Mearcar (planaid)

O Uicipeid
(Air ath-sheòladh o Mearcair)
Gearr leum gu: seòladh, lorg
Airson seaghan eile, faic Mearcar (soillearachadh).
Mearcar Mercury symbol.svg
Mercury in color - Prockter07.jpg
Dealbh dathach a thog am fànas-sgrùdaire MESSENGER air Mearcar a' chiad turas a chaidh e seachad air 2008 (NASA).
Feartan na cuairte (Ceann-aimsir J2000) [1]
Aphelion 0.466 697 AU
69,816,900 km
Perihelion 0.307 499 AU
46,001,200 km
Aiseal dàrnach 0.387 098 AU
57,909,050 km
Neo-mheadhanachd 0.205 630[2]
Ùine na cuairte 87.969 1 là
0.240 846 bliadhna Iulianach
0.5 là grèine Mearcair
Ùine co-nasgach 115.88 d[2]
Luaths cuibheasach na reul-cuairte 47.362 km/s[2]
Neo-choitcheannachd meadhain 174.796°
Claonadh 7.005° an coimeas na h-èicliptich
3.38° an coimeas crios-meadhain na Grèine

6.34° an coimeas plèana neo-chaochlaideach[3]

Domhan-fhad an nòd-dìridh 48.331°
Argamaid a' perihelion 29.124°
Saidealan air a bheil sinn eòlach Chan eil saideal aige
Feartan fiosaigeach
Rèideas meadhain 2,439.7±1.0 km
0.3829 uiread dhen Talamh[4][5]
Leathnachadh 0[5]
Farsaingeachd an uachdair 7.48 × 107 km2
0.147 uiread dhen Talamh[4]
Tomhas lìonaidh 6.083 × 1010 km3
0.056 uiread dhen Talamh[4]
Tomad 3.3011 × 1023 kg
0.055 uiread dhen Talamh[6]
Dùmhlachd meadhain 5.427 g/cm3[4]
Iom-tharraing air an uachdair 3.7 m/s2
0.38 g[4]
Factar na mòmaid tàmhachd 0.346±0.014[7]
Luaths teichidh 4.25 km/s[4]
Ùine na cuairte reultaich 58.646 là
1407.5 uair[4]
Luaths cuairteachaidh an reul-chriosa 10.892 km/h (3.026 m/s)
Claonadh an aiseil 2.04′ ± 0.08′ an coimeas na reul-cuairte[7]
(0.034°)[2]
Dìreadh deas a' phòla a tuath 18u 44m 2d
281.01°[2]
Dì-chlaonadh a' phòla a tuath 61.45°[2]
Albedo 0.068 (Bond)[8]
0.142 (geomatrach)[8]
Meudachd lèirsinneach −2.6[9] gu 5.7[2][10]
Trast-thomhas ceàrnach 4.5–13″[2]
Teothachd 0° T, 0° I[11]
  • As ìsle: 100 K
  • Meadhain: 340 K
  • As àirde: 700 K

85° T, 0° I[11]

  • As ìsle: 80 K
  • Meadhain: 200 K
  • As àirde: 380 K
Àile [12]
Brùthadh-àile air an uachdar lorg (<~0.005 piceo-bhàr)
Stuthan Gasan:


S' e a' chiad phlanaid a tha ann am Mearcair (Beurla: Mercury). Tha e tioram le aile glè thana, agus bidh na laithean aige gu math fada, uime sin, a tha aon taobh uabhasach teth, agus an taobh eile uabhasach fuar agus dorch. Chan eil fadag aige.

S' e am planaid as lugha le cuairt den 88 làithean aige.

Tha an teòthachd air uachdar air a' dol eadar −180 agus 430 °C.

Iomraidhean[deasaich | deasaich an tùs]

  1. Yeomans, Donald K. (2008-04-07). "HORIZONS Web-Interface for Mercury Major Body". JPL Horizons On-Line Ephemeris System. Air a thogail 2008-04-07. – Tagh "Ephemeris Type: Orbital Elements", "Time Span: 2000-01-01 12:00 to 2000-01-02". (Bu chòir dha "Target Body: Mercury" agus "Center: Sun" a bhith 'nam bun-roghainnean.) 'S e luachan na reul-cuairte pògaidh sa bhad air ceann-aimsir J2000 pongail a tha sna toraidhean.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Williams, Dr. David R. (2008-11-30). "Mercury Fact Sheet". NASA. Air a thogail 2008-05-28.
  3. "The MeanPlane (Invariable plane) of the Solar System passing through the barycenter" (2009-04-03). Air a thogail 2009-04-03. (chaidh a dhèanamh le Solex 10 air a sgrìobhadh le Aldo Vitagliano)
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Munsell, Kirk (2009-05-28). "Mercury: Facts & Figures". Solar System Exploration. NASA. Air a thogail 2008-04-07.
  5. 5.0 5.1 P. Kenneth Seidelmann, Brent A. Archinal, Michael F. A'Hearn, Albert R. Conrad, Guy J. Consolmagno, Daniel Hestroffer, James L. Hilton, Georgij A. Krasinsky, Gregory A. Neumann, Jürgen Oberst, Philip J. Stooke, Edward F. Tedesco, David J. Tholen, Peter C. Thomas, Iwan P. Williams: Report of the IAU/IAG Working Group on cartographic coordinates and rotational elements: 2006. Ann an: Celestial Mechanics and Dynamical Astronomy. 98, Àir. 3, S. 155–180. Bibcode: 2007CeMDA..98..155S. doi:10.1007/s10569-007-9072-y.
  6. Erwan Mazarico, Antonio Genova, Sander Goossens, Frank G. Lemoine, Gregory A. Neumann, Maria T. Zuber, David E. Smith, Sean C. Solomon: The gravity field, orientation, and ephemeris of Mercury from MESSENGER observations after three years in orbit. Ann an: Journal of Geophysical Research: Planets. 119, Àir. 12, ISSN 2169-9097, S. 2417–2436. doi:10.1002/2014JE004675.
  7. 7.0 7.1 Jean-Luc Margot, Stanton J. Peale, Sean C. Solomon, Steven A. Hauck, Frank D. Ghigo, Raymond F. Jurgens, Marie Yseboodt, Jon D. Giorgini, Sebastiano Padovan, Donald B. CampbellMercury's moment of inertia from spin and gravity data. Ann an: Journal of Geophysical Research: Planets. 117, Àir. E12, 2012, ISSN 0148-0227. Bibcode: 2012JGRE..117.0L09M. doi:10.1029/2012JE004161.
  8. 8.0 8.1 Mallama, A., D. Wang, R.A. Howard: Photometry of Mercury from SOHO/LASCO and Earth. Ann an: Icarus. 155, Àir. 2, 2002, S. 253–264. Bibcode: 2002Icar..155..253M. doi:10.1006/icar.2001.6723.
  9. Mallama, A.: Planetary magnitudes. Ann an: Sky and Telescope. 121, Àir. 1, 2011, S. 51–56.
  10. Espenak, Fred (July 25, 1996). "Twelve Year Planetary Ephemeris: 1995–2006". NASA Reference Publication 1349. NASA. Air a thogail 2008-05-23.
  11. 11.0 11.1 Ashwin R. Vasavada, David A. Paige, Stephen E. WoodNear-Surface Temperatures on Mercury and the Moon and the Stability of Polar Ice Deposits. Ann an: Icarus. 141, Àir. 2, 19 February 1999, S. 179–193. Figure 3 with the "TWO model"; Figure 5 for pole. Bibcode: 1999Icar..141..179V. doi:10.1006/icar.1999.6175.
  12. "Mercury Fact Sheet". NASA (2015-12-22). Air a thasglannadh [o http://nssdc.gsfc.nasa.gov/planetary/factsheet/mercuryfact.html] 2015-11-6. Air a thogail 2016-01-27.
deasaich An Crios-Grèine
Solar system.png
Planaidean: Mearcar - An Rìbhinn/Bhèineas - An Talamh (A' Ghealach*) - An Corg/Màrs - Am Bliogh/Iupatar - Satarn - Ùranas - Neaptun
Fo-phlanaidean: Plùto - Sedna - Ceres - Eris - Makemake - Haumea
Eile: Grian - Crios Reultan Seachrain - Reultan earballach - Crios Kuiper - Diosg Sgapte - Neul Oort - 2003 UB313
Faic cuideachd nithean reul-eòlasach agus liosta nan nithean ann an Crios-Grèine a-rèir rèideis no tomaid.
Chan e planaid a th' anns A' Ghealach ach saideal ann an reul-eòlas seach anns an t-siostam Ptolemy.