Comet Hyakutake is a comet discovered on 31 January 1996. 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.
Comet Hyakutake in 1996
The comet on the evening of its closest approach to Earth on 25 March 1996
X-ray emission from Hyakutake, as seen by the ROSAT satellite
Comet Hyakutake captured by the Hubble Space Telescope on 4 April 1996, with an infrared filter
Comet Hale–Bopp is a comet that was one of the most widely observed of the 20th century and one of the brightest seen for many decades.
Comet Hale–Bopp, shortly after passing perihelion in April 1997
The comet became a spectacular sight in early 1997.
Comet Hale–Bopp in 2001, at a distance of nearly two billion kilometres from the Sun. Credit: ESO