Daily Sunspot Evaluation
Observation Sheet Friday, 9 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)
- 6
- Number of spots (f)
- 63
- Relative number (R)
- 123
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 19981009.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 2 | 18 | 76W | 245 | 78W | 5 | 220 226 |
| 2 | ESI – 34 | 20 | 12W | 181 | 15W | 17 | 221 230 |
| 3 | AX – 2 | 20 | 34E | 135 | 31E | 05 | 235 254 |
| 4 | BXO – 2 | -25 | 73W | 242 | 76W | 5 | 220 225 |
| 5 | CRO – 4 | -18 | 18W | 187 | 21W | 6 | 226 235 |
| 6 | DAC – 19 | -21 | 48E | 121 | 45W | 7 | 228 229 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.