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U etogo termina sushestvuyut i drugie znacheniya sm Pak Pak angl Puck vnutrennij sputnik planety Uran Byl otkryt 30 dekabrya 1985 goda po snimkam sdelannymi apparatom Voyadzher 2 i poluchil vremennoe oboznachenie S 1985 U 1 Nazvan po imeni elfa iz keltskoj mifologii i anglijskogo folklora kotoryj yavlyaetsya personazhem v pese Shekspira Son v letnyuyu noch Takzhe oboznachaetsya kak Uran XV PakSputnik UranaPervootkryvatel S Sinnot Voyadzher 2 Data otkrytiya 30 dekabrya 1985Orbitalnye harakteristikiBolshaya poluos 86 004 444 0 064 kmEkscentrisitet 0 00012 0 000061Period obrasheniya 0 76183287 0 000000014 dNaklonenie orbity 0 31921 0 021 k ekvatoru Urana Fizicheskie harakteristikiSrednij radius 81 2 kmPloshad poverhnosti 82 400 km Massa 2 9 1018 kgPlotnost 1 3 g sm3 predpolozhitelno Uskorenie svobodnogo padeniya 0 028 m s2Vtoraya kosmicheskaya skorost v 2 0 069 km sPeriod vrasheniya vokrug osi sinhronizirovanAlbedo 0 11 0 1 pri dline volny 0 55 mkm Vidimaya zvyozdnaya velichina 20 5Temperatura poverhnosti 209 15 S Mediafajly na VikiskladeInformaciya v Vikidannyh Pak krupnejshij iz vnutrennih sputnikov Urana Po razmeram on zanimaet promezhutochnoe polozhenie mezhdu Porciej i Mirandoj naimenshej iz pyati krupnyh sputnikov Ego orbita takzhe prolegaet mezhdu dvumya etimi sputnikami Za isklyucheniem orbity radiusa v 81 km geometricheskogo albedo 0 11 spektralnyh parametrov i informacii o kraterah o Pake prakticheski nichego ne izvestno Sredi otkrytyh Voyadzherom 2 sputnikov tolko Pak udalos obnaruzhit dostatochno rano chtoby uspet perenastroit apparat dlya polucheniya bolee podrobnyh snimkov Pak imeet slegka vytyanutuyu formu s sootnosheniem poperechnogo razmera k prodolnomu 0 97 0 04 Ego poverhnost gusto useyana kraterami i imeet seryj cvet Tri kratera na poverhnosti Paka poluchili sobstvennoe nazvanie samyj bolshoj iz kotoryh dostigaet 45 kilometrov v diametre Issledovaniya kosmicheskim teleskopom Habbl i krupnymi nazemnymi teleskopami vyyavili v spektre Paka linii poglosheniya vodyanogo lda PrimechaniyaJacobson R A The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager 2 Observations angl The Astronomical Journal journal IOP Publishing 1998 Vol 115 P 1195 1199 doi 10 1086 300263 3 iyunya 2016 goda Karkoschka Erich Voyager s Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites angl Icarus journal Elsevier 2001 Vol 151 P 69 77 doi 10 1006 icar 2001 6597 3 noyabrya 2017 goda Vychisleno po znacheniyam drugih parametrov Karkoschka Erich Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope angl Icarus journal Elsevier 2001 Vol 151 P 51 68 doi 10 1006 icar 2001 6596 29 avgusta 2017 goda Smith B Hansen C IAU Circular No 4159 neopr nedostupnaya ssylka istoriya 16 yanvarya 1986 Data obrasheniya 6 avgusta 2006 Planet and Satellite Names and Discoverers neopr Gazetteer of Planetary Nomenclature USGS Astrogeology 21 iyulya 2006 Data obrasheniya 5 avgusta 2006 Arhivirovano 17 avgusta 2011 goda Thomas P Voyager observations of 1985U1 angl Icarus Elsevier 1987 Vol 72 P 79 83 doi 10 1016 0019 1035 87 90121 7 18 avgusta 2019 goda Smith B A Voyager 2 in the Uranian System Imaging Science Results angl Science journal 1986 4 July vol 233 no 4759 P 43 64 doi 10 1126 science 233 4759 43 Bibcode 1986Sci 233 43S PMID 17812889 Dumas Christophe Hubble Space Telescope NICMOS Multiband Photometry of Proteus and Puck angl The Astronomical Journal journal IOP Publishing 2003 Vol 126 P 1080 1085 doi 10 1086 375909 21 yanvarya 2016 goda Ssylki neopr Arhivirovano iz originala 27 sentyabrya 2011 goda by NASA s Solar System Exploration Jacobson R A The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager 2 Observations angl The Astronomical Journal journal IOP Publishing 1998 Vol 115 no 3 P 1195 1199 doi 10 1086 300263 Bibcode 1998AJ 115 1195J angl Voyager s Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites angl Icarus journal Elsevier 2001 Vol 151 no 1 P 69 77 doi 10 1006 icar 2001 6597 Bibcode 2001Icar 151 69K
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