Daily Sunspot Evaluation
Observation Sheet Saturday, 3 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)
- 38
- Relative number (R)
- 88
- Observer
- YK
- Reading
- all checks consistent
- File
- 19930403.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 5 | 6 | 35W | 163 | 37W | 3.5 | 79 |
| 2 | DAO – 10 | -21 | 26W | 154 | 28W | 8 | 84 |
| 3 | DAI – 12 | -12 | 11W | 139 | 13W | 7 | 81 |
| 4 | HA – 7 | -5 | 18E | 110 | 16E | 4.5 | 82 |
| 5 | BXO – 4 | -10 | 54E | 74 | 52E | 8 | 86 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.