Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 August 1979
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)
- 7
- Number of spots (f)
- 55
- Relative number (R)
- 125
- Observer
- GA
- Reading
- all checks consistent
- File
- 19790815.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 18 | 35E | 299 | 33E | 145 | |
| 2 | J – 1 | 19 | 79E | 255 | 77E | 150 | |
| 3 | A – 1 | -13 | 71E | 263 | 69E | 151 | |
| 4 | E – 15 | -24 | 62E | 272 | 60E | 148 | |
| 5 | D – 6 | -23 | 43E | 291 | 41E | 146 | |
| 6 | J – 1 | -17 | 54W | 28 | 56W | 132 | |
| 7 | E – 30 | 15 | 19W | 353 | 21W | 136 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.