Daily Sunspot Evaluation
Observation Sheet Thursday, 24 May 1990
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)
- 9
- Number of spots (f)
- 136
- Relative number (R)
- 226
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19900524.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 13 | 36 | 74W | 315 | 77W | 12 | 202 |
| 2 | CAO – 4 | 18 | 27W | 268 | 30W | 4.5 | 217 |
| 3 | BRI – 27 | 8 | 25W | 266 | 28W | 13 | 209 |
| 4 | CAO – 5 | 26 | 21E | 220 | 18E | 4 | 213 |
| 5 | AX – 1 | 22 | 73E | 168 | 70E | - | 218 |
| 6 | FKC – 26 | -16 | 67W | 308 | 70W | 16 | 205 |
| 7 | EKI – 29 | -19 | 01W | 242 | 04W | 11 | 210 |
| 8 | AX – 1 | -30 | 02E | 239 | 01W | - | 219 |
| 9 | EKI – 30 | -12 | 06E | 235 | 03E | 10.5 | 216 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.