| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 39 | 304 | 21 | 167 | -19.22 | 104.55 | 20.27 | 233.55 | 0.4078 | |
|
previous
or next day for the same group /
back to the solar disc Debrecen 2000-04-13 12:08:09 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 17 | 274 | 9 | 149 | -18.99 | 105.57 | 21.28 | 235.44 | 0.4184 | |
| 0 | 3 | 0 | 2 | -18.16 | 104.87 | 20.58 | 236.41 | 0.4026 | |
| 20 | -1 | 11 | -1 | -19.24 | 104.65 | 20.36 | 233.85 | 0.4086 | |
| 0 | 2 | 0 | 1 | -19.52 | 103.59 | 19.30 | 231.92 | 0.3975 | |
| 2 | 8 | 1 | 5 | -20.53 | 103.60 | 19.32 | 229.87 | 0.4069 | |
| 0 | 2 | 0 | 1 | -21.17 | 102.81 | 18.52 | 227.49 | 0.4035 | |
| 0 | 4 | 0 | 2 | -20.24 | 101.16 | 16.87 | 226.86 | 0.3748 | |
| 0 | 2 | 0 | 1 | -19.86 | 100.58 | 16.30 | 226.74 | 0.3640 | |
| 0 | 2 | 0 | 1 | -20.23 | 97.72 | 13.43 | 220.69 | 0.3358 | |
| 0 | 1 | 0 | 1 | -18.36 | 95.61 | 11.32 | 220.14 | 0.2904 | |
| 0 | 1 | 0 | 1 | -21.69 | 96.50 | 12.21 | 215.29 | 0.3416 | |
| 0 | 1 | 0 | 0 | -18.52 | 94.12 | 9.83 | 215.95 | 0.2771 | |
| 0 | 2 | 0 | 1 | -22.05 | 96.40 | 12.12 | 214.45 | 0.3455 | |
| 0 | 1 | 0 | 1 | -18.68 | 93.64 | 9.36 | 214.29 | 0.2747 | |
| 0 | 1 | 0 | 1 | -18.78 | 93.38 | 9.09 | 213.34 | 0.2735 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |