Daily Sunspot Evaluation
Observation Sheet Friday, 7 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)
- 10
- Number of spots (f)
- 116
- Relative number (R)
- 216
- Observer
- HM
- Reading
- all checks consistent
- File
- 19790907.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 27 | 69E | 322 | 66E | 192 | |
| 2 | E – 39 | 14 | 47E | 344 | 44E | 190 | |
| 3 | A – 2 | -31 | 13E | 18 | 10E | 193 | |
| 4 | G – 20 | -18 | 02W | 33 | 05W | 183 | |
| 5 | C – 3 | -21 | 63W | 94 | 66W | 186 | |
| 6 | A – 2 | 12 | 36W | 67 | 39W | 194 | |
| 7 | J – 1 | 13 | 74W | 105 | 77W | 189 | |
| 8 | E – 35 | 14 | 17W | 48 | 20W | 182 | |
| 9 | H – 1 | 18 | 71W | 102 | 74W | 170 | |
| 10 | G – 11 | 22 | 32W | 63 | 35W | 178 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.