Daily Sunspot Evaluation
Observation Sheet Friday, 1 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)
- 8
- Number of spots (f)
- 58
- Relative number (R)
- 138
- Observer
- MÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19700501.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 1 | 13 | 67E | 55 | |||
| 2 | H – 1 | 12 | 63E | 53 ⚠ | |||
| 3 | J – 1 | -15 | 42E | 80 | |||
| 4 | C – 15 | -10 | 13E | 109 | |||
| 5 | J – 1 | -20 | 50E | 72 | |||
| 6 | H – 3 | -9 | 0 | 122 | |||
| 7 | C – 16 | -14 | 39W | 161 | |||
| 8 | D – 20 | 19 | 13W | 185 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.