Daily Sunspot Evaluation
Observation Sheet Sunday, 19 June 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)
- 7
- Number of spots (f)
- 31
- Relative number (R)
- 101
- Observer
- ET
- Reading
- all checks consistent
- File
- 19600619.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 5 | 22 | 20E | ||||
| 2 | J – 1 | 14 | 26E | ||||
| 3 | ? – 1 | 20 | 85E | ||||
| 4 | A – 1 | -14 | 36E | ||||
| 5 | D – 11 | -11 | 42W | ||||
| 6 | C – 10 | 22 | 67W | ||||
| 7 | A – 2 | 17 | 11W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.