Daily Sunspot Evaluation
Observation Sheet Tuesday, 14 April 1959
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)
- 14
- Number of spots (f)
- 109
- Relative number (R)
- 249
- Observer
- MH
- Reading
- all checks consistent
- File
- 19590414.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 21 | 25 | 7E | ||||
| 2 | A – 1 | 17 | 5E | ||||
| 3 | A – 1 | 22 | 40E | ||||
| 4 | J – 1 | 17 | 37E | ||||
| 5 | J – 2 | 11 | 46E | ||||
| 6 | G – 9 | -10 | 13E | ||||
| 7 | B – 4 | -23 | 15E | ||||
| 8 | E – 33 | -17 | 4W | ||||
| 9 | J – 2 | -21 | 63W | ||||
| 10 | D – 8 | 0 | 23W | ||||
| 11 | G – 8 | 13 | 51W | ||||
| 12 | A – 4 | 22 | 43W | ||||
| 13 | C – 14 | 9 | 10W | ||||
| 14 | A – 1 | 32 | 14W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.