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Comet McNaught as the Great Comet of 2007. A great comet is a comet that becomes exceptionally bright. There is no official definition; often the term is attached to comets such as Halley's Comet, which during certain appearances are bright enough to be noticed by casual observers who are not looking for them, and become well known outside the astronomical community.
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. [11] [12] [13] Alan Hale and Thomas Bopp discovered Comet Hale–Bopp separately on July 23, 1995, before it became visible to the naked eye.
The comet was dubbed the Great Comet of 2007 by Space.com. [10] On 13 and 14 January 2007, the comet attained an estimated maximum apparent magnitude of −5.5. [11] It was bright enough to be visible in daylight about 5°–10° southeast of the Sun from 12 to 14 January. [12]
The comet made its closest approach to Earth on 16 September 1882 at 0.99 AU and then came to perihelion (closest approach to the Sun) the next day on 17 September. [11] Reaching a peak magnitude of –17, some sources claim that C/1882 R1 is the brightest comet ever recorded in history. [7] [12] [13]
A comet that orbits the Sun every 160,000 years will appear in the night sky this week, offering a rare chance. The Comet C/2024 G3 (ATLAS) is expected to be the brightest comet in nearly 20 years ...
Comet Ikeya–Seki, formally designated C/1965 S1, 1965 VIII, and 1965f, was a long-period comet discovered independently by Kaoru Ikeya and Tsutomu Seki.First observed as a faint telescopic object on 18 September 1965, the first calculations of its orbit suggested that on October 21, it would pass just 450,000 km (280,000 mi) above the Sun's surface, and would probably become extremely bright.
The comet, known as C/2024 G3 or ATLAS, could be the brightest of 2025, but it’s too early to tell, said Bill Cooke, lead of the National Aeronautics and Space Administration’s Meteoroid ...
Comet Hyakutake (formally designated C/1996 B2) 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.