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10199 Chariklo

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10199 Chariklo
Hubble svemirski teleskop slika Charikla snimljena 2015
Discovery[1][2]
Mjesto otkrićaKitt Peak Obs.
Datum otkrića15. februara 1997
Designations
(10199) Chariklo
Izgovor/ˈkærəkloʊ/[3]
Imenovan po
Χαρικλώ Khariklō
(Ancient Greek nymph)[4]
1997 CU26
kentaur[1][5] ·distant[2]
AdjectivesCharikloan, Charikloian /kærəˈkloʊ[upisan nepodržani znak]i[upisan nepodržani znak]ən/
Simbol
Orbital characteristics[1]
Epoha {{{epoha}}}
Uncertainty parameter 1
Observation arc26.51 yr (9,684 days)
Earliest precovery date5. novembra 1988
Aphelion18.545 AU
15.822 AU
Eccentricity0.1721
62.93 yr (22,987 days)
77,670°
0° 0m 56.52s / day
300.42°
  • 25 June 2066[6]
  • 17 December 2003 (previous)
242.90°
Jupiter MOID8.1850 AU
TJupiter3.4820
Physical characteristics
Mean diameter
248±18 km[7]
254 km[8]
(296x264x204 km)[9]
(287.6x270.4x198.2 km)[10]
7,004±0,036 h[5]
0,045±0,01
0,1±0,02[11]
0,035±0,01[7]
0,042±0,005[5]
0.057 (assumed)[5]
SMASS = D[1] ·D[5]
BR (G-mode)[12][13][14]
B−V = 0.84[14]
V−R = 0,5±0,03[14]
B−R = 1.34[14]
V−I = 1,02±0,02[14]
R−J = 0.99[14]
V−J = 1,49±0,07[14]
J−H = 0.49[14]
V−H = 1,98±0,08[14]
18.3[15]
6,569±0,015 (R)[16] ·6.6[1] ·6.65[5][17] ·6.75[18] ·6.76[19][20] ·7,07±0,04[12] ·7,08±0,04[21] ·7,03±0,1[5] ·7,4±0,25[7]

10199 Chariklo je najveći poznati kentaur u Sunčevom sistemu. Kruži oko Sunca između Saturna i Urana, kruži oko Urana. Dana 26. marta 2014, astronomi su najavili otkriće dva prstena (nazvana Oyapock i Chuy po rijekama koje definišu granice Brazila)[22] oko Charikla promatranjem zvjezdane okultacije,[23][24] što ga čini prvom manjom planetom za koju je poznato da ima prstenje.[25][26]

Fotometrijska studija iz 2001. nije uspjela pronaći određeni period rotacije.[27] Infracrvena opažanja Charikla ukazuju na prisustvo leda,[28] koji se zapravo može nalaziti u njegovim prstenovima.[8]

Reference

[uredi | uredi izvor]
  1. ^ a b c d e "JPL Small-Body Database Browser: 10199 Chariklo (1997 CU26)" (2015-05-12 last obs.). Jet Propulsion Laboratory. Pristupljeno 16. 8. 2017.
  2. ^ a b "10199 Chariklo (1997 CU26)". Minor Planet Center. Pristupljeno 16. 8. 2017.
  3. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  4. ^ Schmadel, Lutz D. (2007). "(10199) Chariklo". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. str. 725. doi:10.1007/978-3-540-29925-7_7876. ISBN 978-3-540-00238-3.
  5. ^ a b c d e f g "LCDB Data for (10199) Chariklo". Asteroid Lightcurve Database (LCDB). Pristupljeno 16. 8. 2017.
  6. ^ "Horizons Batch for 10199 Chariklo (1997 CU26) on 2066-Jun-25" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Pristupljeno 25. 6. 2022. (JPL#41 Soln.date: 2022-Jun-09)
  7. ^ a b c Fornasier, S.; Lellouch, E.; Müller, T.; Santos-Sanz, P.; Panuzzo, P.; Kiss, C.; et al. (juli 2013). "TNOs are Cool: A survey of the trans-Neptunian region. VIII. Combined Herschel PACS and SPIRE observations of nine bright targets at 70–500 μm". Astronomy and Astrophysics. 555: 22. arXiv:1305.0449. Bibcode:2013A&A...555A..15F. doi:10.1051/0004-6361/201321329. S2CID 119261700.
  8. ^ a b c Braga-Ribas, F.; Sicardy, B.; Ortiz, J. L.; Snodgrass, C.; Roques, F.; Vieira-Martins, R.; et al. (april 2014). "A ring system detected around the Centaur (10199) Chariklo". Nature. 508 (7494): 72–75. arXiv:1409.7259. Bibcode:2014Natur.508...72B. doi:10.1038/nature13155. ISSN 0028-0836. PMID 24670644. S2CID 4467484.
  9. ^ Leiva, R.; Sicardy, B.; Camargo, J.I.B (august 2017). "Size and shape of Chariklo from multi-epoch stellar occultations". The Astronomical Journal. 154 (4): 159. arXiv:1708.08934. Bibcode:2017AJ....154..159L. doi:10.3847/1538-3881/aa8956. S2CID 54032928.
  10. ^ Morgado, B. E.; et al. (2021). "Refined physical parameters for Chariklo's body and rings from stellar occultations observed between 2013 and 2020". Astronomy & Astrophysics. 652: A141. arXiv:2107.07904. Bibcode:2021A&A...652A.141M. doi:10.1051/0004-6361/202141543. S2CID 236034389 Provjerite vrijednost parametra |s2cid= (pomoć).
  11. ^ Stansberry, J. A.; Cruikshank, D. P.; Grundy, W. G.; Margot, J. L.; Emery, J. P.; Fernandez, Y. R.; et al. (august 2005). "Albedos, Diameters (and a Density) of Kuiper Belt and Centaur Objects". American Astronomical Society. 37: 737. Bibcode:2005DPS....37.5205S.
  12. ^ a b Perna, D.; Barucci, M. A.; Fornasier, S.; DeMeo, F. E.; Alvarez-Candal, A.; Merlin, F.; et al. (februar 2010). "Colors and taxonomy of Centaurs and trans-Neptunian objects". Astronomy and Astrophysics. 510: A53. arXiv:0912.2621. Bibcode:2010A&A...510A..53P. doi:10.1051/0004-6361/200913654. S2CID 55619450.
  13. ^ Belskaya, Irina N.; Barucci, Maria A.; Fulchignoni, Marcello; Dovgopol, Anatolij N. (april 2015). "Updated taxonomy of trans-neptunian objects and centaurs: Influence of albedo". Icarus. 250: 482–491. Bibcode:2015Icar..250..482B. doi:10.1016/j.icarus.2014.12.004.
  14. ^ a b c d e f g h i "(10199) Chariklo and ring system". www.johnstonsarchive.net.
  15. ^ "AstDys (10199) Chariklo Ephemerides". Department of Mathematics, University of Pisa, Italy. Pristupljeno 10. 2. 2010.
  16. ^ Peixinho, N.; Delsanti, A.; Guilbert-Lepoutre, A.; Gafeira, R.; Lacerda, P. (oktobar 2012). "The bimodal colors of Centaurs and small Kuiper belt objects". Astronomy and Astrophysics. 546: 12. arXiv:1206.3153. Bibcode:2012A&A...546A..86P. doi:10.1051/0004-6361/201219057. S2CID 55876118.
  17. ^ Davies, John K.; McBride, Neil; Ellison, Sara L.; Green, Simon F.; Ballantyne, David R. (august 1998). "Visible and Infrared Photometry of Six Centaurs". Icarus. 134 (2): 213–227. Bibcode:1998Icar..134..213D. doi:10.1006/icar.1998.5931.
  18. ^ Romanishin, W.; Tegler, S. C. (mart 1999). "Rotation rates of Kuiper-belt objects from their light curves". Nature. 398 (6723): 129–132.(NatureHomepage). Bibcode:1999Natur.398..129R. doi:10.1038/18168. S2CID 4313184.
  19. ^ Peixinho, N.; Lacerda, P.; Ortiz, J. L.; Doressoundiram, A.; Roos-Serote, M.; Gutiérrez, P. J. (maj 2001). "Photometric study of Centaurs 10199 Chariklo (1997 CU26) and 1999 UG5". Astronomy and Astrophysics. 371 (2): 753–759. Bibcode:2001A&A...371..753P. doi:10.1051/0004-6361:20010382.
  20. ^ Romanishin, W.; Tegler, S. C. (decembar 2005). "Accurate absolute magnitudes for Kuiper belt objects and Centaurs". Icarus. 179 (2): 523–526. Bibcode:2005Icar..179..523R. doi:10.1016/j.icarus.2005.06.016.
  21. ^ Belskaya, I. N.; Bagnulo, S.; Barucci, M. A.; Muinonen, K.; Tozzi, G. P.; Fornasier, S.; et al. (novembar 2010). "Polarimetry of Centaurs (2060) Chiron, (5145) Pholus and (10199) Chariklo". Icarus. 210 (1): 472–479. Bibcode:2010Icar..210..472B. doi:10.1016/j.icarus.2010.06.005.
  22. ^ "Asteroid Chariklo's rings surprise astronomers". CBC News. 26. 3. 2014. Pristupljeno 27. 3. 2014.
  23. ^ "First Ring System Around Asteroid". ESO. 26. 3. 2014. Pristupljeno 2. 4. 2014.
  24. ^ Woo, Marcus (26. 3. 2014). "First Asteroid With Rings Discovered". National Geographic. Arhivirano s originala, 27. 3. 2014. Pristupljeno 26. 3. 2014.
  25. ^ "A second minor planet may possess Saturn-like rings". Space Daily. 17. 3. 2015.
  26. ^ Sokol, J. (20. 2. 2017). "The upstart asteroid who showed rings are for everybody". New Scientist. Pristupljeno 22. 2. 2017.
  27. ^ Peixinho; Doressoundiram (9. 11. 2000). "Photometric study of Centaurs 10199 Chariklo (1997CU26) and 1999UG5". Arhivirano s originala, 23. 6. 2007. Pristupljeno 9. 11. 2006.
  28. ^ Jewitt; Brown (17. 4. 2001). "Infrared Observations of Centaur 10119 Chariklo with possible surface variation" (PDF). Arhivirano s originala (PDF), 29. 11. 2004. Pristupljeno 9. 11. 2006.
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