Daily Sunspot Evaluation
Observation Sheet Tuesday, 13 September 1994
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)
- 3
- Relative number (R)
- 23
- Observer
- MB
- Reading
- all checks consistent
- File
- 19940913.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 25 | 09E | 347 | 06E | ~01 | 164 |
| 2 | HS – 1 | -8 | 52W | 53 | 60W | ~25 | 480 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.