Comet Hale–Bopp is a long-period 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 on April 4, 1997; the gas tail is to the left and the dust tail to the right.
The comet became a spectacular sight in early 1997.
Comet Hale–Bopp in 2001, at a distance of nearly 2.0 billion km (1.2 billion mi) from the Sun.
A comet is an icy, small Solar System body or interstellar object that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitat
Comet Hale–Bopp
…Comet Hale–Bopp (formally designated C/1995 O1) is a long-period comet that was one of the most widely observed of the 20th century and one of the brightest seen for many decades. Alan Hale and Thomas Bopp discovered Comet…
Comet 81P/Wild exhibits jets on light side and dark side, stark relief, and is dry.
Hubble image of Comet ISON shortly before perihelion.