Budhgrah

Budhgrah
	Budhgrah, sahii rang me, jiske MESSENGER; spacecraft 2008 me utaris hae
Designations
Adjectives	Mercurian /mərˈkjʊəriən/,; Mercurial /mərˈkjʊəriəl/
Symbol
Orbital characteristics
	Epoch J2000
Aphelion	0.466697 AU (69.82 million km)
Perihelion	0.307499 AU (46.00 million km)
Semi-major axis	0.387098 AU (57.91 million km)
Eccentricity	0.205630
Orbital period (sidereal)	87.9691 d; 0.240846 yr; 0.5 Mercury synodic days;
Orbital period (synodic)	115.88 d
Average orbital speed	47.36 km/s
Mean anomaly	174.796°
Inclination	7.005° to ecliptic; 3.38° to Sun's equator; 6.35° to invariable plane;
Longitude of ascending node	48.331°
Argument of perihelion	29.124°
Satellites	None
Physical characteristics
Mean radius	2,439.7±1.0 km; 0.3829 Earths;
Flattening	0.0009
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 g0)
Moment of inertia factor	0.346±0.014
Escape velocity	4.25 km/s
Synodic rotation period	176 d
Sidereal rotation period	58.646 d; 1407.5 h;
Equatorial rotation velocity	3.026 m/s
Axial tilt	2.04Template:Prime ± 0.08; (to orbit); (0.034°)
North pole right ascension	18h 44m 2s; 281.01° ;
North pole declination	61.41°
Albedo	0.088 (Bond); 0.142 (geom.);
Temperature	437 K (164 °C); (blackbody temperature)
Apparent magnitude	−2.48 to +7.25
Absolute magnitude (H)	−0.4
Angular diameter	4.5–13Template:Pprime
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, aur neon;

Budhgrah (pratiik: ; Mercury) uu planet hae jon Suraj ke sab se nachdik hae aur Saur mandal (Solar system) me sab se chhota hae. Ii planet jab dunia se dekha jaae hae tab ii bahut chatak dekhae hae, lekin jaada kar ke ii suraj ke bahut nachdik rahe hae aur dekhae nai hae.

Quick Facts Designations, Adjectives ...

Ii grah patthar ke banaa hae aur isme khaali kuchh atmosphere hae.Jab ki ii saur mandal ke sab se chhotaa grah hae, iske surface gravity Mars ke gravity se thorraa jaada hae. Budhgrah ke surface of Mercury dunia ke chandarma ke rakam hae, jisme dher cratar hae. Iske sab se barraa crater, Caloris Planitia, ke diameter 1,550 km (960 mi) hae, jon grah ke diameter ke one-third the diameter, (4,880 km or 3,030 mi) ke one-third hae.

Budhgrah ke saal 88 dunia ke saal ke baraabar hae aur iske din dunia ke 58.65 din ke baraabar hae. Jiske matlab hae ki Budhgrah ke ek solar din lagbahg 176 dunia ke din ke baraabar hae. Iske matlab ii bhi hae ki Budhgrah ke ek bagal me 88 din talak din rahe hae aur fir 88 din talak raat rahe hae. Budhgrah me ek magnetic field bhi hae jisse uu solar wind ke deflect kare hae. Hian ke temperature bahut uppar-niche jaawe hae aur equator ke ilaaka me raat me −170 °C (−270 °F) aur din me 420 °C (790 °F) rahe hae. Iske azial tilt bahut kamtii hae jisse planet ke poles me sab time chhaain rahe hae aur ii biswas karaa jaae hae ki hian pe ice hoe sake hae.

Saur mandal ke aur grah ke rakam, Budhgrahlagbhag 4.5 billion saal pahile banaa rahaa. Iske mantle puura baraabar hae, jiske kaaran ii socha jaae hae ki Budhgrah ke uppar ek magma ke samundar rahaa. Abhi ke vigyanik ke anusaar, Budhgrah ke ek solid silicate crust hae, ek mantle hae jiske niche outer core hae, aur iske niche ek liquid ke core hae aur sab se bhittar ek solid core hae.

Budhgrah ke puraana jamaana se dekha jaae hae aur ii bhi samjhaa jaawat rahaa ki ii aur duusra taara ke rakam nai hae. Iske naam puraana Rome ke deotaa, Mercury se aais hae. Mariner 10 pahila spacecraft rahaa jon Budhgrah ke bagal se urr ke 1974 me gais rahaa.

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Budhgrah

Physical characteristics

Duusra panna

Duusra websites

References

Wikiwand - on