# Surya

Matahari | Surya |
| --- |
| Poto ring sunar kacingak manut saking filter surya ring warsa 2013 sané wénten titik surya miwah limb darkening. |
| False-color potret kapotret ring warsa 2010 sané anggén cahaya ultraviolet (gelombang cahaya 30.4 nm) |
| Data observasi |
| Mean distance from Earth | 1 au ≈ 7011149600000000000♠1.496×108 km 8 min 19 s at light speed |
| Visual brightness (*V*) | −26.74 |
| Absolute magnitude | 4.83 |
| Spectral classification | G2V |
| Metallicity | *Z* = 0.0122 |
| Angular size | 31.6–32.7 minutes of arc |
| Adjectives | Solar |
| 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 (relative to the cosmic microwave background) |
| Physical characteristics |
| Equatorial radius | 695,700 km, 696,342 km 7002109000000000000♠109 × Earth |
| Equatorial circumference | 7009437900000000000♠4.379×106 km 109 × Earth |
| Flattening | 6994900000000000000♠9×10−6 |
| Area permukaan | 7018609000000000000♠6.09×1012 km2 7004120000000000000♠12,000 × Earth |
| Volume | 7027141000000000000♠1.41×1018 km3 7006130000000000000♠1,300,000 × Earth |
| Massa | 7030198840000000000♠1.9884×1030 kg 7005333000000000000♠333,000 × Earth |
| Average density | 7003140800000000000♠1.408 g/cm3 6999255000000000000♠0.255 × Earth |
| Center density (modeled) | 7005162200000000000♠162.2 g/cm3 7001124000000000000♠12.4 × Earth |
| Equatorial surface gravity | 7002274000000000000♠274 m/s2 28 × Earth |
| Moment of inertia factor | 6998700000000000000♠0.070 (estimate) |
| Escape velocity (from the surface) | 7005617700000000000♠617.7 km/s 55 × Earth |
| Suhu | Center (modeled): 7007157000000000000♠1.57×107 K Photosphere (effective): 7003577200000000000♠5,772 K Corona: ≈ 7006500000000000000♠5×106 K |
| Luminosity (Lsol) | 7026382800000000000♠3.828×1026 W ≈ 7028375000000000000♠3.75×1028 lm ≈ 7001980000000000000♠98 lm/W efficacy |
| Color (B-V) | 0.63 |
| Mean radiance (Isol) | 7007200900000000000♠2.009×107 W·m−2·sr−1 |
| Age | ≈ 4.6 billion years |
| Karakteristik rotasi |
| Obliquity | 7.25° (to the ecliptic) 67.23° (to the galactic plane) |
| Right ascension of North pole | 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 |
| (at 16° latitude) | 25.38 d 25 d 9 h 7 min 12 s |
| (ring kutub) | 34.4 d |
| Kecepatan rotasi (ring ekuator) | 7003199694444444444♠7.189×103 km/h |
| Komposisi Photospheric (manut massa) |
| Hidrogén | 73.46% |
| Hélium | 24.85% |
| Oksigén | 0.77% |
| Karbon | 0.29% |
| Wesi | 0.16% |
| Néon | 0.12% |
| Nitrogén | 0.09% |
| Silikon | 0.07% |
| Magnésium | 0.05% |
| Urirang | 0.04% |

**Surya** (simbol: ; Indonésia: *Matahari*, Inggris: *Sun*) ento bintang ané matongos di tengah tata surya, 1.496×108 km uli Gumi. Gobanné bunter tur bentangné 1.392.684 km, kuang-lebih ping 109 bentang Guminé. Massané kuang-lebih 2×1030 kilogram, 330.000 ping massa Guminé. Surya malakar aji campuhan ané maadan "plasma" ané malakar aji hidrogén (73%), hélium (25%), ajak oksigén, karbon, néon muah besi abedik.

## Pustaka