Jupiter LIX, provisionally known as S/2017 J 1, is an outer
natural satellite
A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body (or sometimes another natural satellite). Natural satellites are colloquially referred to as moons, a deriv ...
of
Jupiter
Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a Jupiter mass, mass more than 2.5 times that of all the other planets in the Solar System combined a ...
on a
retrograde orbit. It was reported on June 5, 2017, via a
Minor Planet Electronic Circular
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory.
Function ...
from the
Minor Planet Center
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory.
Funct ...
.
It is believed to be about 2 km in diameter.

It is a member of the
Pasiphae group. It has an average orbital distance of 23,547,105 km, with an inclination of 149.2 degrees. Its period is 734.2
days
A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours (86,400 seconds). As a day passes at a given location it experiences morning, afternoon, evening, and night. This daily cyc ...
.
References
{{DEFAULTSORT:Jupiter 59
Pasiphae group
Moons of Jupiter
Irregular satellites
Discoveries by Scott S. Sheppard
20170224
Moons with a retrograde orbit