Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 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)
- 7
- Number of spots (f)
- 34
- Relative number (R)
- 104
- Observer
- MB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19980707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 15 | 17 | 05W | 336 | 08W | 7.5 | 178 125 |
| 2 | BXI – 7 | 33 | 44E | 287 | 41E | 5.5 | 131 128 |
| 3 | HR – 1 | 23 | 56E | 215 ⚠ | 53E | 0.5 | 132 125 |
| 4 | ? – 2 | -14 | 73W | 44 | 76W | ? | 171 118 |
| 5 | BXO – 7 | -23 | 44W | 15 | 47W | 10 | 176 125 |
| 6 | HX – 1 | -25 | 28W | 359 | 31W | - | 133 120 |
| 7 | HS – 1 | -21 | 14W | 345 | 17W | 2.5 | 179 128 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.