Editing 60 Echo (section)

{{Short description|Main-belt asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
 | minorplanet = yes
 | image=60Echo (Lightcurve Inversion).png
 | image_scale =
 | caption= Three-dimensional model of 60 Echo created based on light-curve
 | background=#D6D6D6
 | name=60 Echo
 | discoverer=[[James Ferguson (American astronomer)|James Ferguson]]
 | discovered=September 14, 1860
 | mpc_name=(60) Echo
 | alt_names=
 | pronounced={{IPAc-en|ˈ|ɛ|k|oʊ}}
 | adjectives = Echoian {{IPAc-en|ɛ|ˈ|k|oʊ|.|i|ə|n}}
 | named_after = [[Echo (mythology)|Echo]]
 | mp_category=[[Main belt]]
 | epoch=December 31, 2006 ([[Julian day|JD]] 2454100.5)
 | semimajor={{Convert|2.394|AU|Gm|lk=on|abbr=on}}
 | perihelion={{Convert|1.958|AU|Gm|lk=on|abbr=on}}
 | aphelion={{Convert|2.830|AU|Gm|lk=on|abbr=on}}
 | eccentricity=0.182
 | period={{Convert|1353.002|days|years|2|abbr=on|lk=on}}
 | inclination=3.602°
 | asc_node=191.803°
 | arg_peri=270.477°
 | mean_anomaly=91.065°
 | dimensions=60.2 km<ref name=jpldata>{{cite web
  |id=2011-08-14 last obs
  |title=JPL Small-Body Database Browser: 60 Echo
  |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=60
  |publisher=[[Jet Propulsion Laboratory]]
  |access-date=2012-01-27}}</ref>
 | mass={{nowrap|(3.15 ± 0.32) × 10<sup>17</sup> kg<ref name="Carry2012"/>}}
 | density=2.78 ± 0.33<ref name="Carry2012"/> g/cm<sup>3</sup>
 | rotation=25.2 hr<ref name=jpldata/>
 | spectral_type=[[S-type asteroid|S]]<ref name=jpldata/>
 | abs_magnitude=8.21<ref name=jpldata/>
 | albedo=0.254<ref name=jpldata/><ref>{{Cite web |url=http://www.psi.edu/pds/resource/albedo.html |title=Asteroid Data Sets |access-date=12 January 2007 |archive-date=17 December 2009 |archive-url=https://web.archive.org/web/20091217104722/http://www.psi.edu/pds/resource/albedo.html |url-status=dead }}</ref>
}}

'''60 Echo''' is a quite large<!-- Is "quite large" technical language or is it opinion-based language? --> [[main-belt]] [[asteroid]]. It was discovered by [[James Ferguson (American astronomer)|James Ferguson]] of the [[United States Naval Observatory]] in [[Washington D.C.]], on September 14, 1860. It was his third and final asteroid discovery. It is named after [[Echo (mythology)|Echo]], a [[nymph]] in [[Greek mythology]].  James Ferguson had initially named it "Titania", not realizing that name was already used for a satellite of [[Uranus]].<ref>{{cite book|title=Appletons' annual cyclopaedia and register of important events of the year: 1862|year=1863|publisher=[[D. Appleton & Company]]|location=New York|page=173|url=https://archive.org/stream/1862appletonsan02newyuoft#page/n180/mode/1up}}</ref>
[[File:Орбита астероида (60).png|450px|thumb|left|Orbit]]
This object is orbiting the [[Sun]] with a [[orbital period|period]] of {{Convert|1353.002|days|years|2|disp=out|abbr=off}}, a [[semimajor axis]] of {{Val|2.394|ul=AU}}, and an [[orbital eccentricity|eccentricity]] of 0.18. Its [[orbital plane]] is at an inclination of 3.6° to the [[plane of the ecliptic]]. This is a stony [[S-type asteroid]] with a cross-sectional size of 60.2&nbsp;km that is spinning with a [[rotation period]] of 25.2&nbsp;hr.<ref name=jpldata/> Echo has been studied by [[radar astronomy|radar]].<ref name="detected">{{cite web
  |title=Radar-Detected Asteroids and Comets
  |publisher=NASA/JPL Asteroid Radar Research
  |url=http://echo.jpl.nasa.gov/asteroids/
  |access-date=2012-01-23}}</ref> It is not known to be a member of any [[asteroid family]].<ref name=Carruba2016/>