Tag Archive for 'Antares'

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...

An artist’s impression of the atmosphere of Antares. As seen with the naked eye (up until the photosphere), Antares is around 700 times larger than our sun, big enough to fill the Solar System beyond the orbit of Mars (Solar System scale shown for comparison). But ALMA and VLA showed that its atmosphere, including the lower and upper chromosphere and wind zones, reaches out 12 times farther than that. Image credit: NRAO / AUI / NSF / S. Dagnello.

Radio Telescopes Reveal Lukewarm Atmosphere of Nearby Red Supergiant Star Antares

Jul 3, 2020 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) and NSF’s Karl G. Jansky Very Large Array (VLA) have created the most detailed...

This is the most detailed image ever of the red supergiant star Antares, or any other star apart from the Sun. Image credit: K. Ohnaka / ESO.

Antares: Astronomers Snap Most Detailed Image of Star That’s Not the Sun

Aug 23, 2017 by News Staff

An international team of astronomers from Chile and Germany has managed to capture an image of unprecedented detail of another star — that isn’t...