“2440 Educatio”的意思、由来-开放百科全书

The asteroid was first observed as {{mp|1928 QH}} at the Simeiz Observatory in August 1928. The body's observation arc begins with its observation as {{mp|1954 JK}} at the Goethe Link Observatory in May 1954, more than 24 years prior to its official discovery observation at Palomar.^[1]

Naming

This minor planet was named "Educatio", the Latin word for Education, one of the most important human endeavors, which is foremost to the industrialization of space.^[1] The official naming citation was published by the Minor Planet Center on 28 January 1983 ({{small|M.P.C. 7618}}).^[22]

Physical characteristics

In the SMASS classification, Educatio is a stony S-type asteroid,^[6] which agrees with the overall spectral type for members of the Flora family.^[18]{{rp|23}}

Rotation period

A rotational lightcurve of Educatio, obtained from photometric observations, gave a rotation period of 1561 hours with a high brightness amplitude of 0.80 magnitude ({{small|U=2}}), indicative of a non-spherical shape.^[6] It belongs to the small group of slow rotators with a period above 1000 hours.

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Educatio measures 6.59 kilometers in diameter and its surface has an albedo of 0.247,^[8] while the Collaborative Asteroid Lightcurve Link an albedo of 0.24 – derived from 8 Flora, the parent body of the Flora family – and calculates a diameter of 6.51 kilometers based on an absolute magnitude of 13.1.^[6]

References

1. ^¹²{{cite book |title = Dictionary of Minor Planet Names – (2440) Educatio |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 199 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_2441 |chapter = (2440) Educatio }}
2. ^¹²³⁴⁵⁶{{cite web |title = 2440 Educatio (1978 VQ4) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2440 |accessdate = 26 June 2018}}
3. ^¹{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 26 June 2018}}
4. ^¹²³{{cite journal |display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = T. |last2 = Grav |first3 = A. K. |last3 = Mainzer |first4 = C. R. |last4 = Nugent |first5 = J. M. |last5 = Bauer |first6 = R. |last6 = Stevenson |first7 = S. |last7 = Sonnett |date = August 2014 |title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos |journal = The Astrophysical Journal |volume = 791 |issue = 2 |page = 11 |bibcode = 2014ApJ...791..121M |doi = 10.1088/0004-637X/791/2/121 |arxiv = 1406.6645 }}
5. ^¹²³⁴⁵⁶{{cite web |title = LCDB Data for (2440) Educatio |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=2440%7CEducatio |accessdate = 26 June 2018}}
6. ^¹²³{{cite web |title = Asteroid 2440 Educatio |work = Small Bodies Data Ferret |url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2440+Educatio |accessdate = 26 June 2018}}
7. ^¹²{{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }}

词条	2440 Educatio
释义	Orbit and classification Naming Physical characteristics Rotation period Diameter and albedo References External links {{Infobox planet \| minorplanet = yes \| name = 2440 Educatio \| background = #D6D6D6 \| image = \| image_size = \| caption = \| discovery_ref = ^[1] \| discoverer = E. F. Helin S. J. Bus \| discovery_site = Palomar Obs. \| discovered = 7 November 1978 \| mpc_name = (2440) Educatio \| alt_names = {{mp\|1978 VQ\|4}}{{·}}1928 QH 1954 JK{{·}}{{mp\|1968 US\|1}} 1977 JG \| pronounced = \| named_after = Education ^[2] \| mp_category = main-belt ^[1]{{·}}{{small\|(inner)}} Flora ^[5]^[6] \| orbit_ref = \| epoch = 23 March 2018 (JD 2458200.5) \| uncertainty = 0 \| observation_arc = 89.43 yr (32,665 d) \| aphelion = 2.5763 AU \| perihelion = 1.8554 AU \| semimajor = 2.2158 AU \| eccentricity = 0.1627 \| period = 3.30 yr (1,205 d) \| mean_anomaly = 77.238° \| mean_motion = {{Deg2DMS\|0.2988\|sup=ms}} / day \| inclination = 4.1060° \| asc_node = 227.20° \| arg_peri = 77.865° \| mean_diameter = {{val\|6.586\|0.128\|ul=km}}^[8] \| rotation = {{val\|1561\|ul=h}}^[6] \| albedo = {{val\|0.247\|0.039}}^[8] \| spectral_type = S {{small\|(SMASS-II)}}^[5] \| abs_magnitude = 13.1^[1] }}2440 Educatio, provisional designation {{mp\|1978 VQ\|4}}, is a Florian asteroid from the inner regions of the asteroid belt, approximately {{convert\|6.6\|km\|mi\|abbr=off\|sigfig=2\|sp=us}} in diameter. The possibly elongated S-type asteroid has an exceptionally long rotation period of 1561 hours and is one of the slowest rotators known to exist.^[6] It was discovered on 7 November 1978, by American astronomers Eleanor Helin and Schelte Bus at the Palomar Observatory in California,^[1] and later named "Educatio", the Latin word for Education.^[2] Orbit and classification Educatio member of the Flora family ({{small\|402}}),^[5] a giant asteroid family and the largest family of stony asteroids in the main-belt.^[18] It orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,205 days; semi-major axis of 2.22 AU). Its orbit has an eccentricity of 0.16 and an inclination of 4° with respect to the ecliptic. The asteroid was first observed as {{mp\|1928 QH}} at the Simeiz Observatory in August 1928. The body's observation arc begins with its observation as {{mp\|1954 JK}} at the Goethe Link Observatory in May 1954, more than 24 years prior to its official discovery observation at Palomar.^[1] Naming This minor planet was named "Educatio", the Latin word for Education, one of the most important human endeavors, which is foremost to the industrialization of space.^[1] The official naming citation was published by the Minor Planet Center on 28 January 1983 ({{small\|M.P.C. 7618}}).^[22] Physical characteristics In the SMASS classification, Educatio is a stony S-type asteroid,^[6] which agrees with the overall spectral type for members of the Flora family.^[18]{{rp\|23}} Rotation period A rotational lightcurve of Educatio, obtained from photometric observations, gave a rotation period of 1561 hours with a high brightness amplitude of 0.80 magnitude ({{small\|U=2}}), indicative of a non-spherical shape.^[6] It belongs to the small group of slow rotators with a period above 1000 hours. Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Educatio measures 6.59 kilometers in diameter and its surface has an albedo of 0.247,^[8] while the Collaborative Asteroid Lightcurve Link an albedo of 0.24 – derived from 8 Flora, the parent body of the Flora family – and calculates a diameter of 6.51 kilometers based on an absolute magnitude of 13.1.^[6] References 1. ^¹²{{cite book \|title = Dictionary of Minor Planet Names – (2440) Educatio \|last = Schmadel \| first = Lutz D. \|publisher = Springer Berlin Heidelberg \|page = 199 \|date = 2007 \|isbn = 978-3-540-00238-3 \|doi = 10.1007/978-3-540-29925-7_2441 \|chapter = (2440) Educatio }} 2. ^¹²³⁴⁵⁶{{cite web \|title = 2440 Educatio (1978 VQ4) \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2440 \|accessdate = 26 June 2018}} 3. ^¹{{cite web \|title = MPC/MPO/MPS Archive \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html \|accessdate = 26 June 2018}} 4. ^¹²³{{cite journal \|display-authors = 6 \|first1 = Joseph R. \|last1 = Masiero \|first2 = T. \|last2 = Grav \|first3 = A. K. \|last3 = Mainzer \|first4 = C. R. \|last4 = Nugent \|first5 = J. M. \|last5 = Bauer \|first6 = R. \|last6 = Stevenson \|first7 = S. \|last7 = Sonnett \|date = August 2014 \|title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos \|journal = The Astrophysical Journal \|volume = 791 \|issue = 2 \|page = 11 \|bibcode = 2014ApJ...791..121M \|doi = 10.1088/0004-637X/791/2/121 \|arxiv = 1406.6645 }} 5. ^¹²³⁴⁵⁶{{cite web \|title = LCDB Data for (2440) Educatio \|publisher = Asteroid Lightcurve Database (LCDB) \|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=2440%7CEducatio \|accessdate = 26 June 2018}} 6. ^¹²³{{cite web \|title = Asteroid 2440 Educatio \|work = Small Bodies Data Ferret \|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2440+Educatio \|accessdate = 26 June 2018}} 7. ^¹²{{Cite book \|first1 = D. \|last1 = Nesvorný \|first2 = M. \|last2 = Broz \|first3 = V. \|last3 = Carruba \|date = December 2014 \|title = Identification and Dynamical Properties of Asteroid Families \|journal = Asteroids IV \|pages = 297–321 \|bibcode = 2015aste.book..297N \|doi = 10.2458/azu_uapress_9780816532131-ch016 \|arxiv = 1502.01628 \|isbn = 9780816532131 }} ^[1]^[2]^[3]^[4]^[5]^[6]^[7] }} External links Lightcurve plot (2440) Educatio, Sugerloaf Mt. / Pravec Asteroid Lightcurve Database (LCDB), query form (info) [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center {{AstDys\|2440}} {{JPL small body}} {{Use dmy dates\|date=June 2018}}{{Minor planets navigator \|2439 Ulugbek \|number=2440 \|2441 Hibbs}}{{Small Solar System bodies}}{{DEFAULTSORT:Educatio}} 6 : Flora asteroids\|Discoveries by Eleanor F. Helin\|Discoveries by Schelte J. Bus\|Named minor planets\|Slow rotating minor planets\|Astronomical objects discovered in 1978
随便看	EC 3.2.1.89 EC 3.2.1.91 EC 3.2.1.92 EC 3.2.1.93 EC 3.2.1.94 EC 3.2.1.95 EC 3.2.1.96 EC 3.2.1.97 EC 3.2.1.98 EC 3.2.1.99 EC 3.2.2.1 EC 3.2.2.10 EC 3.2.2.11 EC 3.2.2.12 EC 3.2.2.13 EC 3.2.2.14 EC 3.2.2.15 EC 3.2.2.16 EC 3.2.2.17 EC 3.2.2.18 EC 3.2.2.19 EC 3.2.2.2 EC 3.2.2.20 EC 3.2.2.21 EC 3.2.2.22

Orbit and classification

Naming

Physical characteristics

Rotation period

Diameter and albedo

References

External links