Daily Sunspot Evaluation
Observation Sheet Friday, 13 October 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)
- 11
- Number of spots (f)
- 112
- Relative number (R)
- 222
- Observer
- GA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19781013.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 14 | 21 | 48E | 36 ⚠ | 15E | ||
| 2 | J – 1 | 30 | 45E | 9 | 42E | ||
| 3 | A – 5 | 33 | 62E | 352 | 59E | ||
| 4 | J – 2 | -20 | 51E | 3 | 48E | ||
| 5 | D – 12 | -16 | 31E | 23 | 28E | ||
| 6 | D – 33 | -19 | 08E | 46 | 05E | ||
| 7 | B – 9 | -24 | 05E | 49 | 02E | ||
| 8 | J – 1 | -21 | 10W | 64 | 13W | ||
| 9 | F – 26 | -25 | 66W | 120 | 69W | ||
| 10 | A – 1 | 21 | 53W | 109 | 56W | ||
| 11 | D – 8 | 17 | 15W | 69 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.