Daily Sunspot Evaluation
Observation Sheet Monday, 7 July 1969
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)
- 48
- Relative number (R)
- 138
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19690707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 13 | 58E | 35 | |||
| 2 | J – 1 | 9 | 28E | 65 | |||
| 3 | ? – 5 | -17 | 76E | 17 | |||
| 4 | B – 5 | -16 | 06E | 87 | |||
| 5 | H – 24 | -17 | 01W | 94 | |||
| 6 | B – 3 | -13 | 08W | 101 | |||
| 7 | A – 1 | -35 | 34W | 127 | |||
| 8 | J – 1 | 17 | 34W | 127 | |||
| 9 | H – 2 | 13 | 02W | 95 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.