Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 April 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)
- 6
- Number of spots (f)
- 61
- Relative number (R)
- 121
- Observer
- HM
- Reading
- all checks consistent
- File
- 19820428.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKI – 20 | 20 | 45W | 316 | 48W | 12.5 | 177 |
| 2 | HSX – 1 | 5 | 43W | 314 | 46W | 1.5 | 172 |
| 3 | EKI – 17 | 13 | 42W | 313 | 45W | 14 | 171 |
| 4 | DSI – 14 | 23 | 21W | 292 | 24W | 10.5 | 176 |
| 5 | HSX – 1 | -12 | 62W | 333 | 65W | 2 | 174 |
| 6 | CAI – 8 | -19 | 56E | 215 | 52E | 8 | 183 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.