Table 2.
Numbers of penumbral grains (PGs) in classes −1, 0, 1.
| PGs | Data | Parameters | #PGs in class | ||||
|---|---|---|---|---|---|---|---|
| type | set | l | d | Total | −1 | 0 | 1 |
| INW | 1 | 0 80 |
0 56 |
102 | 25 | 27 | 50 |
| 2 | 0 64 |
0 40 |
113 | 22 | 42 | 49 | |
| 3 | 0 59 |
0 47 |
97 | 24 | 39 | 34 | |
| 4 | 0 54 |
0 47 |
52 | 14 | 18 | 20 | |
| 5 | 0 54 |
0 47 |
80 | 12 | 29 | 39 | |
| All | – | – | 444 | 97 | 155 | 192 | |
| OUT | 1 | 0 80 |
0 56 |
90 | 48 | 21 | 21 |
| 2 | 0 64 |
0 48 |
48 | 25 | 14 | 9 | |
| 3 | 0 59 |
0 47 |
63 | 30 | 22 | 11 | |
| 4 | 0 54 |
0 47 |
24 | 13 | 8 | 3 | |
| 5 | 0 54 |
0 47 |
44 | 20 | 18 | 6 | |
| All | – | – | 269 | 136 | 83 | 50 | |
Notes. INW – inward-moving PGs; OUT – outward-moving PGs; l – length of a line segment representing a PG, along which the mean inclination, γPG, is measured; d – distance from a PG, at which the mean surrounding inclination, γs, is measured. Class −1: γPG < γs; class 0: unsolved cases; class 1: γPG > γs.
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