224 Oceana

{{Short description|Main-belt asteroid}}

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

{{Infobox planet

| minorplanet=yes

| background=#D6D6D6

| name=224 Oceana

| discoverer=Johann Palisa

| discovered=30 March 1882

|image= Орбита астероида 224.png

|caption=Orbital diagram

| mpc_name=(224) Oceana

| pronounced={{IPAc-en|oʊ|ʃ|iː|'|eɪ|n|ə}},{{OED|Oceana}} {{IPAc-en|oʊ|ʃ|iː|'|ɑː|n|ə}}Noah Webster (1884) A Practical Dictionary of the English Language

| alt_names=A882 FA, 1899 EA
1933 HO

| named_after=Pacific Ocean

| mp_category=Main belt

| epoch=31 July 2016 (JD 2457600.5)

| semimajor={{Convert|2.64508|AU|Gm|abbr=on}}

| perihelion={{Convert|2.53086|AU|Gm|abbr=on}}

| aphelion={{Convert|2.75930|AU|Gm|abbr=on|lk=on}}

| eccentricity=0.043182

| period=4.30 yr (1571.3 d)

| inclination=5.84243°

| asc_node=352.815°

| arg_peri=284.346°

| mean_anomaly=1.46287°

| avg_speed=18.31 km/s

| dimensions={{val|61.82|2.1|ul=km}}

| mass=

| density=

| rotation={{Convert|9.401|h|d|abbr=on|lk=on}}

| spectral_type=M

| abs_magnitude=8.59

| albedo={{val|0.1694|0.012}}

| single_temperature=

| mean_motion={{Deg2DMS|0.229111|sup=ms}} / day

| orbit_ref={{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=224;cad=1 |archive-url=https://web.archive.org/web/20200920071237/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=224;cad=1 |url-status=dead |archive-date=20 September 2020 |title=224 Oceana |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=12 May 2016}}

| observation_arc=117.02 yr (42742 d)

| uncertainty=0

}}

224 Oceana is an asteroid from the asteroid belt. It was discovered by Austrian astronomer Johann Palisa on 30 March 1882, in Vienna. It was named after the Pacific Ocean. Based upon its spectrum, it is classified as an M-type asteroid, but is not metallic.

A light curve generated from photometric observations of this asteroid at Pulkovo Observatory show a rotation period of 9.401 ± 0.001 hours and a brightness variation of 0.09 ± 0.01 in magnitude.

224 Oceana was one of five minor planets included in the 1993 study, Transition Comets -- UV Search for OH Emissions in Asteroids, which was research involving amateur astronomers who were permitted to make use of the Hubble Space Telescope.