Daily Sunspot Evaluation
Observation Sheet Friday, 7 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)
- 82
- Relative number (R)
- 162
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19881007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 18 | 23 | 27E | 130 | 25E | 6 | 260 |
| 2 | CAI – 10 | 28 | 40E | 117 | 38E | 5 | 261 |
| 3 | HA – 4 | 13 | 52E | 105 | 50E | 2 | 262 |
| 4 | HA – 2 | 12 | 68E | 89 | 66E | 2 | 264 |
| 5 | AX – 1 | 15 | 73E | 84 | 71E | 265 | |
| 6 | DKC – 3 | -27 | 64W | 221 | 66W | 6 | 249 |
| 7 | EKO – 38 | -17 | 03E | 154 | 01E | 14 | 259 |
| 8 | CAI – 6 | -28 | 08E | 149 | 06E | 4 | 266 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.