Daily Sunspot Evaluation
Observation Sheet Monday, 19 January 1998
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)
- 6
- Number of spots (f)
- 10
- Relative number (R)
- 70
- Observer
- TA
- Reading
- all checks consistent
- File
- 19980119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 16 | 60W | 101 | 61W | - | 11 |
| 2 | AX – 2 | 14 | 20E | 21 | 19E | 0.5 | 12 |
| 3 | AX – 1 | 24 | 58E | 343 | 57E | 0.5 | 13 |
| 4 | ? – 2 | -23 | 85W | 126 | 86W | 8 | 13 |
| 5 | HR – 1 | -14 | 52W | 93 | 53W | 1 | 14 |
| 6 | BXO – 3 | -18 | 02W | 43 | 03W | 3 | 15 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.