Sun
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
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距地球距离
0.9919 AU
148,388,702 km
光传播时间
8m 15s
按光速
Computed 2026-11-04 01:33 UTC · planets astronomy-engine (VSOP87) · comets JPL elements (two-body)
Physical data
- Mean radius
- 695,700 km
- Mass
- 1,988,400 × 10²⁴ kg
- Density
- 1,408 kg/m³
- Surface gravity
- 274 m/s²
- Escape velocity
- 617.6 km/s
- Rotation period
- 609.12 hours
- Luminosity
- 382.8 × 10²⁴ J/s
- Effective temperature
- 5,772 K
- Spectral type
- G2 V
Source:NASA Space Science Data Coordinated Archive · checked 2026-11-02 ↗
In everyday life
- Its diameter is about 109 times Earth's (radius 695,700 km ÷ Earth's 6,371 km).
- Sunlight takes about 8 minutes 19 seconds to reach Earth (1 AU ÷ speed of light).
- Surface temperature about 5,499 °C (5,772 K − 273.15) — water freezes at 0 °C and boils at 100 °C.