Daily Sunspot Evaluation
Observation Sheet Monday, 1 July 1968
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)
- 6
- Number of spots (f)
- 29
- Relative number (R)
- 89
- Observer
- AT
- Reading
- all checks consistent
- File
- 19680701.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | -20 | 52W | 2 | |||
| 2 | A – 3 | -15 | 61W | 11 | |||
| 3 | A – 2 | -14 | 71W | 21 | |||
| 4 | J – 1 | -13 | 88W | 37 | |||
| 5 | H – 6 | 13 | 59W | 9 | |||
| 6 | D – 15 | 29 | 40W | 350 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.