548 Kressida

{{Short description|Minor planet}}

{{About|the asteroid|the moon of Uranus|Cressida (moon)}}

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

{{Infobox planet

| minorplanet = yes

| background = #D6D6D6

| name = 548 Kressida

| mpc_name = (548) Kressida

| pronounced = {{IPAc-en|'|k|r|ɛ|s|ᵻ|d|ə}}

| alt_names = 1904 PC

| discoverer = Paul Götz

| discovered = 14 October 1904

| discovery_site= Heidelberg

| epoch = 31 July 2016 (JD 2457600.5)

| eccentricity = 0.18534

| semimajor = {{Convert|2.2822|AU|Gm|abbr=on}}

| perihelion = {{Convert|1.8592|AU|Gm|abbr=on}}

| aphelion = {{Convert|2.7051|AU|Gm|abbr=on|lk=on}}

| period = {{cvt|1259.3|days|years|2|order=flip}}

| inclination = 3.8722°

| asc_node = 108.436°

| arg_peri = 320.351°

| mean_anomaly = 128.11°

| mean_motion = {{Deg2DMS|0.28588|sup=ms}} / day

| orbit_ref = {{Cite web | url=https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=548 | title=548 Kressida (1904 PC) | work=JPL Small-Body Database | publisher=NASA/Jet Propulsion Laboratory | access-date=5 May 2016 }}

| observation_arc = 111.50 yr (40725 d)

| uncertainty = 0

| abs_magnitude = 11.26

| rotation = {{Convert|11.9404|h|d|abbr=on|lk=on}}

| dimensions = {{val|14.0|1.9|u=km}}

| spectral_type = S

}}

548 Kressida is a minor planet orbiting the Sun. This object was discovered by German astronomer Paul Götz in 1904. It is named after the theatrical character Cressida. This stony S-type asteroid is orbiting at a distance of {{val|2.28|ul=AU}} from the Sun, with an orbital eccentricity (ovalness) of 0.185 and a period of {{cvt|1259.3|days|years|2|disp=out}}. The orbital plane is inclined at an angle of 3.87° to the ecliptic.

Photometric observations of this asteroid from 2021 were used to produce a light curve showing a rotation period of {{val|11.930|0.017|u=hours}} with a brightness amplitude of {{val|0.44|0.02}} in magnitude.

References

{{Reflist|refs=

{{cite journal | display-authors=1

| title=Photometry and Light Curve Analysis of Six Asteroids by GORA'S Observatories

| last1=Colazo | first1=Milagros | last2=Mottino | first2=Aldo

| last3=Scotta | first3=Damian | last4=Speranza | first4=Tiago

| last5=Fornari | first5=Cesar | last6=Stechina | first6=Ariel

| last7=Morales | first7=Mario | last8=Garcia | first8=Alberto

| last9=Santos | first9=Francisco | last10=Santucho | first10=Marcos

| last11=Suarez | first11=Nestor | last12=Wilberger | first12=Aldo

| last13=Arias | first13=Nicolas | last14=Melia | first14=Raul

| last15=Bellocchio | first15=Ezequiel | last16=Martini | first16=Matias

| last17=Borello | first17=Mateo | last18=Galarza | first18=Carlos

| last19=Chapman | first19=Andres | last20=Colazo | first20=Carlos

| journal=Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers

| volume=49 | issue=2 | pages=125–127

| date=April 2022 | bibcode=2022MPBu...49..125C }}

}}