how many moons jupiter has ?

Jupiter has 115 officially confirmed moons as of April 9, 2026. The International Astronomical Union's Minor Planet Center tracks and officially approves these discoveries. The official list updates regularly as astronomers discover smaller, distant satellites.

What the record shows

• In 1610, Galileo Galilei discovered Jupiter's four largest moons: Io, Europa, Ganymede, and Callisto [1].
• In 1892, Edward Emerson Barnard discovered Amalthea, the fifth known moon of Jupiter [2].
• On February 22, 2023, the Minor Planet Center announced three new moons, bringing the official total to 95 [3].
• On April 30, 2025, the Minor Planet Center added two more moons to the official register, increasing the count to 97 [3].
• On March 16, 2026, four additional moons were confirmed, pushing the total to 101 [4].
• On April 9, 2026, fourteen more moons were officially recognized, setting the total count at 115 [3].

Official line vs ground reality

Official line: Jupiter officially has 115 confirmed moons as of April 9, 2026 [3]. The International Astronomical Union's Minor Planet Center only registers a moon after astronomers observe its orbit over months or years to prove its path [5].

Ground reality: Jupiter has hundreds of small rocks orbiting it that are not yet officially confirmed. Astronomers like Scott Sheppard track small kilometer-sized outer irregular moons that telescopes have only captured briefly [3, 5]. Jupiter also acquires and loses objects over time. For example, Comet Shoemaker-Levy 9 orbited as a temporary moon for 20 to 30 years before crashing into Jupiter in 1994 [6]. The evidence supports the ground reality that Jupiter's physical satellite count is much higher than 115, but unverified objects remain off the official tally [3, 5].

Myths you will hear

• Myth: Jupiter has the most moons of any planet in the solar system.
• Reality: Jupiter held this record for a long time, but Saturn has more confirmed moons. As of June 2026, Saturn has 293 confirmed moons, compared to Jupiter's 115 [3, 7].
• Myth: All of Jupiter's moons stay in stable orbits forever.
• Reality: Jupiter's two innermost moons, Metis and Adrastea, are gradually moving closer to the planet and will eventually crash into it, while distant irregular moons can be captured or pulled away over time [6].

For your exam, or your next step

In competitive exams like the UPSC, SSC, or school science papers, space science questions check your knowledge of solar system facts and planetary records. Quote the official count of 115 confirmed moons and specify the date, as discovery totals change frequently [3]. Study the four Galilean moons next, as they frequently appear in questions about solar system geography.