Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 September 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)
- 11
- Number of spots (f)
- 71
- Relative number (R)
- 181
- Observer
- SM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19790919.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 6 | 27 | 67E | 166 | 64E | 214 | |
| 2 | E – 23 | 6 | 41E | 192 | 38E | 211 | |
| 3 | A – 1 | -12 | 60E | 173 | 57E | 215 | |
| 4 | C – 6 | -19 | 67E | 166 | 64E | 216 | |
| 5 | J – 1 | -21 | 37E | 196 | 34E | 212 | |
| 6 | A – 4 | -21 | 24E | 209 | 21E | 217 | |
| 7 | A – 1 | -11 | 04E | 229 | 01E | 206 | |
| 8 | H – 14 | -26 | 33W | 266 | 36W | 200 | |
| 9 | A – 4 | -12 | 21W | 254 | 24W | 210 | |
| 10 | A – 2 | -10 | 53W | 236 ⚠ | 56W | 213 | |
| 11 | E – 9 | 8 | 75W | 308 | 78W | 196 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.