Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 May 1958
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)
- 16
- Number of spots (f)
- 63
- Relative number (R)
- 223
- Observer
- SG
- Reading
- all checks consistent
- File
- 19580527.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 20 | 8E | ||||
| 2 | J – 3 | 21 | 20E | ||||
| 3 | A – 2 | 26 | 33E | ||||
| 4 | A – 3 | 16 | 21E | ||||
| 5 | ? – 1 | 26 | 78E | ||||
| 6 | ? – 3 | -14 | 72E | ||||
| 7 | E – 12 | -16 | 31E | ||||
| 8 | A – 2 | -14 | 21E | ||||
| 9 | A – 2 | -32 | 50E | ||||
| 10 | A – 2 | -27 | 7W | ||||
| 11 | H – 3 | -16 | 6W | ||||
| 12 | C – 7 | -12 | 53W | ||||
| 13 | C – 6 | 10 | 70W | ||||
| 14 | B – 8 | 7 | 24W | ||||
| 15 | J – 1 | 23 | 52W | ||||
| 16 | H – 7 | 11 | 5W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.