Daily Sunspot Evaluation
Observation Sheet Sunday, 15 June 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)
- 69
- Relative number (R)
- 179
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800615.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 14 | 71W | 342 | 75W | 1.5 | |
| 2 | AXX – 1 | 24 | 69W | 340 | 71W | ||
| 3 | BEE – 5 | 15 | 54W | 325 | 57W | 6.5 | |
| 4 | EKI – 31 | 18 | 08W | 279 | 11W | 11 | |
| 5 | CAO – 5 | 12 | 08W | 279 | 11W | 8.5 | |
| 6 | HIX – 3 | 16 | 50E | 221 | 47E | 3 | |
| 7 | AXX – 1 | 18 | 57E | 214 | 54E | ||
| 8 | AXX – 1 | -16 | 76W | 347 | 79W | ||
| 9 | CSO – 3 | -22 | 34W | 305 | 37W | 3 | |
| 10 | OKT – 16 | -13 | 01E | 270 | 02W | 7.5 | |
| 11 | ATK – 1 | -8 | 76E | 195 | 73E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.