Tag Archive for 'Aldebaran'

Betelgeuse, the second brightest star in the constellation of Orion, was yellow-orange some 2,000 years ago. Image credit: ALMA / ESO / NAOJ / NRAO / E. O’Gorman / P. Kervella / Sci.News.

Betelgeuse Changed Its Color Roughly 2,000 Years Ago

Sep 5, 2022 by News Staff

A team of astronomers from the University of Jena and elsewhere has analyzed pre-telescopic records on star color from Europe, the Mediterranean, West...

The view towards the east from the Carregal do Sal megalithic cluster, at dawn at the end of April around 4,000 BC, as reconstructed using a Digital Elevation Model and Stellarium. Aldebaran, the last star to rise before the Sun, is rising directly above Serra da Estrela, the ‘mountain range of the star.’ Image credit: Fabio Silva.

Iberian Megalithic Tombs: 6,000-Year-Old Lensless Telescopes?

Jun 30, 2016 by News Staff

A team of astronomers from the UK is exploring what might be described as the first astronomical observing tool, potentially used by humans around 4,000...