Daily Sunspot Evaluation
Observation Sheet Friday, 19 August 1960
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)
- 10
- Number of spots (f)
- 156
- Relative number (R)
- 256
- Observer
- BG
- Reading
- all checks consistent
- File
- 19600819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 16 | 13 | 16E | ||||
| 2 | D – 5 | -9 | 53E | ||||
| 3 | C – 8 | -18 | 60E | ||||
| 4 | E – 51 | -10 | 10WE | ||||
| 5 | E – 12 | -7 | 38W | ||||
| 6 | C – 4 | -13 | 63W | ||||
| 7 | D – 3 | 19 | 78W | ||||
| 8 | T – 2 | 23 | 68W | ||||
| 9 | F – 43 | 18 | 30W | ||||
| 10 | C – 12 | 16 | 1WEE |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.