Mearcar (planaid)

O Uicipeid
(Air ath-sheòladh o Mearcair)
Gearr leum gu: seòladh, lorg
Airson seaghan eile, faic Mearcar (soilleireachadh).
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 a' chuir reultaich 58.646 là
1407.5 uair[4]
Luaths cuir 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. (7mh dhen Ghiblean 2008): “HORIZONS Web-Interface for Mercury Major Body”. JPL Horizons On-Line Ephemeris System. Air a thogail 7mh dhen Ghiblean 2008. – 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. (30mh dhen t-Samhain 2008): “Mercury Fact Sheet”. NASA. Air a thogail 28mh dhen Chèitean 2008.
  3. The MeanPlane (Invariable plane) of the Solar System passing through the barycenter”. Air a thogail 3s dhen Ghiblean 2009. (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 (28mh dhen Chèitean 2009): “Mercury: Facts & Figures”. Solar System Exploration. NASA. Air a thogail 7mh dhen Ghiblean 2008.
  5. 5.0 5.1 Seidelmann, P. Kenneth, Archinal, Brent A.; A'Hearn, Michael F.; Conrad, Albert R.; Consolmagno, Guy J.; Hestroffer, Daniel; Hilton, James L.; Krasinsky, Georgij A.; Neumann, Gregory A.; Oberst, Jürgen; Stooke, Philip J.; Tedesco, Edward F.; Tholen, David J.; Thomas, Peter C.; Williams, Iwan P. (2007): “Report of the IAU/IAG Working Group on cartographic coordinates and rotational elements: 2006,” ann an: Celestial Mechanics and Dynamical Astronomy, leabhar 98, àir. 3, td. 155–180. Bibcode: 2007CeMDA..98..155S. doi:10.1007/s10569-007-9072-y.
  6. Mazarico, Erwan, Genova, Antonio; Goossens, Sander; Lemoine, Frank G.; Neumann, Gregory A.; Zuber, Maria T.; Smith, David E.; Solomon, Sean C. (2014): “The gravity field, orientation, and ephemeris of Mercury from MESSENGER observations after three years in orbit,” ann an: Journal of Geophysical Research: Planets, leabhar 119, àir. 12, td. 2417–2436. ISSN 2169-9097. doi:10.1002/2014JE004675.
  7. 7.0 7.1 Margot, Jean-Luc, Peale, Stanton J.; Solomon, Sean C.; Hauck, Steven A.; Ghigo, Frank D.; Jurgens, Raymond F.; Yseboodt, Marie; Giorgini, Jon D.; Padovan, Sebastiano; Campbell, Donald B. (2012): “Mercury's moment of inertia from spin and gravity data,” ann an: Journal of Geophysical Research: Planets, leabhar 117, àir. E12. ISSN 0148-0227. Bibcode: 2012JGRE..117.0L09M. doi:10.1029/2012JE004161.
  8. 8.0 8.1 Mallama, A., Wang, D.; Howard, R.A. (2002): “Photometry of Mercury from SOHO/LASCO and Earth,” ann an: Icarus, leabhar 155, àir. 2, td. 253–264. Bibcode: 2002Icar..155..253M. doi:10.1006/icar.2001.6723.
  9. Mallama, A. (2011): “Planetary magnitudes,” ann an: Sky and Telescope, leabhar 121, àir. 1, td. 51–56.
  10. Espenak, Fred (25mh dhen Iuchar 1996): “Twelve Year Planetary Ephemeris: 1995–2006”. NASA Reference Publication 1349. NASA. Air a thogail 23mh dhen Chèitean 2008.
  11. 11.0 11.1 Vasavada, Ashwin R., Paige, David A.; Wood, Stephen E. (19mh dhen Ghearran 1999): “Near-Surface Temperatures on Mercury and the Moon and the Stability of Polar Ice Deposits,” ann an: Icarus, leabhar 141, àir. 2, td. 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. Air a thasglannadh [o http://nssdc.gsfc.nasa.gov/planetary/factsheet/mercuryfact.html] 6mh dhen t-Samhain 2015. Air a thogail 27mh dhen Fhaoilleach 2016.
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.