Daily Sunspot Evaluation
Observation Sheet Tuesday, 9 May 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)
- 7
- Number of spots (f)
- 36
- Relative number (R)
- 106
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780509.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 18 | 32E | 297 | 29E | ||
| 2 | C – 12 | 18 | 42E | 287 | 39E | ||
| 3 | A – 1 | 20 | 66E | 263 | 63E | ✓ | |
| 4 | ? – 6 | -18 | 70E | 259 | 67E | ||
| 5 | A – 1 | -13 | 19E | 310 | 16E | ✓ | |
| 6 | D – 6 | -27 | 14W | 343 | 17W | ||
| 7 | C – 5 | 16 | 22W | 351 | 25W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.