Daily Sunspot Evaluation
Observation Sheet Sunday, 12 July 1998
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)
- 6
- Number of spots (f)
- 22
- Relative number (R)
- 82
- Observer
- MB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19980712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 17 | 80W | 343 | 80W | ? | 128 225 |
| 2 | HR – 1 | 18 | 04W | 276 ⚠ | 43W | 0.6 | 132 |
| 3 | HA – 4 | 17 | 51E | 212 | 51E | 03 | 135+52 |
| 4 | ? – 1 | -21 | 80W | 343 | 80W | ? | 129+25 |
| 5 | DAO – 10 | -21 | 48E | 215 | 48E | 08.5 | 139+56 |
| 6 | CAO – 5 | -12 | 53E | 240 ⚠ | 53E | 04 | 141+58 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.