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{{Short description|Main-belt asteroid}}
{| table border="1" cellspacing="0" cellpadding="2" align="right" style="margin-left: 1em"
{{Use dmy dates|date=September 2018}}
|+ '''158 Koronis'''
{{Infobox planet
|-
| minorplanet=yes
! bgcolor="#ffc0c0" colspan="2" | Orbital characteristics <sup>[ftp://ftp.lowell.edu/pub/elgb/astorb.html 1]</sup>
| background=#D6D6D6
|-
| name=158 Koronis
|[[Orbit]] type || [[Asteroid belt|Main belt]] ([[Koronis family|Koronis]])
| image= 158Koronis (Lightcurve Inversion).png
|-
| image_scale =
|[[Semimajor axis]] || 2.867 [[Astronomical Unit|AU]]
| caption=A three-dimensional model of 158 Koronis based on its light curve.
|-
| discovery_ref=<ref name="IAU_MPC"/>
|[[Perihelion]] distance || 2.705 [[Astronomical Unit|AU]]
| discoverer=[[Viktor Knorre]]
|-
| discovered=4 January 1876
|[[Aphelion]] distance || 3.030 [[Astronomical Unit|AU]]
| mpc_name=(158) Koronis
|-
| pronounced={{IPAc-en|k|ɒ|ˈ|r|oʊ|n|ᵻ|s}}<ref>{{OED|coronis}}</ref>
|[[Orbital period]] || 4.86 [[year]]s
| adjective=Koronidian<!--Greek gen. κορωνίδος--> {{IPAc-en|k|ɒr|ə|ˈ|n|ɪ|d|i|ə|n}}<ref>McClintock & Strong (1894) ''Cyclopaedia of Biblical, Theological, and Ecclesiastical Literature''</ref>
|-
| alt_names=A876 AA; 1893 PA;<br/>1911 HB; 1955 HA1
|[[Inclination]] || 1.00°
| mp_category=[[Main belt]]
|-
| orbit_ref=<ref name="JPL"/><ref name="lowell">{{Cite web |url=http://ftp.lowell.edu/pub/elgb/astorb.html |website=astorb |title=The Asteroid Orbital Elements Database |publisher=[[Lowell Observatory]] }}</ref>
|[[Eccentricity (orbit)|Eccentricity]] || 0.057
| epoch=31 July 2016 ([[Julian day|JD]] 2457600.5)
|-
| semimajor={{Convert|2.86858|AU|Gm|abbr=on}}
! bgcolor="#ffc0c0" colspan="2" | Physical characteristics <sup>[ftp://ftp.lowell.edu/pub/elgb/astorb.html 1]</sup>
| perihelion={{Convert|2.71904|AU|Gm|abbr=on}}
|-
| aphelion={{Convert|3.0181|AU|Gm|abbr=on|lk=on}}
|[[Diameter]] || 35.4 km
| eccentricity=0.052130
|-
| period=4.86 [[Julian year (astronomy)|yr]] (1774.6 [[Julian year (astronomy)|d]])
|[[Rotation period]] || 14.218 [[hour]]s
| inclination=1.0015°
|-
| asc_node=277.96°
|[[Spectral class]] || [[S-type asteroid|S]]
| arg_perihelion=
|-
| mean_anomaly=15.346[[Degree (angle)|°]]
|[[Absolute magnitude|Abs. magnitude]] || 9.27
| avg_speed=17.80&nbsp;km/s
|-
| dimensions={{val|35.37|1.4|ul=km}}
|[[Albedo]] <sup>[http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html 4]</sup> || 0.277
| mass=
|-
| density=
! bgcolor="#ffc0c0" colspan="2" | History <sup>[http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html 2]</sup>
| surface_grav=
|-
| escape_velocity=
|Discoverer || [[Viktor Knorre|V. Knorre]], [[1876]]
| sidereal_day=14.218 h (0.592 [[Sidereal day|d]])
|}
| axial_tilt=
| pole_ecliptic_lat=
| pole_ecliptic_lon=
| spectral_type=[[S-type asteroid|S]]<ref name="DeMeo2009"/>
| abs_magnitude=9.27
| albedo={{val|0.2766|0.024}}
| single_temperature=
| arg_peri=142.37°
| mean_motion={{Deg2DMS|0.20286|sup=ms}} / day
| observation_arc=122.53 yr (44755 d)
| uncertainty=0
| rotation={{Convert|14.218|h|d|abbr=on|lk=on}}
| moid={{Convert|1.7299|AU|Gm|abbr=on}}
| jupiter_moid={{Convert|2.16233|AU|Gm|abbr=on}}
| tisserand=3.297
}}


'''158 Koronis''' is a [[Asteroid belt|main-belt]] asteroid that was discovered by Russian astronomer [[Viktor Knorre]] on January 4, 1876, from the Berlin [[observatory]].<ref name="IAU_MPC"/> It was the first of his four asteroid discoveries. The meaning of the asteroid name is uncertain, but it may come from [[Coronis (mythology)|Coronis]] the mother of [[Asclepius]] from [[Greek mythology]]. Alternatively, it may come from Coronis, a nymph of the [[Hyades (mythology)|Hyades]] sisterhood.<ref name="Schmadel2012"/> The [[Koronis family]] is named after this asteroid.
'''158 Koronis''' ("kuh ROE niss") is a [[Asteroid belt|Main belt]] [[asteroid]]. It is an [[S-type asteroid]].


From its spectrum this is classified as an [[S-type asteroid]],<ref name="DeMeo2009"/> indicating a stony composition. [[Photometry (astronomy)|Photometric]] observations show a synodic [[rotation period]] of 14.206 ± 0.002 hours with a brightness variation of 0.28–0.43 in [[Magnitude (astronomy)|magnitude]].<ref name="Slivan2003"/> A subsequent study at the Altimira Observatory during 2010 was in agreement with this estimate, yielding a rotation period of 14.208 ± 0.040 hours.<ref name="Buchheim2011"/> Based on a model constructed from the lightcurve, the shape of Koronis resembles that of [[243 Ida]], an asteroid in the same family, although it is a bit larger. [https://web.archive.org/web/20030419143817/http://www.astro.helsinki.fi/~kaselain/asteroids.html]
It was discovered by [[Viktor Knorre]] on [[January 4]], [[1876]] from the [[Berlin]] [[observatory]]. It was the first of his four asteroid discoveries.


A collision involving 158 Koronis 15 million years ago created a cluster of 246 objects. 158 Koronis itself retained 98.7% of the total mass. These new objects formed the Koronis(2) family. Koronis(2) is a subfamily of the much larger [[Koronis family]].<ref name="MolnarHaegert2009"/>
The asteroid itself may not be spectacular, but the [[Koronis family|Koronidian family of asteroids]] named after it is one of the most important. One member of the family, [[243 Ida]], has been visited by [[spacecraft]], and gives some idea of how the other asteroids in the family may look.


==References==
Based on a model constructed from the lightcurve, the shape of Koronis resembles that of Ida, although it is a bit larger [http://www.astro.helsinki.fi/~kaselain/asteroids.html].
{{Reflist|refs=


<ref name="IAU_MPC">{{Citation
{{MinorPlanets Navigator|157 Dejanira|159 Aemilia}}
| title = Numbered Minor Planets 1–5000
{{MinorPlanets_Footer}}
| work = Discovery Circumstances
| publisher = IAU Minor Planet center
| url = https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html
| access-date= 2013-04-07
| postscript= .}}</ref>


<ref name="JPL">{{Citation
{{DEFAULTSORT:Koronis}}
| first1 = Donald K.
[[Category:Main Belt asteroids]]
| last1 = Yeomans
[[Category:Koronis asteroids]]
| title = 158 Koronis
[[Category:S-type asteroids]]
| work = JPL Small-Body Database Browser
[[Category:Asteroids named from Greek mythology]]
| publisher = [[NASA Jet Propulsion Laboratory]]
| url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=158
| access-date= 12 May 2016
| postscript= .}}</ref>


<ref name="Schmadel2012">{{Citation
[[ast:158 Koronis]]
| first1 = Lutz D.
[[de:Koronis (Asteroid)]]
| last1 = Schmadel
[[es:(158) Koronis]]
| title = Dictionary of Minor Planet Names
[[eu:158 Koronis]]
| publisher = Springer
[[fa:سیارک ۱۵۸]]
| page = 27
[[fr:(158) Coronis]]
| edition = 6th
[[it:158 Koronis]]
| year = 2012
[[hu:158 Koronis]]
| isbn = 978-3642297182
[[ja:コロニス (小惑星)]]
| url = https://books.google.com/books?id=aeAg1X7afOoC&pg=PA27
[[no:158 Koronis]]
| postscript= .}}</ref>
[[nn:158 Koronis]]

[[pl:158 Koronis]]
<ref name="Slivan2003">{{Citation
[[pt:158 Koronis]]
| last1 = Slivan
[[sk:158 Koronis]]
| first1 = Stephen M.
[[sl:158 Koronis]]
| last2 = Binzel
[[sv:158 Koronis]]
| first2 = Richard P.
| last3 = Crespo da Silva
| first3 = Lucy D.
| last4 = Kaasalainen
| first4 = Mikko
| last5 = Lyndaker
| first5 = Mariah M.
| last6 = Krčo
| first6 = Marko
| display-authors = 1
| title = Spin vectors in the Koronis family: comprehensive results from two independent analyses of 213 rotation lightcurves
| journal = Icarus
| volume = 162
| issue = 2
| pages = 285–307
|date=April 2003
| doi = 10.1016/S0019-1035(03)00029-0
| bibcode = 2003Icar..162..285S
| postscript= .| citeseerx = 10.1.1.136.468
}}</ref>

<ref name="Buchheim2011">{{Citation
| last1 = Buchheim
| first1 = Robert K.
| title = Phase Curves of 158 Koronis and 535 Montague
| journal = The Minor Planet Bulletin
| volume = 38
| issue = 3
| pages = 128–130
|date=July 2011
| bibcode = 2011MPBu...38..128B
| postscript= .}}</ref>

<ref name="DeMeo2009">{{Citation
|last1=DeMeo
|first1=Francesca E.
|last2=Binzel
|first2=Richard P.
|last3=Slivan
|first3=Stephen M.
|last4=Bus
|first4=Schelte J.
|display-authors=1
|title=An extension of the Bus asteroid taxonomy into the near-infrared
|journal=Icarus
|volume=202
|issue=1
|pages=160–180
|date=July 2009
|doi=10.1016/j.icarus.2009.02.005
|bibcode=2009Icar..202..160D
|url=http://www.tara.tcd.ie/bitstream/2262/43276/1/PEER_stage2_10.1016%252Fj.icarus.2009.02.005.pdf
|access-date=2013-04-08
|postscript=.
|url-status=dead
|archive-url=https://web.archive.org/web/20140317200310/https://www.tara.tcd.ie/bitstream/2262/43276/1/PEER_stage2_10.1016/j.icarus.2009.02.005.pdf
|archive-date=March 17, 2014
|df=mdy }} See appendix A.</ref>

<ref name="MolnarHaegert2009">{{Citation
| last1 = Molnar
| first1 = Lawrence A.
| last2 = Haegert
| first2 = M. J.
| title = Details of Recent Collisions of Asteroids 832 Karin and 158 Koronis
| pages = 27.05
| work = American Astronomical Society, DPS meeting #41, #27.05
| date = September 2009
| volume = 41
| bibcode = 2009DPS....41.2705M
| postscript= .}}</ref>
}} <!-- end of reflist -->

== External links ==
* {{AstDys|158}}
* {{JPL small body}}

{{Minor planets navigator |157 Dejanira |number=158 |159 Aemilia}}
{{Small Solar System bodies}}
{{Authority control}}

{{DEFAULTSORT:Koronis}}
[[Category:Koronis asteroids|000158]]
[[Category:Discoveries by Viktor Knorre]]
[[Category:Named minor planets]]
[[Category:S-type asteroids (Tholen)|000158]]
[[Category:S-type asteroids (SMASS)|000158]]
[[Category:Astronomical objects discovered in 1876|18760104]]

Latest revision as of 11:18, 2 August 2024

158 Koronis
A three-dimensional model of 158 Koronis based on its light curve.
Discovery[1]
Discovered byViktor Knorre
Discovery date4 January 1876
Designations
(158) Koronis
Pronunciation/kɒˈroʊnɪs/[2]
A876 AA; 1893 PA;
1911 HB; 1955 HA1
Main belt
AdjectivesKoronidian /kɒrəˈnɪdiən/[3]
Orbital characteristics[4][5]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc122.53 yr (44755 d)
Aphelion3.0181 AU (451.50 Gm)
Perihelion2.71904 AU (406.763 Gm)
2.86858 AU (429.133 Gm)
Eccentricity0.052130
4.86 yr (1774.6 d)
17.80 km/s
15.346°
0° 12m 10.296s / day
Inclination1.0015°
277.96°
142.37°
Earth MOID1.7299 AU (258.79 Gm)
Jupiter MOID2.16233 AU (323.480 Gm)
TJupiter3.297
Physical characteristics
Dimensions35.37±1.4 km
14.218 h (0.5924 d)
14.218 h (0.592 d)
0.2766±0.024
S[6]
9.27

158 Koronis is a main-belt asteroid that was discovered by Russian astronomer Viktor Knorre on January 4, 1876, from the Berlin observatory.[1] It was the first of his four asteroid discoveries. The meaning of the asteroid name is uncertain, but it may come from Coronis the mother of Asclepius from Greek mythology. Alternatively, it may come from Coronis, a nymph of the Hyades sisterhood.[7] The Koronis family is named after this asteroid.

From its spectrum this is classified as an S-type asteroid,[6] indicating a stony composition. Photometric observations show a synodic rotation period of 14.206 ± 0.002 hours with a brightness variation of 0.28–0.43 in magnitude.[8] A subsequent study at the Altimira Observatory during 2010 was in agreement with this estimate, yielding a rotation period of 14.208 ± 0.040 hours.[9] Based on a model constructed from the lightcurve, the shape of Koronis resembles that of 243 Ida, an asteroid in the same family, although it is a bit larger. [1]

A collision involving 158 Koronis 15 million years ago created a cluster of 246 objects. 158 Koronis itself retained 98.7% of the total mass. These new objects formed the Koronis(2) family. Koronis(2) is a subfamily of the much larger Koronis family.[10]

References

[edit]
  1. ^ a b "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
  2. ^ "coronis". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ McClintock & Strong (1894) Cyclopaedia of Biblical, Theological, and Ecclesiastical Literature
  4. ^ Yeomans, Donald K., "158 Koronis", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
  5. ^ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory.
  6. ^ a b DeMeo, Francesca E.; et al. (July 2009), "An extension of the Bus asteroid taxonomy into the near-infrared" (PDF), Icarus, 202 (1): 160–180, Bibcode:2009Icar..202..160D, doi:10.1016/j.icarus.2009.02.005, archived from the original (PDF) on March 17, 2014, retrieved 2013-04-08. See appendix A.
  7. ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 27, ISBN 978-3642297182.
  8. ^ Slivan, Stephen M.; et al. (April 2003), "Spin vectors in the Koronis family: comprehensive results from two independent analyses of 213 rotation lightcurves", Icarus, 162 (2): 285–307, Bibcode:2003Icar..162..285S, CiteSeerX 10.1.1.136.468, doi:10.1016/S0019-1035(03)00029-0.
  9. ^ Buchheim, Robert K. (July 2011), "Phase Curves of 158 Koronis and 535 Montague", The Minor Planet Bulletin, 38 (3): 128–130, Bibcode:2011MPBu...38..128B.
  10. ^ Molnar, Lawrence A.; Haegert, M. J. (September 2009), "Details of Recent Collisions of Asteroids 832 Karin and 158 Koronis", American Astronomical Society, DPS meeting #41, #27.05, vol. 41, p. 27.05, Bibcode:2009DPS....41.2705M.
[edit]
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