Daily Sunspot Evaluation
Observation Sheet Friday, 30 May 1980
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)
- 11
- Number of spots (f)
- 99
- Relative number (R)
- 209
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800530.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAG – 20 | 10 | 27W | 150 | 30W | 13 | |
| 2 | BIX – 1 | 12 | 17E | 106 | 14E | 2 | |
| 3 | HAK – 1 | 13 | 67E | 56 | 64E | 1 | |
| 4 | CAO – 5 | -8 | 64W | 187 | 67W | 10 | |
| 5 | HEK – 5 | -14 | 57W | 180 | 60W | 8 | |
| 6 | DEK – 8 | -20 | 51W | 174 | 54W | 8 | |
| 7 | AXK – 7 | -18 | 28W | 151 | 31W | 2 | |
| 8 | ELC – 41 | -10 | 10E | 113 | 07E | 10.5 | |
| 9 | BAI – 5 | -31 | 33E | 90 | 30E | 4.5 | |
| 10 | HEK – 5 | -20 | 47E | 74 | 46E | 4.5 | |
| 11 | ARK – 1 | -12 | 71E | 52 | 68E | 15 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.