Daily Sunspot Evaluation
Observation Sheet Sunday, 16 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)
- 9
- Number of spots (f)
- 44
- Relative number (R)
- 134
- Observer
- SM
- Reading
- all checks consistent
- File
- 19680616.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 22 | 49E | 100 | |||
| 2 | C – 2 | 14 | 58E | 91 | |||
| 3 | H – 1 | -15 | 35E | 114 | |||
| 4 | A – 5 | -31 | 38E | 111 | |||
| 5 | J – 3 | -31 | 24E | 125 | |||
| 6 | D – 23 | -14 | 33W | 182 | |||
| 7 | A – 1 | 10 | 71W | 220 | |||
| 8 | J – 1 | 16 | 54W | 203 | |||
| 9 | B – 5 | 9 | 23W | 172 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.