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4 clusters · 54 sources · 16 days · First seen · Last updated

Categories: INTERNATIONAL · TECHNOLOGY

First exomoon candidate around brown dwarf CD‑35 2722 B

Entities: Kevin Hoy · Alice Zurlo · CD‑35 2722 B · European Space Agency (ESA) · CD-35 2722

Overview

Astronomers using ESO’s Very Large Telescope and the CRIRES+ spectrograph reported on 22 July 2026 a ~0.9 Jupiter‑mass object producing a 170‑day radial‑velocity signal around the brown dwarf CD‑35 2722 B, itself a companion to the red dwarf CD‑35 2722 A. Follow‑up data released on 24 July confirmed the periodic wobble and highlighted the need for additional measurements to verify the satellite’s nature. A brief on 27 July reiterated the detection as the most convincing exolune (exomoon) candidate to date and noted the broader interest sparked by ESA’s upcoming PLATO mission, which will search for transiting Earth‑size planets later in 2026.

The discovery challenges existing classification schemes for planets, moons and sub‑stellar objects, prompting the team to use the term “exosatellite.” Researchers stress that further spectroscopic monitoring is required to refine the companion’s mass and orbit and to determine whether it should be regarded as a massive moon or a planet‑like body.

On 6 August 2026 the team emphasized that next‑generation facilities such as the Extremely Large Telescope will enable searches for smaller exomoons and deeper studies of hierarchical three‑body systems, extending the significance of this first robust exomoon detection beyond the Solar System.

Timeline

  1. about 13 hours ago

    [INTERNATIONAL] 2 sources
    First Exomoon Discovered Orbiting Brown Dwarf in CD-35 2722 System

    Astronomers led by Kevin Hoy detected the first exomoon, Jupiter‑sized, orbiting a brown dwarf in CD‑35 2722 using VLT’s CRIRES+, marking a breakthrough in extrasolar moon research.

  2. 11 days ago

    [TECHNOLOGY] 2 sources
    Exolune Detected Around Brown Dwarf CD‑35 2722 B and ESA’s PLATO Telescope Set for 2026 Launch

    An exolune candidate orbiting brown dwarf CD‑35 2722 B was announced, and ESA’s PLATO telescope, featuring 26 cameras, is slated for launch in late 2026 to hunt Earth‑like exoplanets.

  3. 14 days ago

    [TECHNOLOGY] 8 sources
    Astronomers Detect First Exomoon Candidate Orbiting Brown Dwarf CD-35 2722 B

    Astronomers have found a 0.9‑Jupiter‑mass object orbiting brown dwarf CD‑35 2722 B with a 170‑day period, marking the first plausible exomoon detection and raising classification challenges.

  4. 16 days ago

    [TECHNOLOGY] 43 sources
    First exomoon candidate found orbiting brown dwarf in CD‑35 2722 system

    Astronomers with ESO's VLT have identified a Jupiter‑mass object orbiting a brown dwarf in the CD‑35 2722 system, likely the first exomoon outside our Solar System.

Sources

aeiou.pt · arkcity.net · arroyodiario.com.ar · astronews.com · bagimsizhavacilar.com · chip.com.tr · dattelner-morgenpost.de · descopera.ro · digitaltrends.com · dnyuz.com · earthsky.org · elnacional.cat · emissoradasbeiras.pt · evreninsesi.com · exame.com · fashionsublime.com · fehmarn24.de · folhadoprogresso.com.br · freeastroscience.com · friendsofnasa.org · grenzwissenschaft-aktuell.de · hothardware.com · independent.co.uk · it-boltwise.de · kks.ch · lacronicadebadajoz.elperiodicoextremadura.com · lahora.gt · me.mashable.com · mediaindonesia.com · muensterlandzeitung.de · naukawpolsce.pap.pl · nvmb.nl · op-online.de · osul.com.br · periodicolaredaccion.com · physicsworld.com · popsci.com · primanews.org · puertenses.com.ar · revistagalileu.globo.com · ruhrnachrichten.de · rzeczpospolita.pl · sci.news · sciencemag.cz · sciencepost.fr · sea.mashable.com · spacedaily.com · stiintasitehnica.com

This summary has been updated 3 times: see revision history