Panopaea (minor planet designation: 70 Panopaea) is a large main beltasteroid. Its orbit is close to those of the Eunomia asteroid family; however, Panopaea is a dark, primitive carbonaceousC-type asteroid in contrast to the S-type asteroids of the Eunomian asteroids. The spectra of the asteroid displays evidence of aqueous alteration.[10]Photometric studies give a rotation period of 15.797 hours and an amplitude of 0.11±0.01 in magnitude. Previous studies that suggested the rotation period may be twice this amount were rejected based upon further observation.[11]
The asteroid frequently makes close approaches with 16 Psyche, such as on 12 June 2040 when it will make a close approach of 0.00602 AU (2.34 Lunar distances, or approx. 770,000 km, 478,455 mi) to the asteroid, and on 2 June 2095 when it will come only 0.003372 AU (1.31 LD) to the asteroid.[2]
References
^ ab"Discovery Circumstances: Numbered Minor Planets (1)-(5000)". IAU: Minor Planet Center. from the original on 2 February 2009. Retrieved 31 December 2008.
^'Panopea' in Noah Webster (1884) A Practical Dictionary of the English Language
^"(70) Panopaea". AstDyS. Italy: University of Pisa. Retrieved 31 December 2008.
^ abTedesco; et al. (2004). . IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Archived from the original on 17 August 2009. Retrieved 31 December 2008.
^ abCarry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
^Neese (2005). . EAR-A-5-DDR-TAXONOMY-V5.0. Planetary Data System. Archived from the original on 5 August 2009. Retrieved 27 December 2008.
^Tholen (2007). . EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on 16 August 2009. Retrieved 31 December 2008.
^Fornasier, S.; et al. (February 1999), "Spectroscopic comparison of aqueous altered asteroids with CM2 carbonaceous chondrite meteorites", Astronomy and Astrophysics Supplement, 135: 65−73, Bibcode:1999A&AS..135...65F, doi:10.1051/aas:1999161.
^Marciniak, Anna; et al. (June 2016), "Difficult cases in photometric studies of asteroids", 37th Meeting of the Polish Astronomical Society, held 7-10 September, 2015 at Adam Mickiewicz University in Poznań, Poland. Proceedings of the Polish Astronomical Society, vol. 3, pp. 84−87, Bibcode:2016pas..conf...84M.
^Plicht, Christof A. (24 December 2016), "Dunér, Nils Christoffer", Biographical Encyclopedia of Astronomers, doi:10.1007/978-1-4419-9917-7_388.
^Šidlichovský, M. (1999), Svoren, J.; Pittich, E. M.; Rickman, H. (eds.), "Resonances and chaos in the asteroid belt", Evolution and source regions of asteroids and comets : proceedings of the 173rd colloquium of the International Astronomical Union, held in Tatranska Lomnica, Slovak Republic, August 24–28, 1998, pp. 297–308, Bibcode:1999esra.conf..297S.
External links
70 Panopaea at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
April 08, 2023
panopaea, panopaea, minor, planet, designation, large, main, belt, asteroid, orbit, close, those, eunomia, asteroid, family, however, panopaea, dark, primitive, carbonaceous, type, asteroid, contrast, type, asteroids, eunomian, asteroids, spectra, asteroid, di. Panopaea minor planet designation 70 Panopaea is a large main belt asteroid Its orbit is close to those of the Eunomia asteroid family however Panopaea is a dark primitive carbonaceous C type asteroid in contrast to the S type asteroids of the Eunomian asteroids The spectra of the asteroid displays evidence of aqueous alteration 10 Photometric studies give a rotation period of 15 797 hours and an amplitude of 0 11 0 01 in magnitude Previous studies that suggested the rotation period may be twice this amount were rejected based upon further observation 11 70 PanopaeaDiscovery 1 Discovered byHermann Mayer Salomon GoldschmidtDiscovery siteParis ObservatoryDiscovery date5 May 1861DesignationsMPC designation 70 PanopaeaPronunciation p ae n e ˈ p iː e 3 Named afterPanopeaMinor planet categorymain belt 2 AdjectivesPanopaeanOrbital characteristics 4 Epoch 30 November 2008Aphelion3 0903 AUPerihelion2 1402 AUSemi major axis2 61526 AUEccentricity0 181641Orbital period sidereal 1544 79 days 4 23 years Mean anomaly264 193 Inclination11 584 Longitude of ascending node47 783 Argument of perihelion256 016 Physical characteristicsDimensions122 17 2 3 km mean 5 Mass 4 33 1 09 1018 kg 6 Mean density3 48 1 05 6 g cm3Synodic rotation period15 87 0 04 hours 7 Geometric albedo0 0675 0 003 5 Spectral typeC 8 Absolute magnitude H 8 11 9 Panopaea was discovered by Hermann Goldschmidt on 5 May 1861 1 It was his fourteenth and last asteroid discovery It is named after Panopea a nymph in Greek mythology the name was chosen by Robert Main President of the Royal Astronomical Society 12 In 1862 Swedish astronomer Nils Christoffer Duner gave a doctoral thesis on the orbital elements of this asteroid 13 The orbit of 70 Panopaea places it in a mean motion resonance with the planets Jupiter and Saturn The computed Lyapunov time for this asteroid is 24 000 years indicating that it occupies a chaotic orbit that will change randomly over time because of gravitational perturbations of the planets 14 The asteroid frequently makes close approaches with 16 Psyche such as on 12 June 2040 when it will make a close approach of 0 00602 AU 2 34 Lunar distances or approx 770 000 km 478 455 mi to the asteroid and on 2 June 2095 when it will come only 0 003372 AU 1 31 LD to the asteroid 2 References Edit a b Discovery Circumstances Numbered Minor Planets 1 5000 IAU Minor Planet Center Archived from the original on 2 February 2009 Retrieved 31 December 2008 a b 70 Panopaea JPL Small Body Database Jet Propulsion Laboratory Retrieved 31 December 2008 Panopea in Noah Webster 1884 A Practical Dictionary of the English Language 70 Panopaea AstDyS Italy University of Pisa Retrieved 31 December 2008 a b Tedesco et al 2004 Supplemental IRAS Minor Planet Survey SIMPS IRAS A FPA 3 RDR IMPS V6 0 Planetary Data System Archived from the original on 17 August 2009 Retrieved 31 December 2008 a b Carry B December 2012 Density of asteroids Planetary and Space Science 73 1 98 118 arXiv 1203 4336 Bibcode 2012P amp SS 73 98C doi 10 1016 j pss 2012 03 009 See Table 1 Schroll amp Schober 1983 Lightcurves and rotation periods for the asteroids 70 Panopaea and 235 Carolina Astronomy and Astrophysics Supplement Series 53 77 79 Bibcode 1983A amp AS 53 77S Neese 2005 Asteroid Taxonomy EAR A 5 DDR TAXONOMY V5 0 Planetary Data System Archived from the original on 5 August 2009 Retrieved 27 December 2008 Tholen 2007 Asteroid Absolute Magnitudes EAR A 5 DDR ASTERMAG V11 0 Planetary Data System Archived from the original on 16 August 2009 Retrieved 31 December 2008 Fornasier S et al February 1999 Spectroscopic comparison of aqueous altered asteroids with CM2 carbonaceous chondrite meteorites Astronomy and Astrophysics Supplement 135 65 73 Bibcode 1999A amp AS 135 65F doi 10 1051 aas 1999161 Marciniak Anna et al June 2016 Difficult cases in photometric studies of asteroids 37th Meeting of the Polish Astronomical Society held 7 10 September 2015 at Adam Mickiewicz University in Poznan Poland Proceedings of the Polish Astronomical Society vol 3 pp 84 87 Bibcode 2016pas conf 84M Schmadel Lutz 2003 Dictionary of minor planet names fifth ed Germany Springer p 22 ISBN 3 540 00238 3 Plicht Christof A 24 December 2016 Duner Nils Christoffer Biographical Encyclopedia of Astronomers doi 10 1007 978 1 4419 9917 7 388 Sidlichovsky M 1999 Svoren J Pittich E M Rickman H eds Resonances and chaos in the asteroid belt Evolution and source regions of asteroids and comets proceedings of the 173rd colloquium of the International Astronomical Union held in Tatranska Lomnica Slovak Republic August 24 28 1998 pp 297 308 Bibcode 1999esra conf 297S External links Edit70 Panopaea at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 70 Panopaea at the JPL Small Body Database Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title 70 Panopaea amp oldid 1126711456, 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