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Comet Siding Spring had an apparent magnitude of 18.4 to 18.6. At the time of its discovery, it was 7.2 AU (1.08 × 10 9 km; 670,000,000 mi) from the Sun. Precovery images by the Catalina Sky Survey from 8 December 2012 were found quickly and announced with the discovery giving Comet Siding Spring a 29-day observation arc. [1]
Comet (Tsuchinshan–ATLAS), also known as the Great Comet of 2024 and formally designated as C/2023 A3, is a comet from the Oort cloud discovered by the Purple Mountain Observatory in China on 9 January 2023 and independently found by ATLAS South Africa on 22 February 2023.
C/2007 Q3 (Siding Spring), is an Oort cloud comet that was discovered by Donna Burton in 2007 at Siding Spring Observatory in New South Wales, Australia. [6] Siding Spring came within 1.2 astronomical units of Earth and 2.25 AU of the Sun on October 7, 2009. [1] The comet was visible with binoculars until January 2010. [6]
The comet was spotted with the naked eye by Piotr Guzik on 8 September at an estimated magnitude of 4.7. [10] The comet tail was up to 7.5 degrees long when imaged with CCD. [10] On 12 September 2023 the comet passed 0.84 AU (126 million km; 78 million mi; 330 LD) from Earth but was only 15 degrees from the glare of the Sun. [11]
In comet nomenclature, the letter before the "/" is either "C" (a non-periodic comet), "P" (a periodic comet), "D" (a comet that has been lost or has disintegrated), "X" (a comet for which no reliable orbit could be calculated —usually historical comets), "I" for an interstellar object, or "A" for an object that was either mistakenly ...
The 12P/Pons-Brooks comet isn't at peak viewing yet, but backyard astronomers are already capturing stunning images of its flare-ups. ... Sky-watchers have a lot to look forward to in spring of 2024.
The comet is currently moving through the Southern hemisphere and will cross the celestial equator (yellow vertical line) in 2032. The apparent loops in the comet's path are caused by the annual motion of the Earth around the Sun. With a current declination of −47° below the celestial equator, C/2014 UN 271 is best seen from the Southern ...
The Great January Comet of 1910, formally designated C/1910 A1 and often referred to as the Daylight Comet, [2] was a comet which appeared in January 1910. It was already visible to the naked eye when it was first noticed, and many people independently "discovered" the comet.