Daily Sunspot Evaluation
Observation Sheet Monday, 3 April 1978
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)
- 7
- Number of spots (f)
- 31
- Relative number (R)
- 101
- Observer
- FA
- Reading
- all checks consistent
- File
- 19780403.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 30 | 18E | 66 | 16E | ||
| 2 | E – 15 | 22 | 52E | 32 | 50E | ||
| 3 | A – 1 | 16 | 48E | 35 | 47E | ||
| 4 | J – 2 | -15 | 17E | 67 | 15E | ||
| 5 | B – 7 | -18 | 07E | 77 | 05E | ||
| 6 | A – 2 | 12 | 46W | 130 | 48W | ||
| 7 | B – 2 | 24 | 65W | 149 | 67W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.