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2 clusters · 6 sources · 7 days · First seen · Last updated

Categories: TECHNOLOGY

Exosatellite discovery around brown dwarf

Entities: Alice Zurlo · Brown dwarf (in CD‑35 2722) · Very Large Telescope · Kevin Hoy · European Southern Observatory

Overview

Astronomers announced the detection of an unusual planetary system about 71–72 light‑years from Earth. The system features a red dwarf star, a brown dwarf in orbit, and a Jupiter‑mass object that circles the brown dwarf rather than the star. The initial report, published on 25 July 2026, introduced the provisional term “exosatellite” to describe this object, noting that it does not fit traditional categories of planets or moons.

A follow‑up report on 31 July 2026 provided additional details, identifying the system as CD‑35 2722 and confirming the object's mass and orbital parameters through radial‑velocity measurements with the VLT’s CRIRES+ spectrograph. The same research team, led by Kevin Hoy, emphasized that the discovery represents a possible first exosatellite (or exomoon) beyond the Solar System and may guide future searches for similar bodies.

Timeline

  1. 7 days ago

    [TECHNOLOGY] 4 sources
    Exosatellite Discovery Around Brown Dwarf in CD-35 2722 System

    Astronomers using ESO's VLT have identified a Jupiter‑mass exosatellite orbiting a brown dwarf in the CD‑35 2722 system, a potential first moon beyond the Solar System.

  2. 13 days ago

    [TECHNOLOGY] 2 sources
    Exosatellite system 71 ly away forces new planetary classification

    A 71‑light‑year‑distant system with a red dwarf, brown dwarf and Jupiter‑mass exosatellite challenges planetary classification, prompting the term “exosatellite.”

Sources

archyworldys.com · bornelings.se · eldiario.es · scitechdaily.com · thequantumcat.space · vilaghir.hu