Mẹ́rkúríù (plánẹ̀tì)

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Mẹ́rkúríù - Mercury  
Mercury
MESSENGER false color image of Mercury
Ìfúnlọ́rúkọ
Ìpolongo /ˈmɜrkjəri/  (Speaker Icon.svg listen)
Alápèjúwe Mercurian, Mercurial[1]
Àsìkò J2000
Aphelion 69,816,900 km
0.466 697 AU
Perihelion 46,001,200 km
0.307 499 AU
Semi-major axis 57,909,100 km
0.387 098 AU
Eccentricity 0.205 630[3]
Àsìkò ìgbàyípo 87.969 1 d
(0.240 846 a)
0.5 Mercury solar day
Synodic period 115.88 d[3]
Average orbital speed 47.87 km/s[3]
Mean anomaly 174.796°
Inclination 7.005° to Ecliptic
3.38° to Sun’s equator
6.34° to Invariable plane[4]
Longitude of ascending node 48.331°
Argument of perihelion 29.124°
Satellites None
Àwọn ìhùwà àdánidá
Iyeìdáméjì ìfẹ̀kiri 2,439.7 ± 1.0 km[5][6]
0.3829 Earths
Flattening 0[6]
Ààlà ojúde 7.48 × 107 km²[5]
0.147 Earths
Ìpọ̀sí 6.083 × 1010 km³[5]
0.056 Earths
Àkójọ 3.3022 × 1023 kg[5]
0.055 Earths
Iyeìdáméjì ìṣùpọ̀ 5.427 g/cm³[5]
Equatorial surface gravity 3.7 m/s²
0.38 g[5]
Escape velocity 4.25 km/s[5]
Sidereal rotation
period
58.646 day
1407.5 h[5]
Equatorial rotation velocity 10.892 km/h (3.026 m/s)
Axial tilt 2.11′ ± 0.1′[7]
North pole right ascension 18 h 44 min 2 s
281.01°[3]
North pole declination 61.45°[3]
Albedo 0.119 (bond)
0.106 (geom.)[3]
Ìgbónásí ojúde
   0°N, 0°W
   85°N, 0°W
min mean max
100 K 340 K 700 K
80 K 200 K 380 K
Apparent magnitude −2.3 to 5.7[8][3]
Angular diameter 4.5" – 13"[3]
Afẹ́fẹ́àyíká
Ìfúnpá ojúde trace
Ìkósínú 42% Molecular oxygen
29.0% sodium
22.0% hydrogen
6.0% helium
0.5% potassium
Trace amounts of argon, nitrogen, carbon dioxide, water vapor, xenon, krypton, & neon[3]

Mẹ́rkúríù ni planeti to sunmojulo si Orun ninu Sistemu Orun, o unyipo Orun ni ekan ni 87.969 ojo Aye.




Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. "mercurial". Merriam-Webster Online. http://www.merriam-webster.com/dictionary/mercurial. Retrieved 2008-06-12. 
  2. Yeomans, Donald K. (April 7, 2008). "HORIZONS System". NASA JPL. http://ssd.jpl.nasa.gov/?horizons. Retrieved 2008-04-07. 
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 "Mercury Fact Sheet". NASA Goddard Space Flight Center. November 30, 2007. http://nssdc.gsfc.nasa.gov/planetary/factsheet/mercuryfact.html. Retrieved 2008-05-28. 
  4. "The MeanPlane (Invariable plane) of the Solar System passing through the barycenter". 2009-04-03. Archived from the original on 2009-04-20. http://web.archive.org/20090420194536/home.comcast.net/~kpheider/MeanPlane.gif. Retrieved 2009-04-03.  (produced with Solex 10 written by Aldo Vitagliano; see also Invariable plane)
  5. 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Munsell, Kirk; Smith, Harman; Harvey, Samantha (May 28, 2009). "Mercury: Facts & Figures". Solar System Exploration. NASA. http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mercury&Display=Facts. Retrieved 2008-04-07. 
  6. 6.0 6.1 Seidelmann, P. Kenneth; Archinal, B. A.; A’hearn, M. F.; et al. (2007). "Report of the IAU/IAGWorking Group on cartographic coordinates and rotational elements: 2006". Celestial Mechanics and Dynamical Astronomy 90: 155–180. doi:10.1007/s10569-007-9072-y. http://adsabs.harvard.edu/doi/10.1007/s10569-007-9072-y. Retrieved 2007-08-28. 
  7. Margot, L.J.; Peale, S. J.; Jurgens, R. F.; Slade, M. A.; Holin, I. V. (2007). "Large Longitude Libration of Mercury Reveals a Molten Core". Science 316: 710–714. doi:10.1126/science.1140514. PMID 17478713. http://adsabs.harvard.edu/abs/2007Sci...316..710M. 
  8. Cite error: Invalid <ref> tag; no text was provided for refs named ephemeris