Daily Sunspot Evaluation
Observation Sheet Monday, 19 October 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)
- 60
- Relative number (R)
- 150
- Observer
- HA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19701019.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 22 | 02E | 17 | |||
| 2 | ? – 2 | 14 | 80E | 239 ⚠ | |||
| 3 | E – 16 | 12 | 43E | 336 | |||
| 4 | A – 1 | -13 | 30W | 49 | |||
| 5 | G – 3 | -8 | 73W | 32 ⚠ | |||
| 6 | D – 5 | 5 | 43W | 62 | |||
| 7 | D – 16 | 11 | 28W | 68 ⚠ | |||
| 8 | D – 13 | 11 | 14W | 33 | |||
| 9 | H – 3 | 18 | 11W | 30 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.