What Is A Wolf-Rayet Star? - Universe Today
Wolf-Rayet stars represent a final burst of activity before a huge star begins to die. These stars, which are at least 20 times more massive than the Sun, “live fast and die hard”, according ...
Stella di Wolf-Rayet - Wikipedia
Le stelle di Wolf-Rayet (spesso abbreviato in stelle WR) sono stelle massicce (almeno 20 M ⊙ alla loro nascita) molto evolute, che perdono massa a ritmi elevati per mezzo di venti stellari molto intensi e veloci (fino a oltre 2 000 k m/s).Le stelle di Wolf-Rayet perdono generalmente 10 −5 M ☉ ogni anno, un miliardo di volte la massa persa dal Sole ogni anno.
What is a Wolf-Rayet Stars? - Universe Guide
What is a Wolf-Rayet Stars? Wolf-Rayet star Facts. They are named after French Astronomers, Charles Wolf and Georges Rayet; Wolf-Rayet stars were born as massive stars, 20x more massive than the Sun.; There are only two visible Wolf-Rayet stars to the naked eye, Regor and Theta Muscae; They are known to exist in other galaxies such as in the Large Magellanic Cloud.
WR 104 - Wikipedia
WR 104 is a triple star system located about 7,500 light-years (2,300 pc) from Earth.The primary star is a Wolf-Rayet star, abbreviated as WR, with a B0.5 main sequence star in close orbit and another more distant fainter companion.. The WR star is surrounded by a distinctive spiral Wolf–Rayet nebula, often referred to as a pinwheel nebula.The rotational axis of the binary system, and likely ...
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Real Death Star Could Strike Earth | Space
A sequence of 11 frames, stacked here and colorized, show the Pinwheel system created by the binary star system known as Wolf-Rayet 104 seen by the Keck telescope in near-infrared.
Planning your time at the Fringe | Edinburgh Festival Fringe
Whether you’re a longtime visitor, a seasoned performer, or this is your first experience of the festival, the Fringe Society is here to help you make the most of your time in Edinburgh. The 2019 Edinburgh Festival Fringe will run from 02 – 26 August. There are more than 3,500 shows on offer at ...
Arches Cluster - Wikipedia
The Arches Cluster is the densest known star cluster in the Milky Way located about 100 light-years from its center, in the constellation Sagittarius (The Archer), 25,000 light-years from Earth. The discovery of this cluster was reported by Nagata et al. in 1995, and independently by Cotera et al. in 1996. Due to extremely heavy optical extinction by dust in this region, the Arches Cluster is ...
Spectacular star system discovered which could explode to ...
Spectacular star system wrapped in elegant spiral dust cloud discovered by astronomers Binary star system is believed to contain a star that is spinning extremely fast, which could produce one of the most powerful explosions in the Universe System contains a pair of massive Wolf-Rayet stars that are ...
Nébuleuse en émission — Wikipédia
Les bulles de Wolf-Rayet entourent des étoiles de type Wolf-Rayet.Celles-ci, qui sont particulièrement actives, émettent de grandes quantités de gaz, suite a des réactions thermo-nucléaire en leur coeur.. Peu fréquentes, certaines d'entre elles demeurent relativement accessibles, comme NGC 2359, la nébuleuse du casque de Thor, et NGC 6888, la nébuleuse du Croissant.