List of minor planets and comets visited by spacecraft
The following tables list all minor planets and comets that have been visited by spacecraft.
List of minor planets visited by spacecraft
|1 Ceres||952||January 1, 1801||Dawn||2014–present||approx. 200 (planned)||0.42||Dawn took its first "close up" picture of Ceres in December 2014, and entered orbit in March 2015||First dwarf planet visited by a spacecraft, largest asteroid visited by a spacecraft|
|4 Vesta||529||March 29, 1807||Dawn||2011–2012||approx. 200||0.76||Dawn broke orbit on 5 September 2012 and headed to Ceres, where it arrived in March 2015||First "big four" asteroid visited by a spacecraft, largest asteroid visited by a spacecraft at the time|
|21 Lutetia||120×100×80||November 15, 1852||Rosetta||2010||3,162||64.9||Flyby on 10 July 2010||Largest asteroid visited by a spacecraft at the time|
|243 Ida||56×24×21||September 29, 1884||Galileo||1993||2,390||152||Flyby; discovered Dactyl||First asteroid with a moon visited by a spacecraft, largest asteroid visited by spacecraft at the time|
|253 Mathilde||66×48×46||November 12, 1885||NEAR Shoemaker||1997||1,212||49.5||Flyby||Largest asteroid visited by a spacecraft at the time|
|433 Eros||13×13×33||August 13, 1898||NEAR Shoemaker||1998–2001||0||0||1998 flyby; 2000 orbited (first asteroid studied from orbit); 2001 landing||First asteroid landing, first asteroid orbited by a spacecraft, first near-Earth asteroid (NEA) visited by a spacecraft|
|951 Gaspra||18.2×10.5×8.9||July 30, 1916||Galileo||1991||1,600||262||Flyby||first asteroid visited by a spacecraft|
|2867 Šteins||4.6||November 4, 1969||Rosetta||2008||800||302||Flyby||First asteroid visited by the ESA|
|4179 Toutatis||4.5×~2||February 10, 1934||Chang'e 2||2012||3.2||0.70||Flyby||Closest asteroid flyby, first asteroid visited by China|
|5535 Annefrank||4.0||March 23, 1942||Stardust||2002||3,079||1230||Flyby|
|9969 Braille||2.2×0.6||May 27, 1992||Deep Space 1||1999||26||12.7||Flyby; followed by flyby of Comet Borrelly|
|25143 Itokawa||0.5×0.3×0.2||September 26, 1998||Hayabusa||2005||0||0||Landed; returned dust samples to Earth||First asteroid with returned samples, smallest asteroid visited by a spacecraft, first asteroid visited by a non-NASA spacecraft|
- Those without images either only have non-free images (Itokawa) or very-low-resolution images (Braille).
In addition to these asteroids, two asteroids have been imaged by spacecraft at distances too large to be able to resolve features (over 100,000 km), and thus not described as "visited". Asteroid 132524 APL was imaged by the New Horizons probe in 2006 at a distance of 101,867 km, and 2685 Masursky by the Cassini in 2000 at a distance of 1,600,000 km. The Hubble Space Telescope, which is a spacecraft in Earth orbit, has imaged several large asteroids, including 2 Pallas and 3 Juno.
List of minor planets targeted for spacecraft visitation
The following table lists minor planets that are planned to be visited by spacecraft. Dwarf planets are also included.
|134340 Pluto||2344||February 18, 1930||New Horizons||USA||2015||Flyby – July 2015 (dwarf planet)|
|101955 Bennu||~0.5||September 11, 1999||OSIRIS-REx||USA||2020||Future planned landing|
|65803 Didymos||~1 (+.15)||April 11, 1996||AIDA||EU||2022||Proposal|
|(162173) 1999 JU3||~1||May 10, 1999||Hayabusa 2||Japan||2018||Orbit expected June 2018 – December 2019. Several landers and sample collecting touchdowns planned.|
List of minor planets formerly targeted for spacecraft visitation
Former targets (were at one time proposed as a target).
|Siwa, 140140 Siwa||103||October 13, 1874||Rosetta||2007||Abandoned target|
|Hamburga, 449449 Hamburga||86||October 31, 1899||CRAF||1998||Mission cancelled|
|Geographos, 16201620 Geographos||5.1×1.8||September 14, 1951||Clementine||1995||Abandoned target|
|van Albada, 20192019 van Albada||September 28, 1935||NEAR||1998||Abandoned target|
|Shipka, 25302530 Shipka||July 9, 1978||Rosetta||2007||Abandoned target|
|Rodari, 27032703 Rodari||March 29, 1979||Rosetta||2007||Abandoned target|
|McAuliffe, 33523352 McAuliffe||2–5||February 6, 1981||Deep Space 1||1998||Abandoned target|
|Mimistrobell, 38403840 Mimistrobell||October 9, 1980||Rosetta||2007||Abandoned target|
|Wilson–Harrington, 40154015 Wilson–Harrington||4||November 19, 1949||Deep Space 1
|Abandoned target, also a comet
|Nereus, 46604660 Nereus||~1||February 28, 1982||NEAR
|Otawara, 49794979 Otawara||5.5||August 2, 1949||Rosetta||2007||Abandoned target|
|(10302) 1989 ML||June 29, 1989||Hayabusa||2002||Abandoned target|
|(163249) 2002 GT||April 3, 2002||Deep Impact||2020||Communications with spacecraft lost|
|(185851) 2000 DP107||~0.8||February 29, 2000||PROCYON||2016||Abandoned target, ion engine failure |
List of comets visited by spacecraft
|Halley||15×9||Known since antiquity||Vega 1||1986||8889||1620||Flyby|
|Borrelly||8×4×4||1904||Deep Space 1||2001||2171||814||Flyby|
|Wild 2||5.5×4.0×3.3||1978||Stardust||2004||240||113||Flyby; returned samples to Earth|
|Tempel 1||7.6×4.9||1867||Deep Impact||2005||0||0||Flyby; blasted a crater using an impactor|
(was Deep Impact)
|2010||700||1000||Flyby; smallest comet visited|
|Tempel 1||7.6×4.9||1867||Stardust||2011||181||57.9||Flyby; imaged the crater created by Deep Impact|
|Currently in orbit|
|Philae (Rosetta's lander)||2014||0||0||Landed|
Spacecraft visited by comets
Comet C/2013 A1 passed close by Mars in October 2014, closer than the Moon is to Earth.  As of early 2014 it was calculated to pass as close as 0.00087 AU (130,000 km; 81,000 mi). This was so close that the event was deemed dangerous to spacecraft in orbit around Mars. Spacecraft that were active at that time included 2001 Mars Odyssey, Mars Express, MAVEN, Mars Orbiter Mission, and Mars Reconnaissance Orbiter in Mars orbit – and two on the surface – Mars Exploration Rover Opportunity and the Mars Science Laboratory Curiosity.
- Chang'E 2 images of Toutatis – December 13, 2012 – The Planetary Society
- Asteroid Impact & Deflection Assessment (AIDA) study.
- Miriam Kramer (26 March 2013). "Asteroid Deflection Mission AIDA Set To Crash Two Spacecraft Into Space Rock In 2022". Huffington Post. Retrieved 19 September 2014.
- "JPL Close-Approach Data: C/2013 A1 (Siding Spring)". 2014-02-09 last obs (arc=493 days w/619 obs). Retrieved 2013-02-19. Check date values in:
- Grossman, Lisa (6 December 2013). "Fiercest meteor shower on record to hit Mars via comet". New Scientist. Archived from the original on 2013-12-12.