542 Susanna

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

{{Infobox planet

| minorplanet= yes

| background= #D6D6D6

| name= 542 Susanna

| mpc_name= (542) Susanna

| alt_names= 1904 OQ

| discoverer= Paul Götz
August Kopff

| discovered= 15 August 1904

| discovery_site= Heidelberg

| epoch= 31 July 2016 (JD 2457600.5)

| eccentricity= 0.14003

| semimajor= {{Convert|2.9084|AU|Gm|abbr=on}}

| perihelion= {{Convert|2.5011|AU|Gm|abbr=on}}

| aphelion= {{Convert|3.3156|AU|Gm|abbr=on|lk=on}}

| period= 4.96 yr (1811.7 d)

| inclination= 12.076°

| asc_node= 152.993°

| arg_peri= 216.495°

| mean_anomaly= 197.019°

| mean_motion= {{Deg2DMS|0.19871|sup=ms}} / day

| orbit_ref= {{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=542;cad=1 |archive-url=https://web.archive.org/web/20170305001803/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=542;cad=1 |url-status=dead |archive-date=5 March 2017 |title=542 Susanna (1904 OQ) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=5 May 2016}}

| observation_arc= 111.66 yr (40784 d)

| uncertainty= 0

| abs_magnitude= 9.36

| rotation= {{Convert|10.069|h|d|abbr=on|lk=on}}

| albedo= {{val|0.1843|0.009}}

| mean_radius= {{val|20.785|0.5}} km

}}

542 Susanna is a minor planet orbiting the Sun.{{Cite book|publisher = Springer Berlin Heidelberg|date = 2003-01-01|isbn = 978-3-540-00238-3|pages = [https://archive.org/details/dictionaryminorp00schm/page/n70 57]|doi = 10.1007/978-3-540-29925-7_543|title = Dictionary of Minor Planet Names|url = https://archive.org/details/dictionaryminorp00schm|url-access = limited|chapter = (542) Susanna}}