Daily Sunspot Evaluation
Observation Sheet Friday, 27 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)
- 9
- Number of spots (f)
- 81
- Relative number (R)
- 171
- Observer
- GA
- Reading
- all checks consistent
- File
- 19790727.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 14 | 14E | 213 | 11E | 108 | |
| 2 | D – 19 | 15 | 40E | 187 | 37E | 111 | |
| 3 | ? – 1 | 6 | 77E | 150 | 74E | 117 | |
| 4 | G – 3 | -18 | 61E | 166 | 58E | 114 | |
| 5 | D – 16 | -14 | 04E | 223 | 01E | 112 | |
| 6 | D – 25 | -16 | 17W | 244 | 20W | 115 | |
| 7 | A – 6 | -8 | 56W | 283 | 59W | 107 | |
| 8 | J – 1 | 9 | 51W | 278 | 54W | 100 | |
| 9 | ? – 9 | 30 | 67W | 294 | 70W | 102 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.