“4647 Syuji”的意思、由来-开放百科全书

Orbit and classification

Syuji

[5]

The body's observation arc begins at Heidelberg on 17 October 1931, or eight nights after its official discovery observation.^[1]

Physical characteristics

Syuji has an absolute magnitude of 12.8. Based on the body's albedo (see below) and its location in the asteroid belt, it is likely a carbonaceous asteroid. As of 2018, no rotational lightcurve of Syuji has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Syuji measures 13.864 kilometers in diameter and its surface has an albedo of 0.063.^[7]

Naming

This minor planet was named after Japanese astronomer Shuji Hayakawa (born 1958; first name also spelled "Syuji" or "Shūji"), an observer of comets and discoverer of minor planets at the Okutama Observatory {{Obscode|877}} in Okutama, west of Tokyo.^[1] The official naming was proposed by Takao Kobayashi and the citation was published by the Minor Planet Center on 25 May 1994 ({{small|M.P.C. 23540}}).^[18]

References

1. ^¹²³⁴⁵⁶{{cite web |title = 4647 Syuji (1931 TU1) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=4647 |accessdate = 17 May 2018}}
2. ^¹{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 17 May 2018}}
3. ^¹²{{cite web |title = Asteroid 4647 Syuji |work = Small Bodies Data Ferret |url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=4647+Syuji |accessdate = 17 May 2018}}
4. ^¹²³{{cite journal |display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = A. K. |last2 = Mainzer |first3 = T. |last3 = Grav |first4 = J. M. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = J. |last6 = Dailey |first7 = P. R. M. |last7 = Eisenhardt |first8 = R. S. |last8 = McMillan |first9 = T. B. |last9 = Spahr |first10 = M. F. |last10 = Skrutskie |first11 = D. |last11 = Tholen |first12 = R. G. |last12 = Walker |first13 = E. L. |last13 = Wright |first14 = E. |last14 = DeBaun |first15 = D. |last15 = Elsbury |first16 = T., IV |last16 = Gautier |first17 = S. |last17 = Gomillion |first18 = A. |last18 = Wilkins |date = November 2011 |title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 20 |bibcode = 2011ApJ...741...68M |doi = 10.1088/0004-637X/741/2/68 |arxiv = 1109.4096 |access-date= 17 May 2018}}

^[1]^[2]^[3]^[4]

}}

External links

[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|4647}}
{{JPL small body}}

{{Use dmy dates|date=May 2018}}{{Minor planets navigator |4646 Kwee |number=4647 |4648 Tirion}}{{Small Solar System bodies}}{{DEFAULTSORT:Syuji}}

5 : Background asteroids|Discoveries by Karl Wilhelm Reinmuth|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1931

词条	4647 Syuji
释义	Orbit and classification Physical characteristics Diameter and albedo Naming References External links {{Infobox planet \| minorplanet = yes \| name = 4647 Syuji \| background = #D6D6D6 \| image = \| image_size = \| caption = \| discovery_ref = ^[1] \| discoverer = K. Reinmuth \| discovery_site = Heidelberg Obs. \| discovered = 9 October 1931 \| mpc_name = (4647) Syuji \| alt_names = {{mp\|1931 TU\|1}}{{·}}1970 PD {{mp\|1979 FN\|3}}{{·}}1979 GA {{mp\|1980 RF\|4}} \| pronounced = \| named_after = Shuji Hayakawa ^[1] {{small\|(Japanese astronomer)}} \| mp_category = main-belt ^[1]{{·}}{{small\|(outer)}} background ^[5] \| orbit_ref = \| epoch = 23 March 2018 (JD 2458200.5) \| uncertainty = 0 \| observation_arc = 86.39 yr (31,553 d) \| aphelion = 3.6451 AU \| perihelion = 2.1369 AU \| semimajor = 2.8910 AU \| eccentricity = 0.2608 \| period = 4.92 yr (1,795 d) \| mean_anomaly = 240.47° \| mean_motion = {{Deg2DMS\|0.2005\|sup=ms}} / day \| inclination = 6.9377° \| asc_node = 180.58° \| arg_peri = 128.29° \| mean_diameter = {{val\|13.864\|0.057\|ul=km}}^[7] \| rotation = \| albedo = {{val\|0.063\|0.004}}^[7] \| spectral_type = \| abs_magnitude = 12.8 }}4647 Syuji, provisional designation {{mp\|1931 TU\|1}}, is a dark background asteroid from the outer regions of the asteroid belt, approximately {{convert\|14\|km\|mi\|abbr=off\|sigfig=2\|sp=us}} in diameter. It was discovered on 9 October 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The likely carbonaceous asteroid was named for Japanese astronomer Shuji Hayakawa.^[1] Orbit and classification Syuji is a non-family asteroid from the main belt's background population.^[5] It orbits the Sun in the outer main-belt at a distance of 2.1–3.6 AU once every 4 years and 11 months (1,795 days; semi-major axis of 2.89 AU). Its orbit has an eccentricity of 0.26 and an inclination of 7° with respect to the ecliptic. The body's observation arc begins at Heidelberg on 17 October 1931, or eight nights after its official discovery observation.^[1] Physical characteristics Syuji has an absolute magnitude of 12.8. Based on the body's albedo (see below) and its location in the asteroid belt, it is likely a carbonaceous asteroid. As of 2018, no rotational lightcurve of Syuji has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Syuji measures 13.864 kilometers in diameter and its surface has an albedo of 0.063.^[7] Naming This minor planet was named after Japanese astronomer Shuji Hayakawa (born 1958; first name also spelled "Syuji" or "Shūji"), an observer of comets and discoverer of minor planets at the Okutama Observatory {{Obscode\|877}} in Okutama, west of Tokyo.^[1] The official naming was proposed by Takao Kobayashi and the citation was published by the Minor Planet Center on 25 May 1994 ({{small\|M.P.C. 23540}}).^[18] References 1. ^¹²³⁴⁵⁶{{cite web \|title = 4647 Syuji (1931 TU1) \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=4647 \|accessdate = 17 May 2018}} 2. ^¹{{cite web \|title = MPC/MPO/MPS Archive \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html \|accessdate = 17 May 2018}} 3. ^¹²{{cite web \|title = Asteroid 4647 Syuji \|work = Small Bodies Data Ferret \|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=4647+Syuji \|accessdate = 17 May 2018}} 4. ^¹²³{{cite journal \|display-authors = 6 \|first1 = Joseph R. \|last1 = Masiero \|first2 = A. K. \|last2 = Mainzer \|first3 = T. \|last3 = Grav \|first4 = J. M. \|last4 = Bauer \|first5 = R. M. \|last5 = Cutri \|first6 = J. \|last6 = Dailey \|first7 = P. R. M. \|last7 = Eisenhardt \|first8 = R. S. \|last8 = McMillan \|first9 = T. B. \|last9 = Spahr \|first10 = M. F. \|last10 = Skrutskie \|first11 = D. \|last11 = Tholen \|first12 = R. G. \|last12 = Walker \|first13 = E. L. \|last13 = Wright \|first14 = E. \|last14 = DeBaun \|first15 = D. \|last15 = Elsbury \|first16 = T., IV \|last16 = Gautier \|first17 = S. \|last17 = Gomillion \|first18 = A. \|last18 = Wilkins \|date = November 2011 \|title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M \|journal = The Astrophysical Journal \|volume = 741 \|issue = 2 \|page = 20 \|bibcode = 2011ApJ...741...68M \|doi = 10.1088/0004-637X/741/2/68 \|arxiv = 1109.4096 \|access-date= 17 May 2018}} ^[1]^[2]^[3]^[4] }} External links [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\|4647}} {{JPL small body}} {{Use dmy dates\|date=May 2018}}{{Minor planets navigator \|4646 Kwee \|number=4647 \|4648 Tirion}}{{Small Solar System bodies}}{{DEFAULTSORT:Syuji}} 5 : Background asteroids\|Discoveries by Karl Wilhelm Reinmuth\|Minor planets named for people\|Named minor planets\|Astronomical objects discovered in 1931
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