Daily Sunspot Evaluation
Observation Sheet Thursday, 29 September 1988
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)
- 8
- Number of spots (f)
- 72
- Relative number (R)
- 152
- Observer
- HE
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880929.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 4 | 28 | 55W | 317 | 56W | 7 | 237 |
| 2 | BAO – 2 | 23 | 52W | 314 | 53W | 6 | 239 |
| 3 | AX – 1 | 22 | 32W | 294 | 33W | - | 252 |
| 4 | AX – 1 | 17 | 31W | 293 | 32W | - | 253 |
| 5 | AX – 5 | 28 | 11W | 273 | 12W | 2 | 254 |
| 6 | EAC – 37 | 19 | 06E | 256 | 05E | 16 | 247 |
| 7 | AX – 1 | 25 | 12E | 250 | 11E | - | 255 |
| 8 | EKC – 21 | -25 | 49E | 217 ⚠ | 44E | 12 | 249 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.