Daily Sunspot Evaluation
Observation Sheet Friday, 30 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)
- 5
- Number of spots (f)
- 10
- Relative number (R)
- 60
- Observer
- TA
- Reading
- all checks consistent
- File
- 19930430.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 2 | 8 | 04E | 128 | 01E | 4.5 | 103 |
| 2 | AX – 1 | -13 | 21W | 153 | 24W | - | 107 |
| 3 | DRO – 2 | -13 | 18W | 150 | 21W | 3 | 111 |
| 4 | HR – 1 | -3 | 35E | 97 | 32E | 1 | 110 |
| 5 | DAI – 4 | -11 | 44E | 88 | 41E | 3.5 | 156 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.