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Even at its minimum estimated diameter, C/2014 UN 271 is the largest Oort cloud comet discovered, being more than 50 times larger than a typical comet which is less than 2 km (1.2 mi) in diameter. The previous largest known long-period comet was C/2002 VQ 94 (LINEAR) with a diameter of 96 km (60 mi), [ 35 ] followed by Comet Hale–Bopp at 74 ...
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]
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.
Telescopes in space have provided stunning new images of Comet A3, the so-called “comet of the century”.. The object – which has the full name C/2023 A3 (Tsuchinshan–ATLAS) – was found ...
Comet Lovejoy, formally designated C/2011 W3 (Lovejoy), is a long-period comet and Kreutz sungrazer. It was discovered in November 2011 by Australian amateur astronomer Terry Lovejoy. The comet's perihelion took it through the Sun's corona on 16 December 2011, after which it emerged intact, though greatly impacted by the event. [ambiguous]
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.
The comet, also designated C/2023 A3, was discovered last year and is named for the observatories in China and South Africa that spied it. It came from what’s known as the Oort Cloud well beyond ...
12P/Pons–Brooks is a periodic comet with an orbital period of 71 years. [9] Comets with an orbital period of 20–200 years are referred to as Halley-type comets.It is one of the brightest known periodic comets, reaching an absolute visual magnitude of about 5 in its approach to perihelion. [2]