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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]
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 ...
162P/Siding Spring is a Jupiter-family comet with an orbital period of 5.3 years. It was discovered in images obtained on 10 October 2004 as part of the Siding Spring Survey . [ 1 ]
C/2024 S1 (ATLAS) (previously had the temporary designation A11bP7I) was a sungrazing comet that was discovered from the ATLAS–HKO in Hawaii on 27 September 2024. The comet passed its perihelion on 28 October 2024, at a distance of about 0.008 AU (1.2 million km; 0.74 million mi) from the barycenter of the Solar System, [1] and disintegrated.
Coin showing Caesar's Comet as a star with eight rays, tail upward. Non-periodic comets are seen only once. They are usually on near-parabolic orbits that will not return to the vicinity of the Sun for thousands of years, if ever.
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.
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]