:2578 Saint-Exupéry

Saint-Exupéry is a member the Eos family ({{small|606}}), the largest asteroid family of the outer main belt consisting of nearly 10,000 known members.{{rp|23}} The asteroid orbits the Sun at a distance of 2.7–3.3 AU once every 5 years and 2 months (1,900 days). Its orbit has an eccentricity of 0.10 and an inclination of 11° with respect to the ecliptic.

The asteroid's was first identified as {{mp|1952 HG|2}} at McDonald Observatory in Texas. One month later, it was also observed at the Palomar Observatory in May 1952. Its observation arc begins by 23 years prior to its official discovery observation at Nauchnyj.

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Saint-Exupéry measures 17.0 kilometers in diameter and its surface has an albedo of 0.168. Based on its absolute magnitude of 11.5, its generic diameter is between 13 and 30 kilometers, assuming an albedo in the range of 0.05 to 0.25.

As of 2017, Saint-Exupéry{{'}}s effective composition, rotation period and shape remain unknown.

The minor planet was named in honour of French aviator and writer Antoine de Saint-Exupéry (1900–1944). The name also alludes to Saint-Exupéry's best-known character, The Little Prince, who lives on an asteroid.

In the book, the prince's asteroid also has a unique code: B612 (which does not match this minor planet's provisional designation). However, there is another asteroid called 46610 Bésixdouze, which is French for "B-six-twelve" (B612 in hexadecimal notation equals 46610).

The official naming citation was published by the Minor Planet Center on 11 July 1987 ({{small|M.P.C. 12012}}).

• 5540 Smirnova
• Petit-Prince (moon), asteroid moon of 45 Eugenia

{{reflist|30em|refs=

{{cite web

|type = 2017-01-02 last obs.

|title = JPL Small-Body Database Browser: 2578 Saint-Exupery (1975 VW3)

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|publisher = Jet Propulsion Laboratory

|access-date = 14 June 2017}}

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|work = Minor Planet Center

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|access-date = 6 December 2016}}

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|title = Asteroid 2578 Saint-Exupery – Nesvorny HCM Asteroid Families V3.0

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|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2578+Saint-Exupery#Asteroid%202578%20Saint-ExuperyEAR-A-VARGBDET-5-NESVORNYFAM-V3.0

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{{cite web

|title = LCDB Data for (2578) Saint-Exupéry

|publisher = Asteroid Lightcurve Database (LCDB)

|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2578%7CSaint-Exupéry

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}}

• [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
• [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
• [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
• [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
• {{AstDys|2578}}
• {{JPL small body}}

{{Minor planets navigator |2577 Litva |number=2578 |2579 Spartacus}}

{{Small Solar System bodies}}

{{Antoine de Saint-Exupéry}}

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002578

Category:Discoveries by Tamara Mikhaylovna Smirnova

Category:Named minor planets

Category:Antoine de Saint-Exupéry

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