Daily Sunspot Evaluation
Observation Sheet Thursday, 28 May 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)
- 8
- Number of spots (f)
- 51
- Relative number (R)
- 131
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590528.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 22 | 1E | ||||
| 2 | B – 4 | 15 | 22E | ||||
| 3 | A – 1 | -35 | 30E | ||||
| 4 | F – 19 | -16 | 21W | ||||
| 5 | E – 14 | 3 | 32W | ||||
| 6 | C – 7 | 13 | 46W | ||||
| 7 | J – 2 | 12 | 36W | ||||
| 8 | C – 3 | 10 | 22W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.