J-John Kavelaars, better known as JJ Kavelaars (born 1966), is a

Canadian Canadians () are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of their being ''C ...

astronomer An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...

who was part of a team that discovered several

moons 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 deriva ...

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 ...

Saturn Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 tim ...

Uranus Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a Supercritical fluid, supercritical phase of matter, which astronomy calls "ice" or Volatile ( ...

, and

Neptune Neptune is the eighth and farthest known planet from the Sun. It is the List of Solar System objects by size, fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 t ...

. He is also a

discoverer of minor planets This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth and main-belt asteroids, Jupiter trojans and distant objects). , the discovery of 612,011 num ...

and an investigator on the extended ''

New Horizons ''New Horizons'' is an Interplanetary spaceflight, interplanetary space probe launched as a part of NASA's New Frontiers program. Engineered by the Johns Hopkins University Applied Physics Laboratory (APL) and the Southwest Research Institut ...

'' mission, having aided in the discovery of

486958 Arrokoth 486958 Arrokoth (Provisional designation in astronomy, provisional designation ; formerly nicknamed Ultima Thule) is a trans-Neptunian object located in the Kuiper belt. Arrokoth became the farthest and most primitive List of minor planet ...

Biography

Kavelaars is a graduate of the Glencoe District High School in Glencoe, Ontario, the

University of Guelph The University of Guelph (abbreviated U of G) is a comprehensive Public university, public research university in Guelph, Ontario, Canada. It was established in 1964 after the amalgamation of Ontario Agricultural College (1874), the MacDonald I ...

, and Queen's University,

Kingston, Ontario Kingston is a city in Ontario, Canada, on the northeastern end of Lake Ontario. It is at the beginning of the St. Lawrence River and at the mouth of the Cataraqui River, the south end of the Rideau Canal. Kingston is near the Thousand Islands, ...

. He is currently an astronomer at the

Dominion Astrophysical Observatory The Dominion Astrophysical Observatory, located on Observatory Hill (Saanich), Observatory Hill, in Saanich, British Columbia, was completed in 1918 by the Canadian Government, Canadian government. The Dominion architect responsible for the bui ...

in Victoria, B.C. In the course of his work, he has been responsible for the discovery of eleven satellites (moons) of Saturn, eight of Uranus, and four of Neptune, and a hundred or so minor planets. Kavelaars is the Coordinator of the Canada–France Ecliptic Plane Survey which is part of the Canada-France-Hawaii Telescope Legacy Survey "CFHTLS": a project dedicated to the discovery and tracking of objects in the

outer Solar System The Solar SystemCapitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Sol ...

Family

He is the brother of Canadian actress Ingrid Kavelaars and Canadian fencing athlete Monique Kavelaars.

Honors

The asteroid 154660 Kavelaars was named in his honor on 1 June 2007 by his colleague David D. Balam. In 2022 Kavelaars was awarded the Canadian Astronomical Society Dunlap Award for Innovation in Astronomical Instrumentation and Software. This award recognized Kavelaars' contributions to the development and leadership of the

Canadian Astronomy Data Centre The NRC Herzberg Astronomy and Astrophysics Research Centre (NRC Herzberg, HAA) is the leading Canada, Canadian centre for astronomy and astrophysics. It is based in Victoria, British Columbia. The current director-general, as of 2021, is Luc S ...

, in particular the development of cloud-based astronomical data analysis using the CANFAR Science Platform. In 2022 Kavelaars was awarded the National Research Council Dan Wayner award for outstanding achievement in Science and Technology. This award was presented in recognition of Kavelaars' co-discovery of

and contributions to the NASA's New Horizons encounter with that object.

List of discovered minor planets

References

External links

Astronomy – John J. Kavelaars
Notable GDHS Graduates
Homepage at NRC
1966 births 21st-century Canadian astronomers Canadian people of Swedish descent * Discoverers of trans-Neptunian objects Discoverers of moons Living people Planetary scientists People from Middlesex County, Ontario {{Astronomer-stub