සෙරස් (වාමන ග්‍රහලෝකය)

විකිපීඩියා, නිදහස් විශ්වකෝෂය වෙතින්
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Ceres - RC3 - Haulani Crater (22381131691).jpg
Ceres  ⚳
Ceres_-_RC3_-_Haulani_Crater_(22381131691).jpg
A view of Ceres in natural color, by the Dawn spacecraft in May 2015[lower-alpha 1]
සොයාගැනීම[1] and designation
‍සොයාගත් තැනැත්තා Giuseppe Piazzi
සොයාගත් දිනය 1 January 1801
නාමකරණය
Named after Cerēs
වෙනත් නම්[note 1]A899 OF; 1943 XB
Minor planet
category
Dwarf planet
Asteroid belt
නාම විශේෂණය Cererian /sˈrɪəriən/,
rarely Cererean /sɛrˈrən/[2]
Epoch 2014-Dec-09
(JD 2,457,000.5)
Aphelion2.9773 AU
(445,410,000 කි.මි.)
Perihelion 2.5577 AU
(382,620,000 කි.මි.)
උප ප්‍රධාන අක්ෂය 2.7675 AU
(414,010,000 කි.මි.)
විකේන්ද්‍රිකතාවය 0.075823
පරිභ්‍රමණ කාලය 4.60 yr
1,681.63 d
Synodic period 466.6 d
1.278 yr
පරිභ්‍රමණ වේගය 17.905 km/s
Mean anomaly 95.9891 °
ආනතිය 10.593 ° to ecliptic
9.20° to invariable plane[4]
Longitude of ascending node 80.3293 °
Argument of perihelion 72.5220 °
මාන (965.2 × 961.2
× 891.2) ± 2.0 km[5]
මාධ්‍ය අරය 473 කි.මි.[5]
පෘෂ්ඨික වර්ගපලය 2,770,000 km2[6]
පරිමාව 421,000,000 km3[6]
ස්කන්ධය 9.393±0.005×1020 kg[5]
0.0001Earths
0.0128 Moons
මාධ්‍ය ඝනත්වය 2.161±0.009 g/cm3[7]
සමකාසන්න ගුරුත්වය0.29 m/s2[6]
0.029 g
Sidereal rotation
period
0.3781 d
9.074170±0.000002 h[8]
සමකයේදී භ්‍රමණ ප්‍රවේගය 92.61 m/s[6]
අක්ෂිය ඇලය [9]
උතුරු ධ්‍රැවයේ දකුණු ආරෝහණය 291.42744°[10]
North pole declination 66.764°[9]
Geometric albedo0.090±0.0033 (V-band)[14]
පෘෂ්ඨික උෂ්ණත්වය
   Kelvin
minmeanmax
≈ 168 K[15]235 K[16]
Spectral typeC[11]
Apparent magnitude 6.64[12] to 9.34[13]
Absolute magnitude (H) 3.34[3]
Angular diameter 0.854″ to 0.339″

සෙරස් (ඉංග්‍රීසි:  Ceres), සෞරග්‍රහ මණ්ඩලයට අයත් වාමන ග්‍රහලෝකයකි.


සටහන්[සංස්කරණය]

  1. This image was taken by the Dawn spacecraft on 2 May 2015, during a "rotation characterization" orbit, 13,642 kilometres (8,477 mi) above the surface of Ceres. Visible at center and center right are two bright spots, a phenomenon common on Ceres, in Oxo and Haulani craters respectively. Ahuna Mons is also visible in the image as a noticeable, bluff hill, seen just right of bottom.

මූලාශ්‍ර[සංස්කරණය]

  1. Schmadel, Lutz (2003). Dictionary of minor planet names (5th සංස්.). Germany: Springer. පි. 15. ISBN 978-3-540-00238-3. https://books.google.com/?id=KWrB1jPCa8AC&pg=PA15. 
  2. Simpson, D. P. (1979). Cassell's Latin Dictionary (5th සංස්.). London: Cassell Ltd. පි. 883. ISBN 978-0-304-52257-6. 
  3. 3.0 3.1 "1 Ceres". JPL Small-Body Database Browser. Archived from the original on 4 August 2012. Retrieved 8 January 2015. Cite uses deprecated parameter |deadurl= (help)
  4. "The MeanPlane (Invariable plane) of the Solar System passing through the barycenter". 3 April 2009. Archived from the original on 14 May 2009. Retrieved 10 April 2009. Cite uses deprecated parameter |deadurl= (help) (produced with Solex 10 Archived 29 April 2009 at WebCite written by Aldo Vitagliano; see also Invariable plane)
  5. 5.0 5.1 5.2 "05. Dawn Explores Ceres Results from the Survey Orbit" (PDF). Archived from the original (PDF) on 5 September 2015. Cite uses deprecated parameter |deadurl= (help)
  6. 6.0 6.1 6.2 6.3 Calculated based on the known parameters
  7. "DPS 2015: First reconnaissance of Ceres by Dawn".
  8. Chamberlain, Matthew A.; Sykes, Mark V.; Esquerdo, Gilbert A. (2007). "Ceres lightcurve analysis – Period determination". Icarus. 188 (2): 451–456. Bibcode:2007Icar..188..451C. doi:10.1016/j.icarus.2006.11.025.CS1 maint: multiple names: authors list (link)
  9. 9.0 9.1 "Asteroid Ceres P_constants (PcK) SPICE kernel file". Retrieved 5 November 2015.
  10. Konopliv, A.S.; Park, R.S.; Vaughan, A.T.; Bills, B.G.; Asmar, S.W.; Ermakov, A.I.; Rambaux, N.; Raymond, C.A.; Castillo-Rogez, J.C.; Russell, C.T.; Smith, D.E.; Zuber, M.T. (2018). "The Ceres gravity field, spin pole, rotation period and orbit from the Dawn radiometric tracking and optical data". Icarus. 299: 411–429. Bibcode:2018Icar..299..411K. doi:10.1016/j.icarus.2017.08.005.
  11. Rivkin, A. S.; Volquardsen, E. L.; Clark, B. E. (2006). "The surface composition of Ceres:Discovery of carbonates and iron-rich clays" (PDF). Icarus. 185 (2): 563–567. Bibcode:2006Icar..185..563R. doi:10.1016/j.icarus.2006.08.022. Retrieved 8 December 2007.CS1 maint: multiple names: authors list (link)
  12. Menzel, Donald H.; Pasachoff, Jay M. (1983). A Field Guide to the Stars and Planets (2nd සංස්.). Boston: Houghton Mifflin. පි. 391. ISBN 978-0-395-34835-2. 
  13. APmag and AngSize generated with Horizons(Ephemeris: Observer Table: Quantities = 9,13,20,29) Archived 5 October 2011 at WebCite
  14. Li, Jian-Yang; McFadden, Lucy A.; Parker, Joel Wm. (2006). "Photometric analysis of 1 Ceres and surface mapping from HST observations". Icarus. 182 (1): 143–160. Bibcode:2006Icar..182..143L. doi:10.1016/j.icarus.2005.12.012. Retrieved 8 December 2007.CS1 maint: multiple names: authors list (link)
  15. Angelo, Joseph A., Jr (2006). Encyclopedia of Space and Astronomy. New York: Infobase. පි. 122. ISBN 978-0-8160-5330-8. 
  16. Saint-Pé, O.; Combes, N.; Rigaut F. (1993). "Ceres surface properties by high-resolution imaging from Earth". Icarus. 105 (2): 271–281. Bibcode:1993Icar..105..271S. doi:10.1006/icar.1993.1125.CS1 maint: multiple names: authors list (link)
"https://si.wikipedia.org/w/index.php?title=සෙරස්_(වාමන_ග්‍රහලෝකය)&oldid=437143" වෙතින් සම්ප්‍රවේශනය කෙරිණි