Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 August 1970
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)
- 6
- Number of spots (f)
- 28
- Relative number (R)
- 88
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 20 | 14 | 10E | 295 | |||
| 2 | J – 1 | 17 | 48E | 257 | |||
| 3 | G – 3 | 18 | 72E | 233 | |||
| 4 | J – 1 | -8 | 27W | 332 | |||
| 5 | J – 2 | -11 | 49W | 354 | |||
| 6 | J – 1 | 5 | 85W | 30 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.