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- P/2016 BA14 (PanSTARRS) is a near-Earth object and periodic comet of the Jupiter family, that was radar imaged at distance of 2.2 million miles (3.5 million km, or 9 lunar distances) during a flyby of Earth in 2016. This enabled the size of the nucleus to be calculated at about 1 km (0.62 mi) in diameter. Four noted aspects to P/2016 BA14 are that it was discovered as an asteroid first, it was much bigger than expected going from perhaps 125 meters to 1000 meters, it was the closest approach by a comet since 1770, and finally, it has a very similar orbit as numbered comet 252P/LINEAR, and may be related to it (e.g. split off of). The object had a unique history in that when it was discovered in January 2016 by a Pan-STARRS telescope, it was thought to be an asteroid and went by a provisional minor planet designation 2016 BA14. Astronomer Denis Denisenko noted the body's orbit was very similar to 252P/LINEAR, which led to a follow up observation by the Lowell Discovery Telescope. The body showed a tail, identifying it as a probable comet and then named P/2016 BA14. The similarity of the orbits of P/2016 BA14 and 252P/LINEAR suggested that P/2016 BA14 may have split off from 252P/LINEAR. P/2016 BA14 was bigger than predicted when observed by astronomical radar; it was estimated to be perhaps 125 meters but was about 1 km in diameter. One reason it was hard to predict its size, is because it reflects about 3% of the light, a very low albedo. P/2016 BA14 was said to be the closest approach of Earth by a comet since 1770 when Lexell's Comet is calculated to have passed within 1.4 million miles (2.2 million kilometers) of Earth according to Sky & Telescope magazine. The P/2016 BA14 flyby of Earth in 2016 was noted as the third closest approach of a comet to Earth. Another close approach by a comet in modern times was Comet IRAS–Araki–Alcock (aka C/1983 H1) in 1983. After P/2016 BA14's flyby in 2016, it is calculated that is the closest it will be to Earth for at least the next 150 years. P/2016 BA14 was noted as an opportunity to study comets more closely. (en)
- × P/2016 BA14 (PANSTARRS) è una cometa periodica appartenente alla famiglia delle comete gioviane. La cometa è stata probabilmente originata dalla scissione del nucleo di una preesistente cometa che ha dato origine anche ad un'altra cometa. Al momento della scoperta, il 22 gennaio 2016, è stata ritenuta un asteroide, in seguito ci si è accorti della sua natura cometaria e sono state scoperte immagini di prescoperta risalenti al 1º dicembre 2015. (it)
- P/2016 BA14 (PANSTARRS) — одна з короткоперіодичних комет сім'ї Юпітера. Ця комета була відкрита 22 січня 2016 року; як об'єкт 19.6m. Спочатку вважалася астероїдом, поки не проявила свій кометний характер. Була зафіксована на зображеннях, що передували відкриттю починаючи з 1 грудня 2015 року. (uk)
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- Radar images of from its 2016 Earth flyby (en)
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- × P/2016 BA14 (PANSTARRS) è una cometa periodica appartenente alla famiglia delle comete gioviane. La cometa è stata probabilmente originata dalla scissione del nucleo di una preesistente cometa che ha dato origine anche ad un'altra cometa. Al momento della scoperta, il 22 gennaio 2016, è stata ritenuta un asteroide, in seguito ci si è accorti della sua natura cometaria e sono state scoperte immagini di prescoperta risalenti al 1º dicembre 2015. (it)
- P/2016 BA14 (PANSTARRS) — одна з короткоперіодичних комет сім'ї Юпітера. Ця комета була відкрита 22 січня 2016 року; як об'єкт 19.6m. Спочатку вважалася астероїдом, поки не проявила свій кометний характер. Була зафіксована на зображеннях, що передували відкриттю починаючи з 1 грудня 2015 року. (uk)
- P/2016 BA14 (PanSTARRS) is a near-Earth object and periodic comet of the Jupiter family, that was radar imaged at distance of 2.2 million miles (3.5 million km, or 9 lunar distances) during a flyby of Earth in 2016. This enabled the size of the nucleus to be calculated at about 1 km (0.62 mi) in diameter. Four noted aspects to P/2016 BA14 are that it was discovered as an asteroid first, it was much bigger than expected going from perhaps 125 meters to 1000 meters, it was the closest approach by a comet since 1770, and finally, it has a very similar orbit as numbered comet 252P/LINEAR, and may be related to it (e.g. split off of). (en)
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- P/2016 BA14 PANSTARRS (it)
- P/2016 BA14 (PanSTARRS) (en)
- P/2016 BA14 (PANSTARRS) (uk)
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