Daily Sunspot Evaluation
Observation Sheet Friday, 16 January 1970
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)
- 12
- Number of spots (f)
- 84
- Relative number (R)
- 204
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 13 | 03E | 63 | |||
| 2 | D – 10 | 15 | 49E | 17 | |||
| 3 | H – 7 | -7 | 35E | 31 | |||
| 4 | A – 2 | -11 | 47E | 19 | |||
| 5 | A – 2 | -11 | 59E | 7 | |||
| 6 | E – 14 | -11 | 14E | 52 | |||
| 7 | J – 1 | -15 | 09E | 57 | |||
| 8 | B – 11 | -13 | 10W | 76 | |||
| 9 | D – 15 | -20 | 29W | 95 | |||
| 10 | E – 15 | -12 | 33W | 99 | |||
| 11 | J – 1 | -13 | 54W | 120 | |||
| 12 | J – 4 | -10 | 48W | 114 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.