| 词条 | 3794 Sthenelos |
| 释义 |
| minorplanet = yes | name = 3794 Sthenelos | background = #C2FFFF | image = | image_size = | caption = | discovery_ref = [1] | discoverer = C. Shoemaker | discovery_site = Palomar Obs. | discovered = 12 October 1985 | mpc_name = (3794) Sthenelos | alt_names = {{mp|1985 TF|3}}{{·}}1949 SA {{mp|1973 SU|2}} | pronounced = {{IPAc-en|ˈ|θ|ɛ|n|ᵻ|l|ə|s}}{{·}}{{Respell|THEN|ə|ləs}} | named_after = Sthenelus [1] {{small|(Greek mythology)}} | mp_category = Jupiter trojan [1] {{nowrap|Greek [5]{{·}}background [6]}} | orbit_ref = | epoch = 23 March 2018 (JD 2458200.5) | uncertainty = 0 | observation_arc = 68.67 yr (25,081 d) | aphelion = 5.9670 AU | perihelion = 4.4441 AU | semimajor = 5.2056 AU | eccentricity = 0.1463 | period = 11.88 yr (4,338 d) | mean_anomaly = 273.76° | mean_motion = {{Deg2DMS|0.0830|sup=ms}} / day | inclination = 6.0611° | asc_node = 343.20° | arg_peri = 35.374° | jupiter_moid = 0.2224 AU | tisserand = 2.9670 | mean_diameter = {{val|34.53|0.36|ul=km}}[8] {{val|46.30|u=km}} {{small|(calculated)}}[9] | rotation = {{val|12.877|0.016|ul=h}}[10] | albedo = {{val|0.057}} {{small|(assumed)}}[9] {{val|0.112|0.020}}[8] | spectral_type = C {{small|(assumed)}}[9] V–I {{=}} {{val|1.070|0.048}}[9] | abs_magnitude = 10.3[8] 10.4[1][9] }}3794 Sthenelos ({{IPAc-en|ˈ|θ|ɛ|n|ᵻ|l|ə|s}} {{Respell|THEN|ə|ləs}}), provisional designation {{mp|1985 TF|3}}, is a mid-sized Jupiter trojan from the Greek camp, approximately {{convert|40|km|mi|abbr=off|sigfig=2|sp=us}} in diameter. It was discovered on 12 October 1985, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California.[1] The presumed C-type asteroid has a rotation period of 12.9 hours.[9] It was named after the Greek warrior Sthenelus from Greek mythology.[1] Orbit and classificationSthenelos is a dark Jovian asteroid in a 1:1 orbital resonance with Jupiter. It is located in the leading Greek camp at the Gas Giant's {{L4}} Lagrangian point, 60° ahead on its orbit {{cross reference|(see Trojans in astronomy)}}. It is also a non-family asteroid of the Jovian background population.[6] It orbits the Sun at a distance of 4.4–6.0 AU once every 11 years and 11 months (4,338 days; semi-major axis of 5.21 AU). Its orbit has an eccentricity of 0.15 and an inclination of 6° with respect to the ecliptic.The body's observation arc begins with its first observation as {{mp|1949 SA}} at Heidelberg Observatory in September 1949, or 36 years prior to its official discovery observation at Palomar.[1] Physical characteristicsSthenelos is an assumed, carbonaceous C-type asteroid, while most larger Jupiter trojans are D-type asteroids. It has a high V–I color index of 1.07.[9]Rotation periodIn August 1995, a rotational lightcurve of Sthenelos was obtained from photometric observations by Italian astronomer Stefano Mottola using the Bochum 0.61-metre Telescope at ESO's La Silla Observatory in Chile. Lightcurve analysis gave a well-defined rotation period of {{val|12.877|0.016}} hours with a brightness amplitude of 0.27 magnitude ({{small|U=3}}).[9][10] Diameter and albedoAccording to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Sthenelos measures 34.53 kilometers in diameter and its surface has an albedo of 0.112,[8] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 46.30 kilometers based on an absolute magnitude of 10.4.[9] NamingThis minor planet was named from Greek mythology after Sthenelus, a Greek warrior and companion of Diomedes during the Trojan War. He stole Aeneas' chariot horses and brought it back to the Greek camp. The official naming citation was published by the Minor Planet Center on 27 August 1988 ({{small|M.P.C. 13482}}).[30] References1. ^1 2 3 4 5 6 7 {{cite web |title = 3794 Sthenelos (1985 TF3) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=3794 |accessdate = 21 June 2018}} [1][2][3][4][5][6][7]2. ^1 {{cite web |title = List of Jupiter Trojans |work = Minor Planet Center |first3 = V. |last3 = Carruba |date = 1 June 2018 |url = https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html |accessdate = 21 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 = 21 June 2018}} 4. ^1 2 3 4 {{cite journal |first1 = T. |last1 = Grav |first2 = A. K. |last2 = Mainzer |first3 = J. M. |last3 = Bauer |first4 = J. R. |last4 = Masiero |first5 = C. R. |last5 = Nugent |date = November 2012 |title = WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy |journal = The Astrophysical Journal |volume = 759 |issue = 1 |page = 10 |bibcode = 2012ApJ...759...49G |doi = 10.1088/0004-637X/759/1/49 |arxiv = 1209.1549 }} (online catalog) 5. ^1 2 {{cite web |title = Asteroid (3794) Sthenelos – Proper Elements |publisher = AstDyS-2, Asteroids – Dynamic Site |url = http://hamilton.dm.unipi.it/astdys/index.php?n=3794&pc=1.1.6 |access-date= 21 June 2018}} 6. ^1 2 3 4 5 6 7 8 9 {{cite web |title = LCDB Data for (3794) Sthenelos |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=3794%7CSthenelos |accessdate = 21 June 2018}} 7. ^1 2 {{cite journal |display-authors = 6 |first1 = Stefano |last1 = Mottola |first2 = Mario |last2 = Di Martino |first3 = Anders |last3 = Erikson |first4 = Maria |last4 = Gonano-Beurer |first5 = Albino |last5 = Carbognani |first6 = Uri |last6 = Carsenty |first7 = Gerhard |last7 = Hahn |first8 = Hans-Josef |last8 = Schober |first9 = Felix |last9 = Lahulla |first10 = Marco |last10 = Delbò |first11 = Claes-Ingvar |last11 = Lagerkvist |date = May 2011 |title = Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects |journal = The Astronomical Journal |volume = 141 |issue = 5 |page = 32 |bibcode = 2011AJ....141..170M |doi = 10.1088/0004-6256/141/5/170 }} }} External links
5 : Jupiter trojans (Greek camp)|Discoveries by Carolyn S. Shoemaker|Minor planets named from Greek mythology|Named minor planets|Astronomical objects discovered in 1985 |
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