Daily Sunspot Evaluation
Observation Sheet Sunday, 2 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)
- 8
- Number of spots (f)
- 34
- Relative number (R)
- 114
- Observer
- GT
- Reading
- all checks consistent
- File
- 19780402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 32 | 34E | 62 | 33E | ||
| 2 | A – 1 | 20 | 26E | 70 | 25E | ||
| 3 | E – 10 | 22 | 63E | 33 | 62E | ||
| 4 | A – 1 | 16 | 60E | 36 | 59E | ||
| 5 | J – 4 | -14 | 29E | 67 | 28E | ||
| 6 | C – 8 | -18 | 19E | 77 | 18E | ||
| 7 | A – 3 | 13 | 44W | 140 | 45W | ||
| 8 | A – 1 | 24 | 56W | 152 | 57W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.