Daily Sunspot Evaluation
Observation Sheet Thursday, 14 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)
- 11
- Number of spots (f)
- 99
- Relative number (R)
- 209
- Observer
- FA
- Reading
- all checks consistent
- File
- 19700514.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 5 | 20 | 11E | 297 | |||
| 2 | F – 34 | 18 | 54E | 254 | |||
| 3 | A – 9 | 1 | 20E | 288 | |||
| 4 | J – 2 | -7 | 26E | 282 | |||
| 5 | A – 2 | -11 | 52E | 256 | |||
| 6 | J – 1 | -11 | 33E | 275 | |||
| 7 | A – 1 | -17 | 53E | 255 | |||
| 8 | F – 37 | -9 | 04E | 304 | |||
| 9 | A – 1 | -5 | 16W | 324 | |||
| 10 | G – 5 | 16 | 64W | 12 | |||
| 11 | A – 2 | 8 | 13W | 321 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.