Daily Sunspot Evaluation
Observation Sheet Friday, 27 June 1975
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)
- 19
- Relative number (R)
- 49
- Observer
- FA
- Reading
- all checks consistent
- File
- 19750627.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 8 | 6 | 48E | 59 | 45E | ||
| 2 | B – 8 | -11 | 52W | 159 | 55W | ||
| 3 | B – 3 | -6 | 53W | 160 | 56W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.