Daily Sunspot Evaluation
Observation Sheet Saturday, 13 January 1979
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)
- 12
- Number of spots (f)
- 126
- Relative number (R)
- 246
- Observer
- GT
- Reading
- all checks consistent
- File
- 19790113.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 12 | 66E | 214 | 65E | 30 | |
| 2 | A – 3 | -22 | 37E | 243 | 36E | 15 | |
| 3 | D – 21 | -21 | 28E | 252 | 27E | 32 | |
| 4 | A – 2 | -26 | 20E | 260 | 19E | 23 | |
| 5 | C – 11 | -23 | 03E | 277 | 02E | 34 | |
| 6 | H – 21 | -18 | 51W | 331 | 52W | 16 | |
| 7 | B – 8 | -14 | 44W | 324 | 45W | 36 | |
| 8 | E – 12 | 9 | 70W | 350 | 71W | 20 | |
| 9 | A – 1 | 23 | 68W | 348 | 69W | 14 | |
| 10 | G – 5 | 17 | 25W | 305 | 26W | 19 | |
| 11 | A – 2 | 14 | 15W | 295 | 16W | 35 | |
| 12 | E – 39 | 16 | 08W | 288 | 09W | 22 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.