Daily Sunspot Evaluation
Observation Sheet Monday, 29 June 1981
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)
- 146
- Relative number (R)
- 226
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19810629.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 40 | 14 | 51W | 359 | 54W | 13 | |
| 2 | DRI – 14 | 19 | 07E | 301 | 04E | 9 | |
| 3 | CAO – 5 | 18 | 44E | 264 | 41E | 6.5 | |
| 4 | ARX – 2 | -20 | 60W | 8 | 63W | 2 | |
| 5 | CRI – 7 | -7 | 25W | 333 | 28W | 2.5 | |
| 6 | BRO – 2 | -13 | 22W | 330 | 25W | 2 | |
| 7 | BRI – 5 | -6 | 16E | 292 | 13E | 3 | |
| 8 | FKC – 71 | -17 | 29E | 279 | 26E | 20 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.