About: C/2001 OG108 (LONEOS)

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dbo:abstract	C/2001 OG108 (LONEOS) is a Halley-type comet with an orbital period of 48.51 years. It was discovered on 28 July 2001 by the LONEOS telescope at Lowell Observatory. Of the short-period comets with known diameters and perihelion inside the orbit of Earth, C/2001 OG108 is the second largest after Comet Swift–Tuttle. Observations taken in January and February 2002 showed that the "asteroid" had developed a small amount of cometary activity as it approached perihelion. It was subsequently reclassified as a comet. The comet came to perihelion (closest approach to the Sun) on 15 March 2002. It will come to aphelion in 2026 and the next perihelion passage is calculated to be on 6 June 2050. On 23 March 2147 the comet will pass about 0.42 AU (63 million km; 160 LD) from Earth with an uncertainty region of about ±2 million km. The comet has a rotational period of 2.38 ± 0.02 days (57.12 hr). In 2003, the comet was estimated to have a mean absolute V magnitude (H) of 13.05 ± 0.10, with an albedo of 0.03, giving an effective radius of 8.9 ± 0.7 km. Using data from Fernandez (2004–2005) JPL lists the comet with an albedo of 0.05 and a diameter of 13.6 ± 1.0 km. This comet probably represents the transition between typical Halley-family/long-period comets and extinct comets. Damocloids have been studied as possible extinct cometary candidates due to the similarity of their orbital parameters with those of Halley-family comets. (en) C/2001 OG108 (LONEOS) è una cometa periodica con un periodo orbitale di 48,41 anni, appartenente alla . Scoperta il 28 luglio 2001 dagli astronomi del programma LONEOS guidati da Michael E. Van Ness presso l'Osservatorio Lowell di Flagstaff, in Arizona, e inizialmente identificata come asteroide, la cometa C/2001 OG108 è la seconda più grande cometa di corto periodo, diametro conosciuto e perielio interno all'orbita terrestre a noi nota dopo la cometa Swift-Tuttle. (it) C/2001 OG108 (LONEOS) är en Halleykomet med en omloppstid på 48,5 år. Den upptäcktes den 28 juli 2011 med hjälp av LONEOS-teleskopet vid Lowell Observatory. Observationer i januari och februari 2002 visade att "asteroiden" hade utvecklat en liten mängd kometär aktivitet när den närmade sig perihelium. Den omklassificerades senare till en komet. Kometens förra perihelium (närmaste förhållningssätt till solen) var den 15 mars 2002. Nästa perihelium är beräknat till den 6 juni 2050. Kometen har en rotationsperiod på 2,38 ± 0,02 dygn (57,12 hr). År 2003 beräknades kometen ha en absolut V medelmagnitud (H) på 13,05 ± 0,10, med en albedo på 0,03, vilket ger en effektiv radie på 8,9 ± 0,7 km. Data från Fernandez (2004–2005) JPL listar kometen med en albedo på 0,05 och en diameter på 13,6 ±1 km. Kometen representerar förmodligen övergången mellan typiska Halleykometer och långperiodiska kometer och . Damokloider har studerats som möjliga kandidater till utdöda kometer på grund av likheten mellan deras banparametrar med Halleykometers. (sv) O C/2001 OG108 (LONEOS) é um cometa do tipo Halley com um período orbital de 48,51 anos. (pt) C/2001 OG108 (龍尼歐)是一顆哈雷型的彗星，它的軌道週期是48.51年。它於2001年7月28日被洛厄爾天文台LONEOS的望遠鏡發現。在2002年1月和2月的觀測，顯示這個天體在接近近日點的時候產生了少量的彗星的活動，因此它被重分類為彗星。這顆彗星在2002年3月15日經過近日點 (最接近太陽)，預估下次再經過近日點的時間是2050年6月6日。這顆彗星的自轉週期是2.38±0.02天 (57.12小時)。在2003年，估計這顆彗星的絕對視星等 (H)是13.05±0.10，反照率是0.03，有效的半徑是8.9±0.7公里。噴射推進實驗室使用費爾南德斯 (2004年-2005年) 中的資料列出這顆彗星的反照率是0.05，直徑是13.6±1.0公里。這顆彗星可能是哈雷族彗星/長周期彗星和熄火彗星之間典型的過渡者。達摩克型小行星因為軌道參數和咍雷族彗星相似，曾被當成熄火彗星的候選者。 (zh)
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dbp:aphelion	25.606
dbp:dimensions	13.600000 (xsd:double)
dbp:discoverer	LONEOS telescope at Lowell Observatory (en) M. E. Van Ness (en)
dbp:discoveryDate	2001-07-28 (xsd:date)
dbp:eccentricity	0.925260 (xsd:double)
dbp:epoch	2001-12-15 (xsd:date) (en)
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dbp:name	C/ (en)
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rdfs:comment	C/2001 OG108 (LONEOS) è una cometa periodica con un periodo orbitale di 48,41 anni, appartenente alla . Scoperta il 28 luglio 2001 dagli astronomi del programma LONEOS guidati da Michael E. Van Ness presso l'Osservatorio Lowell di Flagstaff, in Arizona, e inizialmente identificata come asteroide, la cometa C/2001 OG108 è la seconda più grande cometa di corto periodo, diametro conosciuto e perielio interno all'orbita terrestre a noi nota dopo la cometa Swift-Tuttle. (it) O C/2001 OG108 (LONEOS) é um cometa do tipo Halley com um período orbital de 48,51 anos. (pt) C/2001 OG108 (龍尼歐)是一顆哈雷型的彗星，它的軌道週期是48.51年。它於2001年7月28日被洛厄爾天文台LONEOS的望遠鏡發現。在2002年1月和2月的觀測，顯示這個天體在接近近日點的時候產生了少量的彗星的活動，因此它被重分類為彗星。這顆彗星在2002年3月15日經過近日點 (最接近太陽)，預估下次再經過近日點的時間是2050年6月6日。這顆彗星的自轉週期是2.38±0.02天 (57.12小時)。在2003年，估計這顆彗星的絕對視星等 (H)是13.05±0.10，反照率是0.03，有效的半徑是8.9±0.7公里。噴射推進實驗室使用費爾南德斯 (2004年-2005年) 中的資料列出這顆彗星的反照率是0.05，直徑是13.6±1.0公里。這顆彗星可能是哈雷族彗星/長周期彗星和熄火彗星之間典型的過渡者。達摩克型小行星因為軌道參數和咍雷族彗星相似，曾被當成熄火彗星的候選者。 (zh) C/2001 OG108 (LONEOS) is a Halley-type comet with an orbital period of 48.51 years. It was discovered on 28 July 2001 by the LONEOS telescope at Lowell Observatory. Of the short-period comets with known diameters and perihelion inside the orbit of Earth, C/2001 OG108 is the second largest after Comet Swift–Tuttle. The comet has a rotational period of 2.38 ± 0.02 days (57.12 hr). (en) C/2001 OG108 (LONEOS) är en Halleykomet med en omloppstid på 48,5 år. Den upptäcktes den 28 juli 2011 med hjälp av LONEOS-teleskopet vid Lowell Observatory. Observationer i januari och februari 2002 visade att "asteroiden" hade utvecklat en liten mängd kometär aktivitet när den närmade sig perihelium. Den omklassificerades senare till en komet. Kometens förra perihelium (närmaste förhållningssätt till solen) var den 15 mars 2002. Nästa perihelium är beräknat till den 6 juni 2050. Kometen har en rotationsperiod på 2,38 ± 0,02 dygn (57,12 hr). (sv)
rdfs:label	C/2001 OG108 (LONEOS) (en) C/2001 OG108 (LONEOS) (it) C/2001 OG108 (LONEOS) (pt) C/2001 OG108 (sv) C/2001 OG108 (zh)
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