Daily Sunspot Evaluation
Observation Sheet Saturday, 14 May 1977
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)
- 10
- Relative number (R)
- 40
- Observer
- HM
- Reading
- all checks consistent
- File
- 19770514.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 30 | 20E | 20 | 18E | ||
| 2 | A – 4 | -22 | 35E | 5 | 33E | ||
| 3 | D – 3 | -21 | 21E | 19 | 19E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.