Hard to see cos of oscillations
0.05 km/s up
| Units | ||
| Measurement | m | '," | Earth/sun distance | 1.49e11 |
| Radius | 6.96e8 | 16' |
| Diameter | 1.38e9 | 32' |
| Granulation | 1.1 Mm | 1.5" |
| Mesogranulation | 3 - 10 Mm | 4-12" |
| Supergranulation | 15 - 30 Mm | 42" |
| 1' on sun | 43e6 | 1' |
| 1" on sun | 7.22e5 | 1" |
| 1Mm on sun | 1e6 | 1.38" |
| Thing | Time | Ref. |
| Rotation period (Equator)Siderial | 25 days? | |
| Rotation period (70+ degrees)Siderial | 33 days | |
| Granulation | 10-18 mins | Bray |
| Mesogranulation | 30min-6h | Rieutord M |
| Supergranulation | 24h+ | |
| Radius | 6.96e8 |
| Thing | Speed | Who? |
| Granulation Horizontal velocity (rms) | 2 km/s | Bray |
| Granulation Vertical velocity (rms) | 1 km/s | Bray |
| Supergranulation Horizontal velocity | 0.3-0.5 km/s (Bray) | See Shine (Sol. Phys 193 313-331 (2000) |
| Supergranulation Vertical velocity Hard to see cos of oscillations | 0.1-0.2 km/s down 0.05 km/s up | Bray |