Daily Sunspot Evaluation
Observation Sheet Saturday, 1 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
- AÖ0
- Reading
- all checks consistent
- File
- 19790901.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 24 | 03E | 108 | 172 | ||
| 2 | G – 15 | 18 | 12E | 99 | 09E | 170 | |
| 3 | C – 13 | 21 | 48E | 63 | 45E | 178 | |
| 4 | B – 7 | 12 | 33E | 78 | 30E | 181 | |
| 5 | A – 3 | 14 | 64E | 47 | 61E | 182 | |
| 6 | C – 12 | 12 | 49E | 62 | 46E | 179 | |
| 7 | ? – 2 | -18 | 77E | 34 | 74E | 183 | |
| 8 | ? – 2 | -33 | 71W | 182 | 74W | 160 | |
| 9 | ? – 7 | 5 | 74W | 185 | 77W | 157 | |
| 10 | C – 8 | 18 | 46W | 157 | 49W | 177 | |
| 11 | A – 1 | 20 | 69W | 180 | 72W | 165 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.