Daily Sunspot Evaluation
Observation Sheet Thursday, 2 July 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)
- 13
- Number of spots (f)
- 43
- Relative number (R)
- 173
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590702.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 21 | 35 | ||||
| 2 | C – 8 | 10 | 20 | ||||
| 3 | D – 6 | 18 | 56 | ||||
| 4 | B – 3 | -23 | 12 | ||||
| 5 | J – 1 | -15 | 14 | ||||
| 6 | A – 1 | -7 | 17 | ||||
| 7 | H – 8 | -14 | 55 | ||||
| 8 | A – 1 | 10 | 47 | ||||
| 9 | J – 1 | 15 | 70 | ||||
| 10 | H – 2 | 20 | 62 | ||||
| 11 | J – 1 | 24 | 73 | ||||
| 12 | C – 4 | 35 | 37 | ||||
| 13 | C – 6 | 29 | 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.