Daily Sunspot Evaluation
Observation Sheet Thursday, 22 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)
- 15
- Number of spots (f)
- 75
- Relative number (R)
- 225
- Observer
- FY
- Reading
- all checks consistent
- File
- 19580522.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 8 | 21 | 13E | ||||
| 2 | J – 1 | 18 | 32E | ||||
| 3 | J – 1 | 10 | 60E | ||||
| 4 | B – 3 | 5 | 42E | ||||
| 5 | A – 1 | 0 | 54E | ||||
| 6 | J – 1 | -15 | 60E | ||||
| 7 | A – 3 | -10 | 26E | ||||
| 8 | A – 1 | -19 | 35E | ||||
| 9 | B – 5 | -11 | 13E | ||||
| 10 | A – 2 | -24 | 28W | ||||
| 11 | J – 1 | -24 | 51W | ||||
| 12 | G – 3 | -7 | 40W | ||||
| 13 | C – 7 | 25 | 44W | ||||
| 14 | D – 19 | 41 | 17W | ||||
| 15 | E – 19 | 9 | 2W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.