Qorax
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Qorax (Af Ingiriis : Sun; Af Carabi : ar) sidoo kale loo yaqaano Cadceed, waa shey wayn oo ka samaysan neefo ololaya. Sidoo kale qoraxdu waa Xidigta aya nolosha aduunku ku tiirsan tahay. Iyada iyo mereereyaasha waxaa la isku yidhaahdaa Bahda Midaysay Qoraxdu. Aduunka iyo mereereyaasha kale waxeey ku wareegtaan Qoraxda, waxeena la wareegtaan waxyaabo baraf ah iyo boorka hawada, ayaga oo 99,8% buuxiya weeninka iskujoogga qoraxda. Qoraxda waxee keentaa awood (Enargy), gaar ahaan ileys, taasi oo ugu wacan Nolosha aduunka oo dhan. Qoraxda waxee xakuntaa xaraaradaha aduunka iyo jawiga, waxeena u dhigantahay 1/3 Waqtiga Biyaha badtaan dhinaca badda, inta kale waxaa xakumo Bisha.
Quick Facts Caddeymaha, Fogaanta ay u jirto Dhulka ...
Caddeymaha | |
---|---|
Fogaanta ay u jirto Dhulka | 1 au ≈ 7011149600000000000♠1.496×108 km 8 daqiiqo 19 sekin ee xawaare ileys |
Laxaad muuqda (V) | −26.74[1] |
Laxaad sugan | 4.83[1] |
Abla-ablayn jeegaan | G2V[2] |
Bir (falag) | Z = 0.0122[3] |
Jimidh xagaleed | 31.6–32.7 Daqiiqadaha qaansada[4] |
Magac u yeel | Cadceed |
Orbital characteristics | |
Mean distance from Milky Way core | ≈ 7020270000000000000♠2.7×1017 km 7004272000000000000♠27,200 light-years |
Galactic period | (2.25–2.50)×108 yr |
Velocity | ≈ 7005220000000000000♠220 km/s (orbit around the center of the Milky Way) ≈ 7004200000000000000♠20 km/s (relative to average velocity of other stars in stellar neighborhood) ≈ 7005370000000000000♠370 km/s[5] (relative to the cosmic microwave background) |
Physical characteristics | |
Equatorial radius | 695,700 km[6] 109 × Earth[7] |
Equatorial circumference | 7009437900000000000♠4.379×106 km[7] 109 × Earth[7] |
Flattening | 6994900000000000000♠9×10−6 |
Surface area | 7018609000000000000♠6.09×1012 km2[7] 7004120000000000000♠12,000 × Earth[7] |
Volume | 7027141000000000000♠1.41×1018 km3[7] 7006130000000000000♠1,300,000 × Earth |
Jir | 7030198855000000000♠(1.98855±0.00025)×1030 kg[1] 7005333000000000000♠333,000 × Earth[1] |
Average density | 7003140800000000000♠1.408 g/cm3[1][7][8] 6999255000000000000♠0.255 × Earth[1][7] |
Center density (modeled) | 7005162200000000000♠162.2 g/cm3[1] 7001124000000000000♠12.4 × Earth |
Equatorial surface gravity | 7002274000000000000♠274.0 m/s2[1] 7001279400000000000♠27.94 g 7004275422900000000♠27,542.29 cgs 28 × Earth[7] |
Escape velocity (from the surface) | 7005617700000000000♠617.7 km/s[7] 55 × Earth[7] |
Temperature | Center (modeled): 7007157000000000000♠1.57×107 K[1] Photosphere (effective): 7003577200000000000♠5,772 K[1] Corona: ≈ 7006500000000000000♠5×106 K |
Luminosity (Lsol) | 7026382800000000000♠3.828×1026 W[1] ≈ 7028375000000000000♠3.75×1028 lm ≈ 7001980000000000000♠98 lm/W efficacy |
Mean radiance (Isol) | 7007200900000000000♠2.009×107 W·m−2·sr−1 |
Age | ≈ 4.6 billion years[9][10] |
Rotation characteristics | |
Obliquity | 7.25°[1] (to the ecliptic) 67.23° (to the galactic plane) |
Right ascension of North pole[11] | 286.13° 19 h 4 min 30 s |
Declination of North pole | +63.87° 63° 52' North |
Sidereal rotation period (at equator) | 25.05 d[1] |
(at 16° latitude) | 25.38 d[1] 25 d 9 h 7 min 12 s[11] |
(at poles) | 34.4 d[1] |
Rotation velocity (at equator) | 7003199694444444444♠7.189×103 km/h[7] |
Photospheric composition (by mass) | |
Hydrogen | 73.46%[12] |
Helium | 24.85% |
Oxygen | 0.77% |
Carbon | 0.29% |
Iron | 0.16% |
Neon | 0.12% |
Nitrogen | 0.09% |
Silicon | 0.07% |
Magnesium | 0.05% |
Sulfur | 0.04% |
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