Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 July 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)
- 12
- Number of spots (f)
- 37
- Relative number (R)
- 157
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780719.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 22 | 02E | 108 | 01W | ||
| 2 | A – 3 | 16 | 06E | 104 | 03E | ||
| 3 | A – 1 | -26 | 41E | 69 | 38E | ||
| 4 | J – 1 | -23 | 13W | 123 | 16W | ||
| 5 | A – 1 | -26 | 17W | 127 | 20W | ||
| 6 | B – 4 | 11 | 28W | 138 | 31W | ||
| 7 | A – 1 | 12 | 39W | 149 | 42W | ||
| 8 | F – 13 | 17 | 58W | 168 | 61W | ||
| 9 | J – 2 | 12 | 19W | 129 | 22W | ||
| 10 | A – 4 | 17 | 29W | 139 | 32W | ||
| 11 | A – 1 | 11 | 11W | 121 | 14W | ||
| 12 | J – 4 | 19 | 02W | 112 | 05W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.