Daily Sunspot Evaluation
Observation Sheet Friday, 13 May 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)
- 3
- Number of spots (f)
- 13
- Relative number (R)
- 43
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19940513.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 7 | 9 | 21E | 158 | 21E | 3.5 | 79 |
| 2 | DAO – 4 | 7 | 58E | 124 | 58E | 5 | 80 |
| 3 | AX – 2 | 8 | 70E | 109 | 70E | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.