Daily Sunspot Evaluation
Observation Sheet Saturday, 31 October 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)
- 4
- Number of spots (f)
- 11
- Relative number (R)
- 51
- Observer
- HE
- Reading
- all checks consistent
- File
- 19981031.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 3 | 18 | 17W | 254 | 18W | 2 | 254 389 |
| 2 | CAO – 3 | 17 | 54E | 183 | 53E | 6 | 256 385 |
| 3 | AX – 2 | -24 | 36E | 201 | 35E | 1 | 258 387 |
| 4 | HR – 3 | -17 | 48E | 189 | 47E | 2 | 263 358 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.