Daily Sunspot Evaluation
Observation Sheet Friday, 27 September 1968
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)
- 11
- Number of spots (f)
- 105
- Relative number (R)
- 215
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680927.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 16 | 12 | 15°E | 242 | |||
| 2 | H – 9 | 13 | 30°E | 197 | |||
| 3 | H – 7 | -17 | 47°E | 180 | |||
| 4 | A – 1 | -14 | 03°E | 218 | |||
| 5 | A – 1 | -17 | 33°W | 260 | |||
| 6 | J – 1 | 20 | 70°W | 297 | |||
| 7 | D – 26 | 17 | 25°W | 252 | |||
| 8 | C – 5 | 22 | 72°W | 299 | |||
| 9 | C – 19 | 14 | 14°W | 241 | |||
| 10 | B – 14 | 11 | 02°W | 229 | |||
| 11 | H – 6 | 17 | 03°W | 230 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.