Daily Sunspot Evaluation
Observation Sheet Saturday, 19 September 1992
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)
- 18
- Relative number (R)
- 78
- Observer
- YK
- Reading
- all checks consistent
- File
- 19920919.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKO – 8 | 17 | 70W | 262 | 73W | 12 | 320 |
| 2 | AX – 2 | 13 | 01E | 191 | 02W | 0.5 | 335 |
| 3 | HS – 1 | -13 | 31W | 223 | 34W | 10 | 324 |
| 4 | HS – 1 | 14 | 27E | 165 | 24E | 1.5 | 330 |
| 5 | CRO – 5 | -8 | 28E | 164 | 25E | 4.5 | 331 |
| 6 | AX – 1 | -20 | 45E | 147 | 42E | - | 336 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.