J1407b

J1407b

ALMA radio image of V1400 Centauri and a nearby object, which might be J1407b[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 14h 07m 47.92976s[2]
Declination −39° 45′ 42.7671″[2]
Details
Mass<6[1]: 2  MJup
Database references
SIMBADdata

J1407b is a substellar object, either a free-floating planet or brown dwarf, with a massive 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 later discovered in 2010 by Mark Pecaut and Eric Mamajek, and then was announced in 2012. J1407b's disk spans a radius of about 90 million kilometers (56 million miles) and consists of many rings and gaps which may indicate moons are forming in orbit around the object. It was initially thought to be orbiting V1400 Centauri, but later studies suggest J1407b is likely an unbound object that coincidentally passed in front of the star. J1407b was potentially observed via high-resolution imaging in 2017, which may suggest the object is less than 6 Jupiter masses.

  1. ^ a b Cite error: The named reference Kenworthy2020 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).