Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 October 1988
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)
- 14
- Number of spots (f)
- 82
- Relative number (R)
- 222
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19881012.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CKI – 11 | 22 | 37W | 125 | 36W | 8 | 260 |
| 2 | BXI – 10 | 27 | 26W | 114 | 25W | 5 | 261 |
| 3 | HA – 3 | 13 | 02W | 90 | 01W | 1.5 | 264 |
| 4 | BXO – 2 | 27 | 43E | 45 | 44E | 3 | 274 |
| 5 | CSI – 12 | 19 | 54E | 34 | 55E | 8 | 271 |
| 6 | CAE – 5 | 21 | 65E | 23 | 66E | 4 | 272 |
| 7 | HK – 7 | -19 | 69W | 157 | 68W | 9 | 259 |
| 8 | EHC – 10 | -30 | 60W | 148 | 59W | 13 | 263 |
| 9 | BXO – 3 | -15 | 41W | 129 | 40W | 4.5 | 273 |
| 10 | OSO – 5 | -32 | 06E | 82 | 07E | 5.5 | 266 |
| 11 | BXO – 4 | -22 | 10E | 78 | 11E | 4.5 | 270 |
| 12 | BXO – 4 | -20 | 21E | 67 | 22E | 4 | 275 |
| 13 | HA – 3 | -11 | 27E | 61 | 28E | 2.5 | 276 |
| 14 | BXO – 3 | -23 | 37E | 51 | 38E | 2.5 | 277 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.