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Hilkka Rantaseppä-Helenius
Hilkka Rantaseppä-Helenius (1925–1975) was a Finnish astronomer. Rantaseppä-Helenius began studying mathematics in hopes of becoming a teacher. Finnish astronomer Yrjö Väisälä inspired her to become an astronomer instead. Helenius, as a daughter of a farmer, was among the lucky few astronomers that had the privilege of having an observatory at their own corral. Rantaseppä-Helenius worked on observing minor planets. She worked as an assistant at Tuorla Observatory from 1956 to 1962. In 1962 she became an observer when a vacancy became available. She remained an observer until 1975. She was also involved in building the Kevola Observatory by Tähtitieteellis-optillinen seura (Astronomy-Optical Society) on her own property in 1963. Rantaseppä-Helenius died at age 50 in an accident. The Florian asteroid 1530 Rantaseppä was named in her memory. References 1925 births 1975 deaths Finnish astronomers Women astronomers Astronomy-optics society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paimio
Paimio (; sv, Pemar) is a town and municipality of Finland. It is located in the province of Western Finland and is part of the Southwest Finland region. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Finnish. Paimio centre is called Vista, divided by the church hill to Upper Vista (Ylä-Vista) and Lower Vista (Ala-Vista). Important buildings Paimio is best known for Paimio Sanatorium operating as a part of Turku University Hospital. It was built in 1932 and designed by architect Alvar Aalto and originally served as a tuberculosis sanatorium. Notable persons * Jarno Koskiranta, ice hockey player * Jussi Ranta, sports journalist and producer * Mika Ojala, footballer * Tero Koskiranta, ice hockey player * V. J. Sukselainen, politician International relations Twin towns — Sister cities Paimio is twinned with: * Audru Parish, Estonia * Ljungby Municipality, Sweden * Zele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yrjö Väisälä
Yrjö Väisälä (; 6 September 1891 – 21 July 1971) was a Finnish astronomer and physicist. His main contributions were in the field of optics. He was also active in geodetics, astronomy and optical metrology. He had an affectionate nickname of ''Wizard of Tuorla'' (Observatory/Optics laboratory), and a book with the same title in Finnish describes his works. His discoveries include 128 minor planets and 3 comets. His brothers were mathematician Kalle Väisälä (1893–1968) and meteorologist Vilho Väisälä (1889–1969). His daughter Marja Väisälä (1916–2011) was an astronomer and discoverer of minor planets. Väisälä was a fervent supporter of Esperanto, presiding over the ''Internacia Scienca Asocio Esperantista'' ("International Association of Esperanto Scientists") in 1968. Optician He developed several methods for measuring the quality of optical elements, as well as a lot of practical methods of manufacturing said elements. This allowed the constru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planets
According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor planet'', but that year's meeting reclassified minor planets and comets into dwarf planets and small Solar System bodies (SSSBs).Press release, IAU 2006 General Assembly: Result of the IAU Resolution votes International Astronomical Union, August 24, 2006. Accessed May 5, 2008. Minor planets include s ( |
Tuorla Observatory
Tuorla Observatory is the Department of Astronomy at the University of Turku, southwest Finland. It is the largest astronomical research institute in Finland. Together with the Space Research Laboratory at the Physics Department of the University of Turku, it forms the Väisälä Institute of Space Physics and Astronomy (VISPA). History Tuorla Observatory was established on April 29, 1952 by professor Yrjö Väisälä. A new observatory was needed because the old Iso-Heikkilä Observatory close to the centre of Turku started suffering from heavy light pollution from the nearby city and especially the industrial areas to the south of the observatory. A new place was found in Tuorla, which is one of the small villages in (former) Piikkiö municipality. It is located about 12 kilometres from Turku towards Helsinki. The first part of the observatory contained a main building and a 51 meter long tunnel for optical research. Due to the growing size of the department, new parts to it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kevola Observatory
The Kevola Observatory is located in Kevola in Paimio in South-Western Finland, some 35 km east from the city of Turku. The observatory is currently owned by ''Turun Ursa ry'', a local astronomical association operating in Turku area. The buildings of the observatory include an observatory dome, a zenith observatory, and a house for recording observations. Kevola Observatory has code 064 in the IAU/MPC observatory list. The main-belt asteroid 1540 Kevola was named after the observatory. History The observatory was built in 1963 by ''Tähtitieteellis-optillinen seura'' (Astronomy-Optical Society) on a small hill on lands of the home farm of Hilkka Rantaseppä-Helenius. She worked at the time as an observer at Tuorla Observatory of University of Turku. The association was founded by Yrjö Väisälä, Liisi Oterma, Hilkka Rantaseppä-Helenius, and other astronomers working at University of Turku. The association was terminated in 1983. In 1986 the observatory buildin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1530 Rantaseppä
1530 Rantaseppä, provisional designation , is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. Discovered by Yrjö Väisälä at Turku Observatory in 1938, it was later named after Finnish astronomer Hilkka Rantaseppä-Helenius. Discovery ''Rantaseppä'' was discovered on 16 September 1938, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. Two night later, the body was independently discovered by Belgian astronomer Eugène Delporte at Uccle Observatory. The body's observation arc begins at Uccle, one day after its official discovery observation at Turku. Classification and orbit ''Rantaseppä'' is a member of the Flora family of stony asteroids, one of the largest families of the main belt. It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,231 days). Its orbit has an eccentricity of 0.20 and an inclination of 4 ° w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
