Daily Sunspot Evaluation
Observation Sheet Wednesday, 31 March 1982
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)
- 10
- Number of spots (f)
- 48
- Relative number (R)
- 148
- Observer
- HM
- Reading
- all checks consistent
- File
- 19820331.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKI – 25 | 12 | 32W | 312 | 34W | 135 | 127 |
| 2 | BXO – 3 | 20 | 33W | 313 | 35W | 3 | 128 |
| 3 | HAX – 3 | 18 | 12E | 268 | 10E | 1 | 131 |
| 4 | ? – 1 | -11 | 80W | 0 | 82W | - | 117 |
| 5 | DAO – 4 | -14 | 58W | 338 | 60W | 7 | 131 |
| 6 | HAX – 2 | -10 | 41W | 321 | 43W | 3 | 123 |
| 7 | DAO – 4 | -16 | 18W | 298 | 20W | 65 | 126 |
| 8 | AXX – 4 | -22 | 00 | 280 | 02W | 2 | 127 |
| 9 | HSX – 1 | -16 | 07E | 273 | 05E | 0.75 | 130 |
| 10 | AXX – 1 | -23 | 09E | 271 | 07E | - | 136 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.