Daily Sunspot Evaluation
Observation Sheet Saturday, 28 May 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)
- 10
- Number of spots (f)
- 56
- Relative number (R)
- 156
- Observer
- SG
- Reading
- all checks consistent
- File
- 19600528.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 4 | 13 | 59E | ||||
| 2 | A – 1 | 3 | 38E | ||||
| 3 | ? – 5 | -10 | 74E | ||||
| 4 | B – 8 | -16 | 45E | ||||
| 5 | A – 1 | -21 | 58E | ||||
| 6 | ? – 2 | 1 | 73W | ||||
| 7 | ? – 1 | 19 | 75W | ||||
| 8 | C – 9 | 9 | 27W | ||||
| 9 | E – 20 | 15 | 43W | ||||
| 10 | B – 5 | 3 | 7W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.