Daily Sunspot Evaluation
Observation Sheet Saturday, 2 August 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)
- 174
- Relative number (R)
- 324
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580802.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 14 | 28 | 3E | ||||
| 2 | B – 5 | 8 | 54E | ||||
| 3 | E – 40 | -9 | 20E | ||||
| 4 | J – 1 | -24 | 22E | ||||
| 5 | C – 7 | -10 | 0 | ||||
| 6 | H – 8 | -9 | 8W | ||||
| 7 | D – 11 | -18 | 75W | ||||
| 8 | J – 1 | 5 | 35W | ||||
| 9 | E – 19 | 8 | 24W | ||||
| 10 | B – 2 | 5 | 65W | ||||
| 11 | B – 3 | 13 | 46W | ||||
| 12 | H – 17 | 18 | 65W | ||||
| 13 | H – 4 | 18 | 42W | ||||
| 14 | E – 30 | 15 | 3W | ||||
| 15 | E – 12 | 26 | 8W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.