Daily Sunspot Evaluation
Observation Sheet Thursday, 29 April 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)
- 4
- Number of spots (f)
- 21
- Relative number (R)
- 61
- Observer
- YK
- Reading
- all checks consistent
- File
- 19930429.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 4 | 8 | 17E | 128 | 14E | 8 | 103 |
| 2 | BXI – 11 | -13 | 07W | 152 | 10W | 4.5 | 107 |
| 3 | BXO – 3 | -3 | 47E | 98 | 44E | 3 | 110 |
| 4 | DAO – 3 | -11 | 57E | 88 | 54E | 4 | 106 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.