Editing 2001 Einstein (section)

{{Short description|Asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
 | minorplanet     = yes
 | name            = 2001 Einstein
 | background      = #D6D6D6
 | image           = 002001-asteroid shape model (2001) Einstein.png
 | image_scale      =
 | caption         = Shape model of ''Einstein'' from its [[lightcurve]]
 | discovery_ref   = <ref name="jpldata" />
 | discoverer      = [[Paul Wild (Swiss astronomer)|P. Wild]]
 | discovery_site  = [[Zimmerwald Observatory|Zimmerwald Obs.]]
 | discovered      = 5 March 1973
 | mpc_name        = (2001) Einstein
 | alt_names       = 1973 EB
 | named_after     = {{nowrap|[[Albert Einstein]] {{small|(physicist)}}<ref name="springer" />&nbsp;&nbsp;&nbsp;&nbsp;}}
 | mp_category     = [[main-belt]]{{·}}[[Hungaria family|Hungaria]]<ref name="MPC-Einstein" /><ref name="Spratt1990" />
 | orbit_ref       = <ref name="jpldata" />
 | epoch           = 4 September 2017 ([[Julian day|JD]] 2458000.5)
 | uncertainty     = 0
 | observation_arc = 43.43 yr (15,864 days)
 | aphelion        = 2.1242 [[Astronomical unit|AU]]
 | perihelion      = 1.7430 AU
 | semimajor       = 1.9336 AU
 | eccentricity    = 0.0986
 | period          = 2.69 [[Julian year (astronomy)|yr]] (982 days)
 | mean_anomaly    = 150.59[[Degree (angle)|°]]
 | mean_motion     = {{Deg2DMS|0.3666|sup=ms}} / day
 | inclination     = 22.683°
 | asc_node        = 357.08°
 | arg_peri        = 217.74°
 | mean_diameter   = {{val|3.975|0.154|ul=km}}<ref name="WISE" /><ref name="Masiero-2011" /><br />5.66 km {{small|(calculated)}}<ref name="lcdb" />
 | rotation        = {{val|5.4846|0.0001|ul=h}}<ref name="geneva-obs" /><br />{{val|5.485|0.002}} h<ref name="Warner-2010e" /><br />{{val|5.48503|0.00005}} h {{small|(S)}}<ref name="Hanus-2016" /><br />{{val|5.487|0.001}} h<ref name="Warner-2005f" />
 | albedo          = 0.40 {{small|(assumed)}}<ref name="lcdb" /><br />{{val|0.810|0.169}}<ref name="WISE" /><ref name="Masiero-2011" />
 | spectral_type   = [[X-type asteroid|X]] {{small|([[Tholen classification|Tholen]])}}, Xe {{small|([[SMASS classification|SMASS]])}}<ref name="jpldata" /><br />[[X-type asteroid|X]]<ref name="lcdb" />{{·}}[[E-type asteroid|E]]<ref name="WISE" /><br />[[Asteroid color indices|B–V]] = 0.720<ref name="jpldata" /><br />[[Asteroid color indices|U–B]] = 0.261<ref name="jpldata" />
 | abs_magnitude   = 12.85<ref name="jpldata" /><ref name="WISE" /><ref name="lcdb" />
}}

'''2001 Einstein''' ([[Minor planet provisional designation|''prov. designation'']]: {{mp|1973 EB}}) is a bright [[Hungaria asteroid]] from the innermost region of the [[asteroid belt]]. It was discovered by Swiss astronomer [[Paul Wild (Swiss astronomer)|Paul Wild]] at [[Zimmerwald Observatory]] near Bern, Switzerland, on 5 March 1973.<ref name="MPC-Einstein" /> The [[X-type asteroid]] (Xe) has a [[rotation period]] of 5.5 hours and measures approximately {{convert|5|km|mi|abbr=off|sp=us}} in diameter. It is named after physicist [[Albert Einstein]] (1879–1955).<ref name="springer" />