|
J1407
V1400 Centauri, also known as 1SWASP J140747.93−394542.6 or simply J1407, is a young, pre-main-sequence star that was eclipsed by the likely free-floating substellar object J1407b in April–June 2007. With an age around 20 million years, the star is about as massive as the Sun and is located in the constellation Centaurus at a distance of 451 light-years away from the Sun. V1400 Centauri is a member of Upper Centaurus–Lupus subgroup of the Scorpius–Centaurus association, a group of young, comoving stars close to the Sun. Name and catalogue history The star has been star catalogue, catalogued in as early as the 1990s by the Hubble Space Telescope, Hubble Guide Star Catalog, which identified the star and measured its position in a pair of photographic plates taken in 1974 and 1979. The star has been catalogued by other sky surveys, including the All Sky Automated Survey (ASAS), 2MASS, Two Micron All-Sky Survey (2MASS), Super Wide Angle Search for Planets (1SWASP), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
J1407b
J1407b is a substellar object, either a Rogue planet, free-floating planet or brown dwarf, with a large circumplanetary disk or ring system. It was first detected by automated telescopes in 2007 when its disk eclipsed the star V1400 Centauri, causing a series of dimming events for 56 days. The eclipse by J1407b was not discovered until 2010 by Mark Pecaut and Eric Mamajek, and the discovery was announced in a journal paper published in 2012. J1407b's disk spans a radius of about and consists of many rings and gaps which may indicate Exomoon, moons are forming in orbit around the object. It was initially thought to be orbiting V1400 Centauri, but more recent studies suggest that J1407b is more likely to be an unbound object that coincidentally passed in front of the star. J1407b may have been observed via high-resolution imaging in 2017, which may suggest the object is less than 6 Jupiter masses. 2007 eclipse and discovery During 7 April to 4 June 2007, telescopes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
