Daily Sunspot Evaluation
Observation Sheet Friday, 7 June 1968
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)
- 10
- Number of spots (f)
- 81
- Relative number (R)
- 181
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680607.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 15 | 18 | 17E | 251 | |||
| 2 | D – 4 | 11 | 31E | 237 | |||
| 3 | J – 2 | 16 | 65E | 203 | |||
| 4 | D – 28 | -14 | 21E | 247 | |||
| 5 | D – 15 | -35 | 48W | 316 | 1 | ||
| 6 | C – 7 | -27 | 42W | 310 | |||
| 7 | C – 5 | -15 | 52W | 320 | |||
| 8 | J – 1 | -11 | 65W | 333 | |||
| 9 | J – 1 | 20 | 70W | 338 | |||
| 10 | H – 3 | 17 | 26W | 294 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.