Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 June 1973
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)
- 3
- Number of spots (f)
- 48
- Relative number (R)
- 78
- Observer
- HM
- Reading
- all checks consistent
- File
- 19730626.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 11 | -12 | 12W | 43 | 420 | ||
| 2 | G – 7 | -3 | 21W | 52 | 425 | ||
| 3 | H – 30 | -7 | 35W | 66 | 413 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.