Daily Sunspot Evaluation
Observation Sheet Sunday, 9 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)
- 8
- Number of spots (f)
- 63
- Relative number (R)
- 143
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19881009.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 8 | 28 | 03W | 130 | 02W | 5 | 260 |
| 2 | BRI – 19 | 27 | 10E | 117 | 11E | 6 | 261 |
| 3 | HA – 3 | 13 | 21E | 106 | 22E | 10 | 262 |
| 4 | CSI – 4 | 13 | 37E | 90 | 38E | 4 | 264 |
| 5 | DKK – 10 | -18 | 31W | 158 | 30W | 2 | 259 |
| 6 | EKI – 13 | -28 | 23W | 150 | 22W | 10 | 263 |
| 7 | BRO – 5 | -32 | 07E | 120 | 08E | 8 | 268 |
| 8 | HS – 1 | -11 | 62E | 65 | 63E | 2 | 267 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.