Daily Sunspot Evaluation
Observation Sheet Wednesday, 18 May 1983
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)
- 8
- Number of spots (f)
- 22
- Relative number (R)
- 102
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19830518.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 8 | 13W | 222 ⚠ | 16W | 0.75 | 124 |
| 2 | HAX – 3 | 10 | 01E | 228 | 02W | 1.75 | 125 |
| 3 | HAX – 4 | 14 | 73E | 156 | 70E | 4 | 131 |
| 4 | OKO – 3 | -8 | 74W | 303 | 77W | 7 | 121 |
| 5 | HSX – 1 | -27 | 68W | 297 | 71W | 2.25 | 122 |
| 6 | OSO – 2 | -7 | 49W | 278 | 52W | 7 | 126 |
| 7 | HSX – 1 | -29 | 34E | 195 | 31E | 2.25 | 129 |
| 8 | OKI – 7 | -26 | 49E | 180 | 46E | 9 | 130 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.