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1981 Midas
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{{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | name = 1981 Midas | background = #FFC2E0 | image = Midas Arecibo radar 2018 Mar 23.gif | image_scale = | caption = Radar images of Midas by the [[Arecibo Observatory]] in March 2018 | discovery_ref = <ref name="jpldata" /> | discovered = 6 March 1973 | discoverer = [[C. Kowal]] | discovery_site = [[Palomar Observatory|Palomar Obs.]] | mpc_name = (1981) Midas | alt_names = 1973 EA | pronounced = {{IPAc-en|ˈ|m|ai|d|@|s}}<ref>{{Cite encyclopedia |url=http://www.lexico.com/definition/Midas |archive-url=https://web.archive.org/web/20200204154416/https://www.lexico.com/definition/midas |url-status=dead |archive-date=4 February 2020 |title=Midas |dictionary=[[Lexico]] UK English Dictionary |publisher=[[Oxford University Press]]}}</ref> | named_after = [[Midas|Midās]] {{small|(Greek mythology)}}<ref name="springer" /> | mp_category = {{Hlist | [[Apollo asteroid|Apollo]] | [[Near-Earth object|NEO]] | [[Potentially hazardous asteroid|PHA]]<ref name="jpldata"/><ref name="MPC-Midas" /> | [[Venus-crosser asteroid|Venus-crosser]] | [[Mars-crosser]] }} | orbit_ref = <ref name="jpldata" /> | epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) | uncertainty = 0 | observation_arc = 41.97 yr (15,330 days) | aphelion = 2.9307 [[Astronomical unit|AU]] | perihelion = 0.6212 AU | semimajor = 1.7759 AU | eccentricity = 0.6502 | period = 2.37 [[Julian year (astronomy)|yr]] (864 days) | mean_anomaly = 256.48[[Degree (angle)|°]] | mean_motion = {{Deg2DMS|0.4165|sup=ms}} / day | inclination = 39.833° | asc_node = 356.90° | arg_peri = 267.80° | moid = 0.0045 AU (1.8 [[Lunar distance (astronomy)|LD]]) | dimensions = {{Ubl | {{val|1.95|0.07|u=km}}<ref name="AKARI" /><ref name="lcdb" /> | 3.4 km {{small|(outdated)}}<ref name="jpldata" /> }} | rotation = {{val|5.22|u=h}}<ref name="Mottola-1995a" /><ref name="Torppa-2005" /> | albedo = {{Ubl | 0.2661 {{small|(derived)}}<ref name="lcdb" /> | {{val|0.293|0.025}}<ref name="AKARI" /> }} | spectral_type = {{Hlist | [[SMASS classification|SMASS]] {{=}} V<ref name="jpldata" /> | [[V-type asteroid|V]]<ref name="lcdb" /> }} | abs_magnitude = {{Ubl | 15.18<ref name="Mottola-1995a" /> | 15.2<ref name="jpldata" /> | 15.50<ref name="AKARI" /> | {{val|15.6|0.2}}<ref name="lcdb" /><ref name="Wisniewski-1997" /><ref name="Pravec-2012b" /> | {{val|15.96|0.23}}<ref name="Veres-2015" /> }} }} '''1981 Midas''', provisional designation {{mp|1973 EA}}, is a vestoid [[asteroid]], classified as a [[near-Earth object]] and [[potentially hazardous asteroid]], approximately 2 kilometers in diameter.<ref name="jpldata"/> It was discovered on 6 March 1973 by American astronomer [[Charles Kowal]] at [[Palomar Observatory]] in San Diego County, California.<ref name="MPC-Midas" /> It was named after King [[Midas]] from Greek mythology.<ref name="springer" />
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