| 释义 |
- Orbit and classification
- Physical characteristics Rotation period Diameter and albedo
- Naming
- References
- External links
{{Infobox planet
| minorplanet = yes
| name = 3141 Buchar
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref = [1]
| discoverer = A. Mrkos
| discovery_site = Kleť Obs.
| discovered = 2 September 1984
| mpc_name = (3141) Buchar
| alt_names = 1984 RH{{·}}1952 PE
1952 RQ{{·}}1953 UF
{{mp|1953 VK|2}}{{·}}1977 NM
1977 OE{{·}}{{mp|1979 YW|9}}
A905 CE
| pronounced =
| named_after = Emil Buchar [1]
{{nowrap|{{small|(Czechoslovakian astronomer)}}}}
| mp_category = main-belt{{·}}{{small|(outer)}}
background [5]{{·}}Cybele
| orbit_ref =
| epoch = 23 March 2018 (JD 2458200.5)
| uncertainty = 0
| observation_arc = 113.21 yr (41,350 d)
| aphelion = 3.6579 AU
| perihelion = 3.1382 AU
| semimajor = 3.3980 AU
| eccentricity = 0.0765
| period = 6.26 yr (2,288 d)
| mean_anomaly = 10.002°
| mean_motion = {{Deg2DMS|0.1573|sup=ms}} / day
| inclination = 10.997°
| asc_node = 321.13°
| arg_peri = 152.62°
| mean_diameter = 35.91 km {{small|(derived)}}[4]
{{val|36.05|2.2|ul=km}}[8]
{{val|40.13|0.87|u=km}}[9]
| rotation = {{val|11.41|0.01|ul=h}}[10]
| albedo = {{val|0.0656}} {{small|(derived)}}[4]
{{val|0.069|0.003}}[9]
{{val|0.0858|0.012}}[8]
| spectral_type = D {{small|(S3OS2)}}[14]
C {{small|(assumed)}}[4]
| abs_magnitude = 10.50[8][9]
10.8
}}3141 Buchar, provisional designation {{mp|1984 RH}}, is a dark Cybele asteroid from the outermost region of the asteroid belt, approximately {{convert|36|km|mi|abbr=off|sigfig=2|sp=us}} in diameter. It was discovered on 2 September 1984, by Czech astronomer Antonín Mrkos at the Kleť Observatory.[1] The D-type asteroid has a rotation period of 11.4 hours.[4] It was named in memory of Czechoslovakian astronomer Emil Buchar.[1] Orbit and classification Buchar is located in the dynamical region of the Cybele asteroids. It is a non-family asteroid from the main belt's background population.[5] It orbits the Sun in the outermost asteroid belt at a distance of 3.1–3.7 AU once every 6 years and 3 months (2,288 days; semi-major axis of 3.4 AU). Its orbit has an eccentricity of 0.08 and an inclination of 11° with respect to the ecliptic. Physical characteristics Buchar has been characterized as dark D-type asteroid in both the Tholen-like and Bus–Binzel-like taxonomy of the Small Solar System Objects Spectroscopic Survey (S3OS2).[14] It is also an assumed C-type asteroid.[4] Rotation period In November 2004, a rotational lightcurve of Buchar was obtained from photometric observations by French amateur astronomer Laurent Bernasconi. Lightcurve analysis gave a rotation period of 11.41 hours with a brightness amplitude of 0.47 magnitude ({{small|U=2+}}).[10] Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS and the Japanese Akari satellite, Buchar measures between 36.05 and 40.13 kilometers in diameter and its surface has an albedo between 0.069 and 0.0858.[8][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0656 and a diameter of 35.91 kilometers based on an absolute magnitude of 10.8.[4] Naming This minor planet was named in memory of Czechoslovakian astronomer Emil Buchar (1901–1979), discoverer of asteroid 1055 Tynka and one of the pioneers of satellite geodesy. He was a professor of astronomy and geodesy at Czech Technical University in Prague.[1] The official naming citation was published by the Minor Planet Center on 29 November 1993 ({{small|M.P.C. 22828}}).[33] References 1. ^1 2 3 4 5 6 {{cite web |title = 3141 Buchar (1984 RH) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=3141 |accessdate = 12 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 = 12 May 2018}}
3. ^1 2 {{cite web |title = Asteroids and comets rotation curves – (3141) Buchar |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#003141 |accessdate = 12 May 2018}}
4. ^1 2 {{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 12 May 2018}}
5. ^1 2 {{Cite journal |first1 = D. |last1 = Lazzaro |first2 = C. A. |last2 = Angeli |first3 = J. M. |last3 = Carvano |first4 = T. |last4 = Mothé-Diniz |first5 = R. |last5 = Duffard |first6 = M. |last6 = Florczak |date = November 2004 |title = S3OS2: the visible spectroscopic survey of 820 asteroids |url = http://sirrah.troja.mff.cuni.cz/yarko-site/tmp/eos/NEW/spectral_type_figure/s3os2.pdf |journal = Icarus |volume = 172 |issue = 1 |pages = 179–220 |bibcode = 2004Icar..172..179L |doi = 10.1016/j.icarus.2004.06.006 |access-date= 12 May 2018}}
6. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (3141) Buchar |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=3141%7CBuchar |accessdate = 12 May 2018}}
7. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = Fumihiko |last1 = Usui |first2 = Daisuke |last2 = Kuroda |first3 = Thomas G. |last3 = Müller |first4 = Sunao |last4 = Hasegawa |first5 = Masateru |last5 = Ishiguro |first6 = Takafumi |last6 = Ootsubo |first7 = Daisuke |last7 = Ishihara |first8 = Hirokazu |last8 = Kataza |first9 = Satoshi |last9 = Takita |first10 = Shinki |last10 = Oyabu |first11 = Munetaka |last11 = Ueno |first12 = Hideo |last12 = Matsuhara |first13 = Takashi |last13 = Onaka |date = October 2011 |title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey |url = http://pasj.oxfordjournals.org/content/63/5/1117.full.pdf+html |journal = Publications of the Astronomical Society of Japan |volume = 63 |issue = 5 |pages = 1117–1138 |bibcode = 2011PASJ...63.1117U |doi = 10.1093/pasj/63.5.1117 |access-date= 12 May 2018}} Online catalog
8. ^1 2 3 4 {{cite journal |first1 = E. F. |last1 = Tedesco |first2 = P. V. |last2 = Noah |first3 = M. |last3 = Noah |first4 = S. D. |last4 = Price |date = October 2004 |title = IRAS Minor Planet Survey V6.0 |url = https://sbn.psi.edu/pds/asteroid/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab |journal = NASA Planetary Data System |bibcode = 2004PDSS...12.....T |access-date = 12 May 2018 |archive-url = https://web.archive.org/web/20160603231123/http://sbn.psi.edu/pds/asteroid/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab |archive-date = 3 June 2016 |dead-url = yes |df = dmy-all }}
[1][2][3][4][5][6][7][8]}} External links - Asteroid Lightcurve Database (LCDB), query form (info)
- [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- {{AstDys|3141}}
- {{JPL small body}}
{{Use dmy dates|date=May 2018}}{{Minor planets navigator |3140 Stellafane |number=3141 |3142 Kilopi}}{{Small Solar System bodies}}{{DEFAULTSORT:Buchar}} 6 : Cybele asteroids|Background asteroids|Discoveries by Antonín Mrkos|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1984 |