Daily Sunspot Evaluation
Observation Sheet Monday, 27 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)
- 10
- Number of spots (f)
- 61
- Relative number (R)
- 161
- Observer
- BG
- Reading
- all checks consistent
- File
- 19590727.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 6 | 36 | 51E | ||||
| 2 | J – 1 | 27 | 38E | ||||
| 3 | H – 9 | 25 | 28E | ||||
| 4 | F – 31 | 12 | 55E | ||||
| 5 | J – 1 | 6 | 47E | ||||
| 6 | J – 1 | -12 | 12E | ||||
| 7 | A – 2 | -19 | 34W | ||||
| 8 | D – 8 | -6 | 37W | ||||
| 9 | H – 1 | 18 | 31W | ||||
| 10 | A – 1 | 23 | 35W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.