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Liisi Oterma
Liisi Oterma (; 6 January 1915 – 4 April 2001) was a Finnish astronomer, the first woman to get a Ph.D. degree in astronomy in Finland. She studied mathematics and astronomy at the University of Turku, and soon became Yrjö Väisälä's assistant and worked on the search for minor planets. She obtained her masters degree in 1938. From 1941 to 1965, Oterma worked as an observer at the university's observatory. She obtained her PhD in 1955 with a dissertation on telescope optics. She was the first Finnish woman to obtain a PhD in astronomy. In 1959, Oterma became a docent of astronomy and from 1965 to 1978 a professor in University of Turku. In 1971, she succeeded Väisälä as the director of the Tuorla Observatory. She was director of the astronomical-optical research institute at the University of Turku from 1971-1975. Oterma was interested in languages and spoke German, French, Italian, Spanish, Esperanto, Hungarian, English and also Arabic, for example. Oterma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turku
Turku ( ; ; sv, Åbo, ) is a city and former capital on the southwest coast of Finland at the mouth of the Aura River, in the region of Finland Proper (''Varsinais-Suomi'') and the former Turku and Pori Province (''Turun ja Porin lääni''; 1634–1997). The region was originally called Suomi (Finland), which later became the name for the whole country. As of 31 March 2021, the population of Turku was 194,244 making it the sixth largest city in Finland after Helsinki, Espoo, Tampere, Vantaa and Oulu. There were 281,108 inhabitants living in the Turku Central Locality, ranking it as the third largest urban area in Finland after the Capital Region area and Tampere Central Locality. The city is officially bilingual as percent of its population identify Swedish as a mother-tongue. It is unknown when Turku gained city rights. The Pope Gregory IX first mentioned the town ''Aboa'' in his ''Bulla'' in 1229 and the year is now used as the foundation year of Turku. Turku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1504 Lappeenranta
1504 Lappeenranta, provisional designation , is a stony background asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 23 March 1939, by Finnish astronomer Liisi Oterma at the Iso-Heikkilä Observatory, and named after the city of Lappeenranta in Finland. Orbit and classification ''Lappeenranta'' is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 2.0–2.8 AU once every 3 years and 9 months (1,358 days). Its orbit has an eccentricity of 0.16 and an inclination of 11 ° with respect to the ecliptic. The body's observation arc begins four nights prior to its official discovery observation at Turku. Physical characteristics In the Tholen classification, ''Lappeenranta'' is a common S-type asteroid. Pan-STARRS photometric survey has also characterized it as an S-type. Rotation period ''Lappeenranta'' has an ambiguous rotation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1882 Rauma
Year 188 (CLXXXVIII) was a leap year starting on Monday of the Julian calendar. At the time, it was known in the Roman Empire as the Year of the Consulship of Fuscianus and Silanus (or, less frequently, year 941 ''Ab urbe condita''). The denomination 188 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Publius Helvius Pertinax becomes pro-consul of Africa from 188 to 189. Japan * Queen Himiko (or Shingi Waō) begins her reign in Japan (until 248). Births * April 4 – Caracalla (or Antoninus), Roman emperor (d. 217) * Lu Ji (or Gongji), Chinese official and politician (d. 219) * Sun Shao, Chinese general of the Eastern Wu state (d. 241) Deaths * March 17 – Julian, pope and patriarch of Alexandria * Fa Zhen (or Gaoqing), Chinese scholar (b. AD 100) * Lucius Antistius Burrus, Roman politician (executed) * Ma Xiang, Chine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1758 Naantali
Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of ''Systema Naturae'', the starting point of modern zoological nomenclature, introducing binomial nomenclature for animals to his established system of Linnaean taxonomy. Among the first examples of his system of identifying an organism by genus and then species, Linnaeus identifies the lamprey with the name ''Petromyzon marinus''. He introduces the term ''Homo sapiens''. (Date of January 1 assigned retrospectively.) * January 20 – At Cap-Haïtien in Haiti, former slave turned rebel François Mackandal is executed by the French colonial government by being burned at the stake. * January 22 – Russian troops under the command of William Fermor invade East Prussia and capture Königsberg with 34,000 soldiers; although the city is later abandoned by Russia after the Seven Years' War ends, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1705 Tapio
Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines *Seventeen (American magazine), ''Seventeen'' (American magazine), an American magazine *Seventeen (Japanese magazine), ''Seventeen'' (Japanese magazine), a Japanese magazine Novels *Seventeen (Tarkington novel), ''Seventeen'' (Tarkington novel), a 1916 novel by Booth Tarkington *''Seventeen'' (''Sebuntiin''), a 1961 novel by Kenzaburō Ōe *Seventeen (Serafin novel), ''Seventeen'' (Serafin novel), a 2004 novel by Shan Serafin Stage and screen Film *Seventeen (1916 film), ''Seventeen'' (1916 film), an American silent comedy film *''Number Seventeen'', a 1932 film directed by Alfred Hitchcock *Seventeen (1940 film), ''Seventeen'' (1940 film), an American comedy film *''Eric Soya's '17''' (Danish: ''Sytten''), a 1965 Danish comedy film *Seventeen (1985 film), ''Seventeen'' (1985 film), a documentary film *17 Again (film), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1695 Walbeck
1695 Walbeck, provisional designation , is a carbonaceous asteroid from the central region of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 15 October 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and named after Henrik Walbeck. Classification and orbit The asteroid orbits the Sun in the central main-belt at a distance of 2.0–3.6 AU once every 4 years and 8 months (1,694 days). Its orbit has an eccentricity of 0.29 and an inclination of 17 ° with respect to the ecliptic. ''Walbeck''s observation arc begins the night after its official discovery observation. Physical characteristics In the SMASS taxonomy, the carbonaceous asteroid is characterized as a Cg-type, an intermediate between the C-type and G-type asteroids. Lightcurves In November 2006, a rotational lightcurve of ''Walbeck'' was obtained from photometric observations by French amateur astronomer Pierre Antonini. It gave a rotat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1680 Per Brahe
1680 Per Brahe, provisional designation , is a bright background asteroid from the central region of the asteroid belt, approximately in diameter. It was discovered on 12 February 1942, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland. The stony S-type asteroid has a rotation period of 3.4 hours. It is named after Swedish count and governor Per Brahe the Younger. Orbit and classification The S-type asteroid is a non-family asteroid of the main belt's background population. It orbits the Sun in the central main-belt at a distance of 2.2–3.2 AU once every 4 years and 6 months (1,643 days; semi-major axis of 2.73 AU). Its orbit has an eccentricity of 0.18 and an inclination of 4 ° with respect to the ecliptic. ''Per Brahe'' was first identified as at Heidelberg Observatory in 1902, extending the asteroid's observation arc by 40 years prior to its official discovery observation. Naming This minor planet was named for Swedish count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1679 Nevanlinna
Events January–June * January 24 – King Charles II of England dissolves the "Cavalier Parliament", after nearly 18 years. * February 3 – Moroccan troops from Fez are killed, along with their commander Moussa ben Ahmed ben Youssef, in a battle against rebels in the Jbel Saghro mountain range, but Moroccan Sultan Ismail Ibn Sharif is able to negotiate a ceasefire allowing his remaining troops safe passage back home. * February 5 – The Treaty of Celle is signed between France and Sweden on one side, and the Holy Roman Empire, at the town of Celle in Saxony (now in Germany). Sweden's sovereignty over Bremen-Verden is confirmed and Sweden cedes control of Thedinghausen and Dörverden to the Germans. * February 19 – Ajit Singh Rathore becomes the new Maharaja of the Jodhpur State a principality in India also known as Marwar, now located in Rajasthan state. * March 6 – In England, the "Habeas Corpus Parliament" (or "First Exclusion Parliament" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1559 Kustaanheimo
1559 Kustaanheimo, provisional designation , is a stony asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 20 January 1942, by Finnish astronomer Liisi Oterma at the Iso-Heikkilä Observatory near Turku in southwest Finland. The asteroid was named after Finnish astronomer Paul Kustaanheimo (1924–1997). Orbit and classification ''Kustaanheimo'' is an asteroid from the main belt's background population that does not belong to any known asteroid family. It orbits the Sun in the inner main-belt at a distance of 2.1–2.7 AU once every 3 years and 8 months (1,350 days). Its orbit has an eccentricity of 0.13 and an inclination of 3 ° with respect to the ecliptic. In March 1935, the asteroid was first identified as at the Union Observatory in Johannesburg. The body's observation arc begins at Johannesburg in the following month, with its identification as , almost 7 years prior to its official discovery obser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1558 Järnefelt
1558 Järnefelt, provisional designation , is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 65 kilometers in diameter. It was discovered on 20 January 1942, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and later named for Finnish astronomer Gustaf Järnefelt (1901–1989). Classification and orbit The dark C-type asteroid is not a member of any known asteroid family. It orbits the Sun in the outer main-belt at a distance of 3.1–3.3 AU once every 5 years and 9 months (2,113 days). Its orbit has an eccentricity of 0.03 and an inclination of 10 ° with respect to the ecliptic. ''Järnefelt'' was first identified as at Heidelberg in 1913. Its first used observation was made at Johannesburg Observatory in 1934, extending the body's observation arc by 8 years prior to its official discovery observation. Lightcurve In May 2007, a fragmentary rotational lightcurve of ''Järnefelt'' was obtained from pho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1545 Thernöe
1545 Thernöe ( ''prov. designation'': ) is an elongated background asteroid from the central region of the asteroid belt. It was discovered on 15 October 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland. The uncommon K-type asteroid has a rotation period of 16.1 hours and measures approximately in diameter. It was later named after Danish astronomer Karl August Thernöe. Orbit ''Thernöe'' orbits the Sun in the central main-belt at a distance of 2.1–3.4 AU once every 4 years and 7 months (1,684 days). Its orbit has an eccentricity of 0.24 and an inclination of 3 ° with respect to the ecliptic. It was first identified as at Heidelberg Observatory in 1906, extending the body's observation arc by 35 years prior to its official discovery observation at Turku. Naming This minor planet was named after Karl August Thernöe (1911–1987), Danish astronomer and celestial mechanic at Østervold Observatory in Copenhagen. He was also a po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1544 Vinterhansenia
1544 Vinterhansenia, provisional designation , is a dark asteroid from the inner regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 15 October 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and named for Danish astronomer Julie Vinter Hansen. Orbit and classification ''Vinterhansenia'' is classified as both C-type and X-type asteroid. It orbits the Sun in the inner main-belt at a distance of 2.1–2.6 AU once every 3 years and 8 months (1,335 days). Its orbit has an eccentricity of 0.11 and an inclination of 3 ° with respect to the ecliptic. ''Vinterhansenia'' was first identified as at Heidelberg Observatory in 1906. Its first used observation, , was also taken at Heidelberg in 1928, and extends the body's observation arc by 13 years prior to its official discovery observation at Turku in 1941. Lightcurves Two rotational lightcurves of ''Vinterhansenia'' were obtained from photometric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
