Daily Sunspot Evaluation
Observation Sheet Thursday, 16 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)
- 5
- Number of spots (f)
- 25
- Relative number (R)
- 75
- Observer
- NA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19980716.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | -11 | 01W | 219 ⚠ | 04W | 140 | |
| 2 | DSO – 9 | -22 | 02W | 244 ⚠ | 05W | 5 | 138 |
| 3 | CRO – 4 | -28 | 16E | 196 | 13E | 6 | 124 |
| 4 | DSO – 5 | -21 | 19E | 193 | 16E | 5 | 125 |
| 5 | BXI – 5 | -29 | 56E | 156 | 53E | 5 | 123 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.