Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 July 1960
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)
- 5
- Number of spots (f)
- 36
- Relative number (R)
- 86
- Observer
- ET
- Reading
- all checks consistent
- File
- 19600712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 7 | 19 | 15E | ||||
| 2 | J – 1 | 23 | 64E | ||||
| 3 | C – 8 | 18 | 58E | ||||
| 4 | ? – 1 | -17 | 82E | ||||
| 5 | E – 19 | 15 | 26W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.