vy canis majoris造句

• :Here's the link to our article : VY Canis Majoris.
• The first known record of VY Canis Majoris is in the star catalogue of J閞鬽e Lalande, on March 7, 1801.
• VY Canis Majoris also illustrates the problem of defining the " surface " ( and so the radius ) of very large stars.
• VY Canis Majoris is one of the largest stars known, a remote red supergiant located around 3800 light-years away from Earth.
• VY Canis Majoris is a single star categorized as a semiregular variable with an estimated period of 2, 000 days . It has an average density of 5 to 10 mg / m 3.
• If placed at the center of the Solar System, VY Canis Majoris's surface would extend beyond the orbit of Jupiter, although there is still considerable variation in estimates of the radius.
• If placed at the center of the Solar System, VY Canis Majoris's surface would extend beyond the orbit of Jupiter, although there is still considerable variation in estimates of the radius, with some making it larger than the orbit of Saturn.
• Although most class M stars are red dwarfs, most giants and some supergiants such as VY Canis Majoris, Antares and Betelgeuse are also class M . Furthermore, the hotter brown dwarfs are late class M . This is usually in the range of M6.5 to M9.5.
• Serkowski measured CP of q = 7 \ times 10 ^ {-3 } for the red supergiant NML Cygni and q = 2 \ times 10 ^ {-3 } in the long period variable M star VY Canis Majoris in the H band, ascribing the CP to multiple scattering in circumstellar envelopes.