J1407b was a rogue planet that should have explained a series of eclipse-like dimming events observed on V1400 Centauri in 2007. They were recorded on automated telescopes that year but not identified until 2010.

It was initially thought to be a planet orbiting the star, but it was not found. Then it was thought to be a rogue planet, but no evidence for one was found either during a 2024 research.

Characteristic

J1407b was originally considered an exoplanet with a giant ring system many times larger than Saturn's rings. However, further analysis and the absence of repeated observations of eclipses have shown that the object is not gravitationally bound to V1400 Centauri. According to modern models, it is most likely an isolated substellar object with a protoplanetary disk, rather than a classic exoplanet with rings. There is a large gap in the protoplanetary disk that suggests the formation of a small planet, showing that planet formation around it might be underway.

Myths and misinformation

Early interpretations referred to the object as “Super Saturn” due to the alleged ring system exceeding the Saturn system by more than 200 times. However, these data were based on a single episode of the eclipse and have not been confirmed by repeated observations. Some popular science channels and Internet resources continued to spread outdated information, creating a misconception about J1407b as an exoplanet with rings. Modern publications have refuted this point of view.[1]

Trivia

  • J1407b became the first extraterrestrial object to have a complex eclipse, interpreted as a signal from a ring-shaped or disk-shaped structure.
  • The object's disk contains numerous gaps, which may be the result of the formation of moons.
  • This is one of the few candidates for a disk in a free-floating object.

References

  1. https://www.youtube.com/watch?v=EzrwL3W5wl4, video that goes in-depth about the J1407b myth.
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