Daily Sunspot Evaluation
Observation Sheet Sunday, 6 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)
- 13
- Number of spots (f)
- 47
- Relative number (R)
- 177
- Observer
- AT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19690706.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 7 | 03E | 103 | |||
| 2 | H – 4 | 12 | 11E | 95 | |||
| 3 | C – 3 | 14 | 72E | 34 | |||
| 4 | J – 1 | 8 | 41E | 65 | |||
| 5 | A – 1 | -27 | 44E | 62 | |||
| 6 | A – 2 | -18 | 20E | 86 | |||
| 7 | H – 15 | -17 | 12E | 94 | |||
| 8 | B – 4 | -14 | 04E | 102 | |||
| 9 | A – 1 | -36 | 21W | 127 | |||
| 10 | J – 1 | -18 | 78W | 134 ⚠ | |||
| 11 | J – 5 | -10 | 73W | 179 | |||
| 12 | A – 1 | 10 | 18W | 125 | |||
| 13 | J – 3 | 15 | 20W | 126 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.