Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 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)
- 104
- Relative number (R)
- 204
- Observer
- HM
- Reading
- all checks consistent
- File
- 19790904.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 8 | 13 | 05E | 66 | 02E | 173 | |
| 2 | E – 25 | 22 | 08E | 63 | 05E | 178 | |
| 3 | D – 25 | 15 | 23E | 48 | 20E | 182 | |
| 4 | ? – 1 | 15 | 85E | 346 | 82E | 190 | |
| 5 | A – 2 | -11 | 66E | 5 | 63E | 191 | |
| 6 | D – 20 | -18 | 37E | 34 | 34E | 183 | |
| 7 | D – 10 | -20 | 21W | 92 | 24W | 186 | |
| 8 | C – 6 | 13 | 32W | 103 | 35W | 183 | |
| 9 | ? – 1 | 17 | 81W | 152 | 84W | 177 | |
| 10 | G – 6 | 18 | 26W | 97 | 29W | 170 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.