632 Pyrrha

{{Short description|Main-belt asteroid}}

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

{{Infobox planet

| minorplanet= yes

| name= 632 Pyrrha

| background = #D6D6D6

| image = 000632-asteroid shape model (632) Pyrrha.png

| image_scale =

| caption = Modelled shape of Pyrrha from its lightcurve

| mpc_name= (632) Pyrrha

| alt_names= 1907 YX

| pronounced = {{IPAc-en|'|p|ɪr|ə}},{{OED|Pyrrhic}}

| discoverer= August Kopff

| discovered= 5 April 1907

| discovery_site= Heidelberg

| epoch= 31 July 2016 (JD 2457600.5)

| eccentricity= 0.18979

| semimajor= {{Convert|2.6639|AU|Gm|abbr=on}}

| perihelion= {{Convert|2.1583|AU|Gm|abbr=on}}

| aphelion= {{Convert|3.1695|AU|Gm|abbr=on|lk=on}}

| period= 4.35 yr (1588.1 d)

| inclination= 2.2156°

| asc_node= 356.505°

| arg_peri= 252.767°

| mean_anomaly= 33.9510°

| mean_motion= {{Deg2DMS|0.22669|sup=ms}} / day

| orbit_ref= {{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=632;cad=1 |title=632 Pyrrha (1907 YX) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=5 May 2016}}

| observation_arc= 109.03 yr (39823 d)

| uncertainty= 0

| abs_magnitude= 11.4

| rotation= {{Convert|4.1167|h|d|abbr=on|lk=on}}

}}

632 Pyrrha is a minor planet orbiting the Sun.

Photometric observations of the minor planet in 2011 gave a rotation period of {{Val|4.1167|0.001|u=h}} with an amplitude of {{Val|0.40|0.04}} in magnitude. This result rules out previous determinations of the period.