ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ

ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ
	Imaged in enhanced color by MESSENGER in 2008
Designations
Pronunciation	/ˈmɜːrkjʊri/
Adjectives	Mercurian /mərˈkjʊəriən/,; Mercurial /mərˈkjʊəriəl/
Orbital characteristics
	Epoch J2000
Aphelion	0.466697 AU; 69,816,900 km;
Perihelion	0.307499 AU; 46,001,200 km;
Semi-major axis	0.387098 AU; 57,909,050 km;
Eccentricity	0.205630
Orbital period	87.9691 d; 0.240846 yr; 0.5 ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ solar day;
Synodic period	115.88 d
Average orbital speed	47.362 km/s
Mean anomaly	174.796°
Inclination	7.005° to ecliptic; 3.38° to Sun's equator; 6.34° to invariable plane;
Longitude of ascending node	48.331°
Argument of perihelion	29.124°
Satellites	None
Physical characteristics
Mean diameter	4880 km
Mean radius	2,439.7±1.0 km; 0.3829 Earths;
Flattening	0.0000 [᱑]
Surface area	7.48×107 km2; 0.147 Earths;
Volume	6.083×1010 km3; 0.056 Earths;
Mass	3.3011×1023 kg; 0.055 Earths;
Mean density	5.427 g/cm3
Surface gravity	3.7 m/s2; 0.38 g;
Moment of inertia factor	0.346±0.014
Escape velocity	4.25 km/s
Sidereal rotation period	58.646 d; 1407.5 h;
Equatorial rotation velocity	10.892 km/h (3.026 m/s)
Axial tilt	2.04′ ± 0.08′ (to orbit); (0.034°)
North pole right ascension	ᱪᱷᱟᱸᱪ:RA; 281.01°;
North pole declination	61.45°
Albedo	0.088 (Bond); 0.142 (geom.);
Apparent magnitude	−2.48 to +7.25
Angular diameter	4.5–13″
Atmosphere
Surface pressure	trace (≲ 0.5 nPa)
Composition by volume	atomic oxygen; sodium; magnesium; atomic hydrogen; potassium; calcium; helium; Trace amounts of iron, aluminium, argon, dinitrogen, dioxygen, carbon dioxide, water vapor, xenon, krypton, and neon;

ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ ᱫᱚ ᱡᱚᱛᱚ ᱠᱷᱚᱱ ᱠᱟᱹᱴᱤᱡ ᱟᱨ ᱵᱷᱤᱛᱨᱤ ᱨᱮ ᱢᱮᱱᱟᱜ ᱫᱚᱨᱮᱱ ᱤᱯᱤᱞ ᱠᱟᱱᱟᱭ ᱾ ᱱᱚᱶᱟ ᱥᱤᱧ ᱪᱟᱸᱫᱚ ᱴᱷᱮᱱ ᱜᱩᱞᱟᱹᱭ ᱛᱮ ᱟᱹᱪᱩᱨᱚᱜ ᱠᱟᱱᱟᱭ ᱾ ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ ᱫᱚ ᱘᱗.᱙᱗ ᱫᱤᱱ ᱮ ᱞᱟᱜᱟᱣᱟᱭᱟ, ᱚᱠᱟ ᱫᱚ ᱡᱚᱛᱚ ᱮᱸᱜᱮᱞ ᱠᱷᱚᱱ ᱫᱚ ᱟᱹᱰᱤ ᱦᱩᱰᱤᱧ ᱜᱮᱭᱟ ᱾ ᱱᱚᱶᱟ ᱤᱯᱤᱞ ᱫᱚ ᱤᱝᱨᱟᱡᱤ ᱯᱟᱹᱨᱥᱤ ᱛᱮ ᱢᱟᱹᱨᱠᱭᱩᱨᱤ ᱠᱚ ᱢᱮᱛᱟᱜᱼᱟ, ᱢᱟᱹᱨᱠᱭᱩᱨᱤ ᱫᱚ ᱨᱚᱢᱟᱱ ᱵᱚᱝᱜᱟ ᱧᱩᱛᱩᱢ ᱨᱮ ᱯᱟᱲᱟᱣ ᱠᱟᱱᱟ ᱾ ᱩᱱᱤ ᱫᱚ ᱵᱚᱝᱜᱟᱤᱡ ᱜᱚᱲᱮᱛ ᱢᱮᱱᱛᱮ ᱠᱚ ᱢᱮᱱᱟ ᱾ ᱪᱤᱱᱦᱟᱹ: ᱾

ᱵᱷᱤᱛᱨᱤ ᱰᱷᱟᱸᱪᱟ

ᱮᱞᱟᱝ ᱥᱮᱸᱜᱮᱞ ᱴᱷᱮᱱ ᱠᱮᱴᱮᱡ ᱥᱤᱞᱤᱠᱮᱴ ᱟᱴᱟᱞ ᱢᱮᱱᱟᱜᱼᱟ^[᱑᱖]^[᱑᱗] ᱟᱨ ᱟᱡᱟᱜ ᱢᱮᱱᱴᱟᱞ ᱨᱮ ᱫᱚ ᱟᱭᱨᱚᱱ ᱥᱟᱹᱯᱷᱭᱤᱰ ᱢᱮᱱᱟᱜᱼᱟ ᱾ ᱚᱱᱟ ᱤᱯᱤᱞ ᱨᱮᱭᱟᱜ ᱟᱹᱰᱤ ᱵᱷᱤᱛᱨᱤ ᱨᱮ ᱛᱚᱨᱚᱞ ᱡᱤᱱᱤᱥ ᱠᱚ ᱮᱢᱟᱱ ᱢᱮᱱᱟᱜᱼᱟ ᱟᱨ ᱢᱤᱫᱴᱟᱹᱝ ᱵᱷᱤᱛᱨᱤ ᱠᱮᱴᱮᱡ ᱟᱴᱟᱞ ᱢᱮᱱᱟᱜᱼᱟ ᱾

ᱛᱩᱠᱱᱟᱹ

Size comparison with other Solar System objects

ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ, ᱫᱷᱟᱹᱨᱛᱤ

ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ, ᱢᱟᱨᱥᱟᱞ ᱮᱸᱜᱮᱞ, ᱫᱷᱟᱹᱨᱛᱤ, ᱴᱤᱨᱟᱹ ᱮᱸᱜᱮᱞ

Back row: ᱴᱤᱨᱟᱹ ᱮᱸᱜᱮᱞ, ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ
Front: ᱪᱟᱸᱫᱚ, ᱡᱚᱢᱨᱟᱡᱟ ᱮᱸᱜᱮᱞ, Haumea

ᱥᱟᱹᱠᱷᱭᱟᱹᱛ

↑ ᱪᱷᱟᱸᱪ:Lexico
↑ ᱪᱷᱟᱸᱪ:Lexico
↑ ^᱓.᱐ ^᱓.᱑ ^᱓.᱒ ^᱓.᱓ ^᱓.᱔ ^᱓.᱕ ^᱓.᱖ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named fact
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named meanplane
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named horizons
↑ ^᱖.᱐ ^᱖.᱑ ^᱖.᱒ ^᱖.᱓ ^᱖.᱔ ^᱖.᱕ ^᱖.᱖ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named nasa
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named Seidelmann2007
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named Mazarico2014
↑ ^᱙.᱐ ^᱙.᱑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named Margot2012
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named Mallama
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named MallamaMercury
↑ ^᱑᱒.᱐ ^᱑᱒.᱑ Vasavada, Ashwin R.; Paige, David A.; Wood, Stephen E. (February 19, 1999). "Near-Surface Temperatures on Mercury and the Moon and the Stability of Polar Ice Deposits" (PDF). Icarus. 141 (2): 179–193. Bibcode:1999Icar..141..179V. doi:10.1006/icar.1999.6175. Figure 3 with the "TWO model"; Figure 5 for pole.
↑ ᱛᱩᱢᱟᱹᱞ ᱦᱩᱲᱟᱹᱜ:Invalid <ref> tag; no text was provided for refs named Mallama_and_Hilton
↑ "Mercury Fact Sheet". NASA. December 22, 2015. Archived from the original on November 6, 2015. Retrieved January 27, 2016.
↑ "ᱮᱞᱟᱝ ᱮᱸᱜᱮᱞ – The-atmosphere". Encyclopædia Britannica.
↑ Talbert, Tricia, ed. (March 21, 2012). "MESSENGER Provides New Look at Mercury's Surprising Core and Landscape Curiosities". NASA. Archived from the original on January 12, 2019. Retrieved July 16, 2020.
↑ "Scientists find evidence Mercury has a solid inner core". AGU Newsroom (in ᱟᱢᱮᱨᱤᱠᱟᱱ ᱟᱝᱜᱽᱨᱮᱡᱤ). Retrieved 2019-04-17.