Daily Sunspot Evaluation
Observation Sheet Monday, 9 July 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)
- 13
- Number of spots (f)
- 109
- Relative number (R)
- 239
- Observer
- HM
- Reading
- all checks consistent
- File
- 19790709.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 18 | 22 | 08E | 97 | 05E | 84 | |
| 2 | H – 2 | 13 | 04E | 101 | 01E | 72 | |
| 3 | D – 24 | 29 | 30E | 75 | 27E | 83 | |
| 4 | A – 3 | -14 | 15E | 90 | 12E | 80 | |
| 5 | J – 1 | -17 | 14E | 91 | 11E | 75 | |
| 6 | C – 12 | -28 | 15E | 90 | 12E | 76 | |
| 7 | H – 10 | -25 | 60W | 165 | 63W | 58 | |
| 8 | H – 1 | 4 | 44W | 149 | 47W | 63 | |
| 9 | E – 25 | 10 | 16W | 121 | 19W | 67 | |
| 10 | D – 5 | 16 | 75W | 180 | 78W | 56 | |
| 11 | A – 2 | 17 | 16W | 121 | 19W | 89 | |
| 12 | H – 2 | 22 | 24W | 129 | 27W | 66 | |
| 13 | A – 4 | 19 | 11W | 116 | 14W | 79 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.