Daily Sunspot Evaluation
Observation Sheet Sunday, 27 December 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)
- 76
- Relative number (R)
- 146
- Observer
- YK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19981227.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKF – 23 | 27 | 19W | 226 | 21W | 8 | 288 298 |
| 2 | AX – 4 | 22 | 20W | 227 | 22W | 1 | 300 288 |
| 3 | CSO – 4 | 19 | 13W | 220 | 15W | 4.5 | 289 296 |
| 4 | BXO – 2 | 23 | 21E | 228 ⚠ | 19E | 3.5 | 301 300 |
| 5 | HR – 1 | 17 | 22E | 105 ⚠ | 20E | 0.5 | 302 301 |
| 6 | DKC – 29 | 27 | 35E | 172 | 33E | 8.5 | 303 302 |
| 7 | DSI – 13 | -23 | 48E | 159 | 46E | 8.5 | 304 303 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.