| 词条 | 2035 Stearns |
| 释义 |
| minorplanet = yes | name = 2035 Stearns | background = #FA8072 | image = | image_size = | caption = | discovery_ref = [1] | discoverer = J. B. Gibson | discovery_site = El Leoncito Complex | discovered = 21 September 1973 | mpc_name = (2035) Stearns | alt_names = 1973 SC{{·}}1973 UG | pronounced = | named_after = Carl Leo Stearns [1] {{small|(American astronomer)}} | mp_category = Mars-crosser Hungaria [1][5] | orbit_ref = | epoch = 23 March 2018 (JD 2458200.5) | uncertainty = 0 | observation_arc = 44.35 yr (16,199 d) | aphelion = 2.1317 AU | perihelion = 1.6366 AU | semimajor = 1.8841 AU | eccentricity = 0.1314 | period = 2.59 yr (945 d) | mean_anomaly = 134.07° | mean_motion = {{Deg2DMS|0.3811|sup=ms}} / day | inclination = 27.751° | asc_node = 77.035° | arg_peri = 200.71° | moid = 0.6305 AU (245 LD) | mean_diameter = {{val|4.82|0.52|ul=km}}[7] {{val|5.28|u=km}} {{small|(derived)}}[5] {{val|6.00|1.20|u=km}}[9] | rotation = {{val|51.89|0.20|ul=h}}[10] {{val|85|0.1|u=h}}[11] {{val|93|1|u=h}}[12]{{efn|name=lightcurve-plot-Stephens}} | albedo = {{val|0.40}} {{small|(assumed)}}[5] {{val|0.443|0.177}}[9] {{val|0.65|0.30}}[7] | spectral_type = Tholen {{=}} E SMASS {{=}} Xe [5][19] B–V {{=}} 0.737 U–B {{=}} 0.280 V–R {{=}} {{val|0.440}}[11] | abs_magnitude = 12.61[7][9] 13.0[5][27] }}2035 Stearns, provisional designation {{mp|1973 SC}}, is a bright Hungaria asteroid and sizable Mars-crosser inside the inner regions of the asteroid belt, approximately {{convert|6|km|mi|abbr=off|sigfig=2|sp=us}} in diameter. It was discovered on 21 September 1973, by American astronomer James Gibson at the Leoncito Astronomical Complex in Argentina.[1] The transitional E-type asteroid has a long rotation period of 93 hours.[5] It was named after American astronomer Carl Leo Stearns.[1] Orbit and classificationStearns is a dynamical Hungaria asteroid, a large group that forms the innermost dense concentration of asteroids in the Solar System.[1][5] It is also a Mars-crossing asteroid, a member of the dynamically unstable group, located between the main belt and near-Earth populations, and crossing the orbit of Mars at 1.666 AU.The asteroid orbits the Sun in the inner main-belt at a distance of 1.64–2.13 AU once every 2 years and 7 months (945 days; semi-major axis of 1.88 AU). Its orbit has an eccentricity of 0.13 and an inclination of 28° with respect to the ecliptic. The body's observation arc begins with a precovery taken at Palomar Observatory in January 1954, nearly 20 years prior to its official discovery observation at Leoncito.[1] Physical characteristicsIn the Tholen classification, Stearns is a bright E-type asteroid. while in the SMASS classification and Bus-DeMeo taxonomy, it is an Xe-subtype that transitions from the X-type to the E-type.[19] Rotation periodSeveral rotational lightcurve of Stearns have been obtained from photometric observations since 1988.[10][11][12] Analysis of the best-rated lightcurve by Robert Stephens at the Center for Solar System Studies {{Obscode|U81}} gave a rotation period of 93 hours with a brightness amplitude of 0.20 magnitude ({{small|U=2+}}). This makes the asteroid as close slow rotator.[5]{{efn|name=lightcurve-plot-Stephens}} Diameter and albedoAccording to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Stearns measures between 4.82 and 6.00 kilometers in diameter and its surface has an albedo between 0.443 and 0.65.[7][9] The Collaborative Asteroid Lightcurve Link assumes an standard albedo for members of the Hungaria family of 0.40, and derives a diameter of 5.28 kilometers based on an absolute magnitude of 13.0.[5] NamingThis minor planet was named after Carl Leo Stearns (1892–1972), American astronomer at Wesleyan University and Van Vleck Observatory who measured a large number of stellar parallaxes.[1] The official naming citation was published by the Minor Planet Center before November 1977 ({{small|M.P.C. 4548}}).[46] The lunar crater Stearns was also named in his honor. Notes{{notelist|refs={{efn|name=lightcurve-plot-Stephens|1=Lightcurve plot of (2035) Stearns with a rotation period {{val|93|1}} hours with a brightness amplitude of {{val|0.20}} mag. Taken by Robert Stephens at the Center for Solar System Studies (CS3) in 2014. Quality code is 2+. Summary figures at the LCDB.}}}} References1. ^1 2 3 4 5 6 7 8 {{cite web |title = 2035 Stearns (1973 SC) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2035 |accessdate = 25 May 2018}} [1][2][3][4][5][6][7][8][9][10]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 = 25 May 2018}} 3. ^1 2 {{cite web |title = Asteroid 2035 Stearns |work = Small Bodies Data Ferret |url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2035+Stearns |accessdate = 25 May 2018}} 4. ^1 2 3 4 5 6 7 8 9 {{cite web |title = LCDB Data for (2035) Stearns |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=2035%7CStearns |accessdate = 25 May 2018}} 5. ^1 2 3 4 {{Cite journal |first1 = V. |last1 = Alí-Lagoa |first2 = M. |last2 = Delbo' |date = July 2017 |title = Sizes and albedos of Mars-crossing asteroids from WISE/NEOWISE data |url = https://arxiv.org/pdf/1705.10263.pdf |journal = Astronomy and Astrophysics |volume = 603 |page = 8 |bibcode = 2017A&A...603A..55A |doi = 10.1051/0004-6361/201629917 |arxiv = 1705.10263 |access-date= 25 May 2018}} 6. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Masiero |first4 = J. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = T. |last6 = Grav |first7 = E. |last7 = Kramer |first8 = S. |last8 = Sonnett |first9 = R. |last9 = Stevenson |first10 = E. L. |last10 = Wright |date = December 2015 |title = NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos |url = https://arxiv.org/pdf/1509.02522.pdf |journal = The Astrophysical Journal |volume = 814 |issue = 2 |page = 13 |bibcode = 2015ApJ...814..117N |doi = 10.1088/0004-637X/814/2/117 |arxiv = 1509.02522 |access-date= 25 May 2018}} 7. ^1 2 {{Cite journal |author = Warner, Brian D. |date = July 2011 |title = Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2010 December- 2011 March |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011MPBu...38..142W |journal = The Minor Planet Bulletin |volume = 38 |issue = 3 |pages = 142–149 |issn = 1052-8091 |bibcode = 2011MPBu...38..142W |access-date= 25 May 2018}} 8. ^1 2 {{Cite journal |author = Stephens, Robert D. |date = October 2014 |title = Asteroids Observed from CS3: 2014 April-June |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014MPBu...41..226S |journal = The Minor Planet Bulletin |volume = 41 |issue = 4 |pages = 226–230 |issn = 1052-8091 |bibcode = 2014MPBu...41..226S |access-date= 25 May 2018}} 9. ^1 2 3 {{Cite journal |first1 = V. G. |last1 = Shevchenko |first2 = Yu. N. |last2 = Krugly |first3 = V. G. |last3 = Chiorny |first4 = I. N. |last4 = Belskaya |first5 = N. M. |last5 = Gaftonyuk |date = August 2003 |title = Rotation and photometric properties of E-type asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2003P&SS...51..525S |journal = Planetary and Space Science |volume = 51 |issue = 9-10 |pages = 525–532 |bibcode = 2003P&SS...51..525S |doi = 10.1016/S0032-0633(03)00076-X |access-date= 25 May 2018}} 10. ^1 {{Cite journal |first1 = W. Z. |last1 = Wisniewski |first2 = T. M. |last2 = Michalowski |first3 = A. W. |last3 = Harris |first4 = R. S. |last4 = McMillan |date = March 1995 |title = Photoelectric Observations of 125 Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1995LPI....26.1511W |journal = Abstracts of the Lunar and Planetary Science Conference |bibcode = 1995LPI....26.1511W |access-date= 25 May 2018}} }} External links
8 : Hungaria asteroids|Mars-crossing asteroids|Discoveries by James B. Gibson|Minor planets named for people|Named minor planets|E-type asteroids (Tholen)|Xe-type asteroids (SMASS)|Astronomical objects discovered in 1973 |
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