Daily Sunspot Evaluation
Observation Sheet Wednesday, 2 August 1972
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)
- 8
- Number of spots (f)
- 49
- Relative number (R)
- 129
- Observer
- SK
- Reading
- all checks consistent
- File
- 19720802.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 12 | 12 | 32E | 11 | |||
| 2 | A – 1 | -12 | 51E | 352 | |||
| 3 | B – 10 | -4 | 19E | 24 | |||
| 4 | A – 3 | -20 | 12W | 55 | |||
| 5 | D – 10 | -17 | 18W | 61 | |||
| 6 | C – 7 | -15 | 25W | 68 | |||
| 7 | G – 5 | -14 | 42W | 85 | |||
| 8 | J – 1 | 5 | 76W | 119 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.