Daily Sunspot Evaluation
Observation Sheet Wednesday, 13 October 1993
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)
- 2
- Number of spots (f)
- 17
- Relative number (R)
- 37
- Observer
- MB
- Reading
- all checks consistent
- File
- 19931013.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 14 | 54E | 43 | 52E | 2 | 251 |
| 2 | EAO – 15 | -21 | 17E | 80 | 15E | 11 | 250 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.