Daily Sunspot Evaluation
Observation Sheet Saturday, 19 August 1978
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)
- 4
- Number of spots (f)
- 19
- Relative number (R)
- 59
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 8 | -18 | 29E | 31 | 26E | C | |
| 2 | A – 2 | -34 | 26W | 86 | 29W | C | |
| 3 | D – 7 | 20 | 61W | 121 | 64W | ||
| 4 | J – 2 | 44 | 18W | 78 | 21W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.