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  2. Comet ISON - Wikipedia

    en.wikipedia.org/wiki/Comet_ISON

    Comet ISON, formally known as C/2012 S1, was a sungrazing comet from the Oort cloud which was discovered on 21 September 2012 by Vitaly Nevsky (Віталь Неўскі, Vitebsk, Belarus) and Artyom Novichonok (Артём Новичонок, Kondopoga, Russia).

  3. Deep Impact (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Deep_Impact_(spacecraft)

    Deep Impact observed Comet Garradd (C/2009 P1) from February 20 to April 8, 2012, using its Medium Resolution Instrument, through a variety of filters. The comet was 1.75–2.11 AU (262–316 million km) from the Sun and 1.87–1.30 AU (280–194 million km) from the spacecraft. It was found that the outgassing from the comet varies with a ...

  4. List of missions to comets - Wikipedia

    en.wikipedia.org/wiki/List_of_missions_to_comets

    Comet Mission Outcome Remarks Carrier rocket [2] ICE (ISEE-3) 12 August 1978: NASA United States / ESA: 21P/Giacobini–Zinner: Flyby Successful Extended mission; Closest approach of 7,862 kilometres (4,885 mi) at 11:02 UTC on 11 September 1985. Also made distant observations of 1P/Halley in May 1986. [3] Delta 2914: Vega 1 (5VK No.901) 15 ...

  5. List of minor planets and comets visited by spacecraft

    en.wikipedia.org/wiki/List_of_minor_planets_and...

    Space probe broke orbit on 5 September 2012 and headed to Ceres; first "big four" asteroid visited by a spacecraft, largest asteroid visited by a spacecraft at the time. 4179 Toutatis: 2.45: 1934 Chang'e 2: 2012 3.2 0.70 Flyby; [1] closest asteroid flyby, first asteroid visited by a Chinese probe. 1 Ceres: 939.4 1801 Dawn: 2015–2018: 35 0.07

  6. 12P/Pons–Brooks - Wikipedia

    en.wikipedia.org/wiki/12P/Pons–Brooks

    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]

  7. C/2012 E2 (SWAN) - Wikipedia

    en.wikipedia.org/wiki/C/2012_E2_(SWAN)

    Comet C/2012 E2 (SWAN) was a Kreutz group sungrazing comet discovered by Vladimir Bezugly in publicly available images taken by the SWAN instrument (Solar Wind ANisotropies) on board the SOHO spacecraft. It is recognized for being the first Kreutz sungrazer observed in SWAN imagery.

  8. C/2012 F6 (Lemmon) - Wikipedia

    en.wikipedia.org/wiki/C/2012_F6_(Lemmon)

    C/2012 F6 (Lemmon) is a long-period comet discovered in Leo on 23 March 2012, by A. R. Gibbs [1] using the 1.5-m reflector at the Mt. Lemmon Survey, located at the summit of Mount Lemmon in the Santa Catalina Mountains north of Tucson, Arizona, USA. Initially, the object was considered to be of asteroidal nature before later observations ...

  9. C/2012 K1 (PanSTARRS) - Wikipedia

    en.wikipedia.org/wiki/C/2012_K1_(PANSTARRS)

    C/2012 K1 (PanSTARRS) is a retrograde Oort cloud comet discovered at magnitude 19.7, 8.7 AU from the Sun on 17 May 2012 using the Pan-STARRS telescope located near the summit of Haleakalā, on the island of Maui in Hawaii (U.S.). [1] The comet started 2014 as a Northern Hemisphere object.