Daily Sunspot Evaluation
Observation Sheet Wednesday, 30 May 1990
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)
- 36
- Relative number (R)
- 86
- Observer
- MB
- Reading
- all checks consistent
- File
- 19900530.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 12 | 26W | 185 | 27W | 1 | 220 |
| 2 | DAI – 19 | 20 | 11E | 148 | 10E | 15 | 221 |
| 3 | DAO – 2 | 14 | 40E | 119 | 39E | 3.5 | 225 |
| 4 | AR – 2 | -19 | 29W | 188 | 30W | 0.5 | 227 |
| 5 | BRI – 11 | -12 | 10W | 169 | 11W | 5.5 | 223 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.