Comet Hyakutake (formally designated C/1996 B2 (Hyakutake)) is a comet discovered on 31 January 1996.[1] It was dubbed the Great Comet of 1996; its passage to within 0.1 AU (15 Gm) of the Earth on 25 March was one of the closest cometary approaches of the previous 200 years. Reaching an apparent visual magnitude of zero and spanning nearly 80°, Hyakutake appeared very bright in the night sky and was widely seen around the world. The comet temporarily upstaged the much anticipated Comet Hale–Bopp, which was approaching the inner Solar System at the time.
Hyakutake is a long-period comet that passed perihelion on 1 May 1996. Before its most recent passage through the Solar System, its orbital period was about 17,000 years,[3][5] but the gravitational perturbation of the giant planets has increased this period to 70,000 years.[3][5] This is the first comet to have an X-ray emission detected, which is most likely the result of ionised solar wind particles interacting with neutral atoms in the coma of the comet. The Ulysses spacecraft fortuitously crossed the comet's tail at a distance of more than 500 million km (3.3 AU; 310 million mi) from the nucleus, showing that Hyakutake had the longest tail known for a comet.
^ abNakamura, T.; Nakano, S. (22 December 2014). "Comet 1996 B2". International Astronomical Union Circular (6299): 1. Retrieved 8 February 2023. Comet was discovered on 1996 January 30.8 UT (local time: January 31)
^"Comet Hyakutake: Orbital elements and 10-day ephemeris". European Southern Observatory. Archived from the original on 3 February 2009.
^ abcdefHorizons output (30 January 2011). "Barycentric Osculating Orbital Elements for Comet Hyakutake (C/1996 B2)". Archived from the original on 3 July 2013. Retrieved 30 January 2011. (Horizons Archived 2019-06-05 at the Wayback Machine)
^C/1996 B2 at the JPL Small-Body Database
Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
^ abCite error: The named reference jbaa was invoked but never defined (see the help page).
CometHyakutake (formally designated C/1996 B2 (Hyakutake)) is a comet discovered on 31 January 1996. It was dubbed the Great Comet of 1996; its passage...
Hyakutake may refer to: CometHyakutake, a comet discovered in 1996 Gengo Hyakutake (1882–1976), Imperial Japanese Navy admiral Harukichi Hyakutake (1888–1947)...
astronomer who discovered Comet C/1996 B2, also known as CometHyakutake on January 31, 1996, while using 25×150 binoculars. Hyakutake graduated from the Kyushu...
The Great Comet of 1882 is a member of the Kreutz group Austrian astronomer Edmund Weiss sketched the Great Comet of 1861 CometHyakutake (X-ray, ROSAT...
approximately 5 km (3 mi). The nucleus is similar in size to CometHyakutake and many short-period comets such as 2P/Encke, 7P/Pons-Winnecke, 8P/Tuttle, 14P/Wolf...
around 1,800 AU. CometHyakutake, discovered in 1996 by amateur astronomer Yuji Hyakutake, has an outbound aphelion of 3,500 AU. Comet McNaught, discovered...
million years. Comets Machholz 1 and Hyakutake C/1996 B2 are possible examples of such comets. They have atypical chemical makeups for comets in the Solar...
Comet West 70,000 AU (1.1 light-years) C/1999 F1 (Catalina) 66,600 AU (1.05 light-years) C/2012 S4 (PANSTARRS) 5700 AU (barycentric) CometHyakutake (C/1996...
when CometHyakutake's tail was found to stretch to some 550 million kilometers in length. The maximum apparent magnitude attained by this comet was −10...
Great Comet of 1556 and cometHyakutake have approached in a comparable distance since then. Halley's Comet#1456 Great Comet of 1556 Great Comet of 1577...
methane. In 1996, ethane was detected in CometHyakutake, and it has since been detected in some other comets. The existence of ethane in these distant...
2018. Retrieved January 3, 2018. James, N.D. (1998). "Comet C/1996 B2 (Hyakutake): The Great Comet of 1996". Journal of the British Astronomical Association...
Cityhopper Flight 433 crashes at Amsterdam Airport Schiphol. 1996 – CometHyakutake is imaged by the USA Asteroid Orbiter Near Earth Asteroid Rendezvous...
longest known cometary tail until measurements in 1996 showed that CometHyakutake's tail was almost twice as long. There is a painting in the National...
technology involved many significant events, listed below. January 30 – CometHyakutake is discovered. February 17 – NEAR Shoemaker spacecraft launched. The...
Titan. Methane and ethane have also been detected in the tail of the cometHyakutake. Chemical analysis showed that the abundances of ethane and methane...
presence of methane ice Halley's CometCometHyakutake – terrestrial observations found ethane and methane in the comet Extrasolar planets – methane was...
P.F. (May 1998). "Deuterated Water in Comet C/1996 B2 (Hyakutake) and Its Implications for the Origin of Comets". Icarus. 133 (1): 147–162. Bibcode:1998Icar...
injuring 1,400. An amateur astronomer from southern Japan discovers CometHyakutake; it will pass very close to the Earth in March. February 3 – The 6...
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