Daily Sunspot Evaluation
Observation Sheet Tuesday, 28 October 1997
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)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 19971028.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | -24 | 49W | 104 | 51W | 1 | 86 |
| 2 | AX – 3 | 18 | 29E | 26 | 27E | 2 | 88 |
| 3 | CAO – 8 | 19 | 35E | 19 | 33E | 5 | 89 |
| 4 | CAO – 13 | -19 | 66E | 349 | 64E | 9 | 90 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.