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Neutron stars are stellar remnants produced when a star of around 8–9 solar masses or more explodes in a supernova at the end of its life. They are usually produced by stars of less than 20 solar masses, although a more massive star may produce a neutron star in certain cases. 4U 1820-30: 9.1 Pulsar: PSR B1257+12: 10 Pulsar: Orbited by three ...
A red dwarf is the smallest kind of star on the main sequence. Red dwarfs are by far the most common type of fusing star in the Milky Way, at least in the neighborhood of the Sun. However, due to their low luminosity, individual red dwarfs cannot be easily observed. From Earth, not one star that fits the stricter definitions of a red dwarf is ...
If you are interested in astronomy, you may want to learn some of the terms and concepts used by astronomers and astrophysicists. This webpage provides a glossary of astronomy, with definitions and explanations of various topics, such as celestial bodies, cosmology, spectroscopy, and more. You can also find links to other related webpages on Wikipedia, such as Suzuki RM series, Swamp Song, and ...
It can heat water unevenly, leading to less than stellar results. Once your water has come to a boil, pour it over a tea bag in a heat-safe mug, or add to a pot with the appropriate amount of tea ...
The abbreviation is not always a short form of the word used in the clue. For example: "Knight" for N (the symbol used in chess notation) Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE.
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It was first noticed in 1999 using data from the Hipparcos satellite, and was estimated to pass less than 1.3 light-years (0.40 pc) from the Sun in 1.4 million years. With the release of Gaia 's observations of the star, it has since been refined to a much closer 0.178 light-years (0.055 pc), close enough to significantly disturb objects in the ...