Supernovas | Facts, Information, Meaning, History & Definition
2020年8月17日 · When a star goes supernova, it – the progenitor – either becomes a neutron star or a black hole. There are also high chances that the star is completely destroyed. Some supernova explosions have a peak optical luminosity comparable to that of an entire galaxy. It then begins to fade – a process that may take several weeks or even months.
What is a Nova Star? | Definition, Summary, Classic & White Dwarf
2019年11月14日 · If you looked up its definition, you would find that a nova is a star that suddenly shows an increase in its level of brightness but slowly returns to its original state. This means a nova is a star that suddenly gets very bright for a short period of time. However, a nova is a little more complex than just a star that gets very bright.
Neutron Stars | Facts, Information, History & Definition - The Nine …
2020年6月12日 · The infalling outer envelope of a star is halted and flung outwards by a flux of neutrinos produced in the creation of the neutrons, becoming a supernova. The stellar remnant which is left becomes a neutron star. If the star remnant has around 3 solar masses, it will further collapse to become a black hole.
Rigel (ẞ Orionis) Facts - The Nine Planets
2019年12月20日 · Rigel is also a multiple star system – composed of at least four stars. Rigel is a massive blue supergiant with a luminosity of around 61.500 up to 363.000 that of the Sun. The blue star is estimated to be around 860 light-years away. Its radius is around 70 times that of the Sun, with surface temperatures of 12.100 K.
UY Scuti Facts | Constellation, Information, History & Definition
2019年12月6日 · UY Scuti is a red supergiant star, which is usually an aging star. Stars with a big enough mass transform into red supergiant stars. They are the largest known type of stars. They usually form when a star runs out of hydrogen fuel in their core and begins collapsing. The outer shells of hydrogen around the core get hot enough to begin fusion.
Cassiopeia Constellation | Facts, Information, History & Definition
2020年7月14日 · Supernova Remnants. The constellation of Cassiopeia hosts two supernova remnants. They are: 3C 10. 3C 10, also known as Tycho’s Supernova Remnant, is the aftermath of the supernova called Tycho’s star. It was a supernova of Type la, and it is one of the eight supernovae visible to the naked eye in historical records.
Alphard (α Hydrae) Star | Facts, Information, Distance, History ...
2020年7月14日 · In the more modern China, Alphard is known as the First Star of Star A Chinese asterism formed by Tau 1 Hydrae, Tau 2 Hydrae, Ukdah, 27 Hydrae, 26 Hydrae, HD 82428, and HD 82477. The Star mansion is one of the seven mansions of the Vermilion Bird. The Toyota Alphard, a minivan made by Toyota, was named after the star. Sources: Wikipedia; Star ...
Meissa (λ Orionis) | Facts, Information, Distance, History & Definition
2020年7月14日 · The primary star, Meissa, is a giant star of stellar classification O8 II. The secondary star, Lambda Orionis B, is a blue-white main-sequence star of spectral type B0.5 V. Meissa is the 11 th brightest star in Orion, and it marks the head of Orion, the celestial hunter. Meissa has an apparent magnitude of 3.33 and an absolute magnitude of -4.25.
Deneb (α Cygni) | Facts, Information, History & Definition
2020年1月30日 · Deneb is the 19 th brightest star in the night sky, situated at around 2.615 light-years / 802 parsecs away from the Sun. It has an apparent magnitude of +1.25. Being an Alpha Cygni variable star, its brightness varies between magnitudes 1.21 and – 1.29. Deneb is a blue-white supergiant star of spectral type A2 la.
R136a1 | Facts, Information, History & Definition - The Nine Planets
2019年12月6日 · Due to its nature, it will explode into a supernova before its core collapses and it will become a black hole. It is believed that R136a1 was once even more massive but lost around 15% of its mass. R136a1 is located in the R136 star cluster, which is located in the Large Magellanic Cloud – a galaxy satellite of the Milky Way.