342 Endymion

{{Short description|Main-belt asteroid}}

{{Use dmy dates|date=October 2019}}

{{Infobox planet

| minorplanet=yes

| background=#D6D6D6

| name=342 Endymion

| discoverer=Max Wolf

| discovered=17 October 1892

| mpc_name=(342) Endymion

| pronounced={{IPAc-en|ɛ|n|'|d|ɪ|m|i|ə|n}}{{MW|Endymion}}

|image= Орбита астероида 342.png

|caption=Orbital diagram | alt_names=1892 K

| named_after=Endymion

| mp_category=Main belt
König{{·}}Bower

| epoch=31 July 2016 (JD 2457600.5)

| semimajor={{Convert|2.56883|AU|Gm|abbr=on}}

| perihelion={{Convert|2.24079|AU|Gm|abbr=on}}

| aphelion={{Convert|2.89687|AU|Gm|abbr=on|lk=on}}

| eccentricity=0.12770

| period=4.12 yr (1503.8 d)

| inclination=7.34850°

| asc_node=232.690°

| arg_peri=224.708°

| mean_anomaly=335.858°

| dimensions={{val|60.63|2.8|ul=km}}

| mass=

| density=

| rotation={{Convert|6.319|h|d|abbr=on|lk=on}}

| spectral_type=

| abs_magnitude=10.22

| albedo={{val|0.0393|0.004}}

| mean_motion={{Deg2DMS|0.239387|sup=ms}} / day

| orbit_ref=

| observation_arc=115.38 yr (42141 d)

| uncertainty=0

}}

342 Endymion is a large Main belt asteroid.{{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=342;cad=1 |title=342 Endymion (1892 K) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=11 May 2016}} It was discovered by Max Wolf on 17 October 1892 in Heidelberg. It was the first asteroid to receive the name of a male god.Lutz D. Schmadel, Dictionary of minor planet names (6th Edition), p. 42. Springer Verlag, Berlin/Heidelberg 2012, {{ISBN|3-642-29717-X}}