Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 September 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)
- 17
- Number of spots (f)
- 95
- Relative number (R)
- 265
- Observer
- GA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19780926.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 37 | 58E | 220 | 55E | ||
| 2 | J – 2 | 19 | 62E | 216 | 59E | ||
| 3 | J – 2 | -20 | 79E | 199 | 76E | ||
| 4 | B – 12 | -12 | 39E | 239 | 36E | ||
| 5 | B – 5 | -17 | 52E | 225 | 50E | ||
| 6 | C – 4 | -12 | 27E | 263 ⚠ | 24E | ||
| 7 | A – 1 | -18 | 39E | 239 | 36E | ||
| 8 | D – 17 | -20 | 28W | 307 | 32W | ||
| 9 | H – 6 | -13 | 33W | 311 | 36W | ||
| 10 | H – 7 | -24 | 61W | 339 | 64W | ||
| 11 | J – 1 | -17 | 76W | 354 | 79W | ||
| 12 | D – 10 | 14 | 58W | 336 | 61W | ||
| 13 | J – 2 | 34 | 84W | 2 | 87W | ||
| 14 | J – 2 | 24 | 28W | 306 | 31W | ||
| 15 | C – 4 | 20 | 15W | 293 | 18W | ||
| 16 | A – 1 | 22 | 11W | 289 | 14W | ||
| 17 | D – 17 | 29 | 01W | 279 | 04W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.