U1 for short) is the least luminous and lowest-mass Milky Way satellite ever discovered, and possibly one of the most dark...