Daily Sunspot Evaluation
Observation Sheet Friday, 13 March 1992
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 16
- Number of spots (f)
- 56
- Relative number (R)
- 216
- Observer
- TÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920313.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 16 | 64W | 240 ⚠ | 66W | - | 153 |
| 2 | AX – 2 | 14 | 46W | 228 | 48W | 2 | 112 |
| 3 | BXO – 4 | 0 | 18W | 200 | 20W | 2 | 132 |
| 4 | HS – 3 | 14 | 03W | 185 | 05W | 2 | 117 |
| 5 | AX – 2 | 19 | 50E | 132 | 48E | 1 | 128 |
| 6 | BXO – 4 | -5 | 56W | 238 | 58W | 4 | 113 |
| 7 | HA – 1 | -38 | 55W | 237 | 57W | - | 120 |
| 8 | CAO – 12 | -11 | 14W | 196 | 16W | 8 | 118 |
| 9 | AX – 1 | -25 | 05W | 187 | 07W | - | 131 |
| 10 | BXO – 4 | -24 | 00 | 182 | 02W | 5 | 116 |
| 11 | AX – 1 | -12 | 05E | 177 | 03E | - | 130 |
| 12 | AX – 2 | -24 | 16E | 166 | 14E | 2 | 120 |
| 13 | HA – 2 | -14 | 35E | 147 | 33E | 2 | 125 |
| 14 | HA – 2 | -17 | 41E | 137 ⚠ | 41E | 5 | 124 |
| 15 | CAO – 13 | -26 | 49E | 133 | 47E | 15 | 125 |
| 16 | BXO – 2 | -16 | 58E | 124 | 56E | 3.5 | 127 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.