Astronomers spot potential first exomoon orbiting brown dwarf

Astronomers have detected potential evidence of the first moon identified outside our solar system, SSBCrack and ScienceDaily Space and Time reported. The observations indicate that the candidate exomoon is located in the CD-35 2722 star system. Scientists made the finding using the European Southern Observatory's Very Large Telescope, according to SSBCrack. [1][4]

The candidate object features a unique structure and size compared to moons inside the solar system. ScienceDaily Space and Time reported that the object is at least as massive as Jupiter. SSBCrack and ScienceDaily Space and Time both noted that the body orbits a brown dwarf, an object that sits at the boundary between stars and planets because it lacks sufficient mass to sustain hydrogen fusion. [1][4]

The overall architecture of the system involves multiple bodies. ScienceDaily Space and Time reported that the host brown dwarf itself circles a star. Natural satellites that orbit other moons are hypothetically known as subsatellites, submoons, or moonmoons. [4][7]

The unusual findings have raised questions regarding how to classify such celestial bodies. SSBCrack and ScienceDaily Space and Time both reported that the object challenges conventional definitions of celestial bodies, leaving scientists uncertain about how to classify it. [1][4]