Daily Sunspot Evaluation
Observation Sheet Wednesday, 21 August 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)
- 7
- Number of spots (f)
- 59
- Relative number (R)
- 129
- Observer
- MÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19680821.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 27 | 10E | 346 | |||
| 2 | A – 1 | 7 | 66E | 290 | |||
| 3 | C – 8 | -19 | 45E | 211 ⚠ | |||
| 4 | E – 27 | -11 | 17W | 13 | |||
| 5 | G – 19 | -15 | 41W | 37 | |||
| 6 | J – 1 | -17 | 60W | 56 | |||
| 7 | H – 2 | 7 | 24W | 20 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.