| 词条 | 53311 Deucalion |
| 释义 |
| minorplanet = yes | name = 53311 Deucalion | background = #C2E0FF | image = | image_size = | caption = | discovery_ref = [1] | discoverer = DES | discovery_site = {{nowrap|Kitt Peak National Obs.}} | discovered = 18 April 1999 | mpc_name = (53311) Deucalion | alt_names = {{mp|1999 HU|11}} | pronounced = {{IPAc-en|dj|uː|ˈ|k|eɪ|l|i|ə|n}} {{Respell|dew|KAY|lee-ən}} | named_after = Deucalion [1] {{small|(Greek mythology)}} | mp_category = TNO {{·}}cubewano[4] cold [5] | adjectives = Deucalionean Deucalionian | orbit_ref = | epoch = 27 April 2019 (JD 2458600.5) | uncertainty = 4{{·}}3[1] | observation_arc = 15.04 yr (5,492 d) | aphelion = 47.371 AU | perihelion = 41.419 AU | semimajor = 44.395 AU | eccentricity = 0.0670 | period = 295.81 yr (108,044 d) | mean_anomaly = 307.41° | mean_motion = {{Deg2DMS|0.0033|sup=ms}} / day | inclination = 0.3720° | asc_node = 51.363° | arg_peri = 237.36° | mean_diameter = {{val|131|ul=km}} {{small|(est.)}}[5] {{val|212|u=km}} {{small|(est.)}}[9] | rotation = | albedo = {{val|0.09}} {{small|(assumed)}}[9] {{val|0.20}} {{small|(assumed)}}[5] | spectral_type = | abs_magnitude = 6.6[1] }}53311 Deucalion ({{IPAc-en|dj|uː|ˈ|k|eɪ|l|i|ə|n}} {{Respell|dew|KAY|lee-ən}}; from {{Lang-el|Δευκαλίων}}), provisional designation {{mp|1999 HU|11}}, is a trans-Neptunian object from the classical Kuiper belt, located in the outermost region of the Solar System, approximately {{convert|130-210|km|mi|abbr=off|sigfig=2|sp=us}}. The cubewano belongs to the cold population and was discovered on 18 April 1999, by the Deep Ecliptic Survey at the Kitt Peak National Observatory in Arizona, United States. It was named after Deucalion, from Greek mythology.[1][9][5] Orbit and classificationDeucalion orbits the Sun at a distance of 41.4–47.4 AU once every 295 years and 10 months (108,044 days; semi-major axis of 44.4 AU). Its orbit has an eccentricity of 0.07 and an inclination of 0° with respect to the ecliptic. The body's observation arc begins six days prior to its official discovery observation in April 1999.[1]It is a cubewano from the classical Kuiper belt,[9] located in between the resonant plutino and twotino populations and has a low-eccentricity orbit. With its very small inclination (0.3°), significantly less than 4–7°, the object belongs to the cold population rather than the "stirred" hot population. NamingThis minor planet was named from Greek mythology after Deucalion, son of Prometheus. He and his wife Pyrrha were the only ones that survived the great deluge ("the flood of Deucalion") brought upon all humans by Zeus. The official {{MoMP|53311|naming citation}} was published by the Minor Planet Center on 14 June 2003 ({{small|M.P.C. 49102}}).[20] Physical characteristicsJohnston's archive estimates a diameter of 212 kilometers based on an assumed albedo of 0.09, while American astronomer Michael Brown, calculates a diameter of 131 kilometers, using an estimated albedo of 0.20 and an absolute magnitude of 6.6.[9][5] On his website, Brown lists this object no longer as a dwarf planet candidate in his 5-class taxonomic system.[5] As of 2018, no spectral type and color indices, nor a rotational lightcurve have been obtained from spectroscopic and photometric observations. The body's color, rotation period, pole and shape remain unknown.[25] References1. ^1 2 3 4 5 6 {{cite web |title = 53311 Deucalion (1999 HU11) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=53311 |accessdate = 3 December 2018}} [1][2][3][4][5][6]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 = 3 December 2018}} 3. ^1 2 3 4 5 {{cite web |title = List of Known Trans-Neptunian Objects |work = Johnston's Archive |date = 7 October 2018 |last = Johnston |first= Wm. Robert |url = http://www.johnstonsarchive.net/astro/tnoslist.html |accessdate = 3 December 2018}} 4. ^1 2 3 4 5 6 {{cite web |title = How many dwarf planets are there in the outer solar system? |publisher = California Institute of Technology |last = Brown |first= Michael E. |url = http://web.gps.caltech.edu/~mbrown/dps.html |accessdate = 3 December 2018}} 5. ^1 {{cite web |author = Marc W. Buie |author-link= Marc W. Buie |date = 31 May 2003 |title = Orbit Fit and Astrometric record for 53311 |publisher = SwRI (Space Science Department) |url = http://www.boulder.swri.edu/~buie/kbo/astrom/53311.html |accessdate = 2008-09-28}} 6. ^1 {{cite web |title = LCDB Data for (53311) Deucalion |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=53311%7CDeucalion |accessdate = 3 December 2018}} }} External links
5 : Cold classical Kuiper belt objects|Discoveries by the Deep Ecliptic Survey|Minor planets named from Greek mythology|Named minor planets|Astronomical objects discovered in 1999 |
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