Daily Sunspot Evaluation
Observation Sheet Thursday, 29 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)
- 12
- Number of spots (f)
- 41
- Relative number (R)
- 161
- Observer
- FY
- Reading
- all checks consistent
- File
- 19580529.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | 28 | 17E | ||||
| 2 | J – 1 | 26 | 52E | ||||
| 3 | ? – 1 | 26 | 78E | ||||
| 4 | A – 2 | 18 | 60E | ||||
| 5 | A – 1 | 12 | 63E | ||||
| 6 | J – 1 | -16 | 43E | ||||
| 7 | B – 3 | -33 | 28E | ||||
| 8 | E – 15 | -16 | 5E | ||||
| 9 | J – 1 | -15 | 32W | ||||
| 10 | H – 2 | 9 | 33W | ||||
| 11 | C – 2 | 13 | 8W | ||||
| 12 | J – 1 | 20 | 9W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.