Daily Sunspot Evaluation
Observation Sheet Friday, 22 May 1970
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)
- 73
- Relative number (R)
- 163
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700522.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 17 | 15 | 03E | 199 | |||
| 2 | D – 8 | 14 | 38E | 164 | |||
| 3 | J – 1 | 17 | 55E | 147 | |||
| 4 | A – 1 | 20 | 73E | 129 | |||
| 5 | J – 1 | -7 | 76E | 126 | |||
| 6 | D – 20 | -10 | 40W | 242 | |||
| 7 | A – 1 | -6 | 39W | 241 | |||
| 8 | ? – 1 | -8 | 78W | 280 | |||
| 9 | E – 23 | 17 | 54W | 256 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.