Daily Sunspot Evaluation
Observation Sheet Thursday, 19 January 1984
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)
- 4
- Number of spots (f)
- 16
- Relative number (R)
- 56
- Observer
- TS
- Reading
- all checks consistent
- File
- 19840119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAE – 4 | -12 | 55°W | 276 | 58W | 3° | 7) |
| 2 | DKO – 6 | -16 | 37W | 258 | 40W | 13 | 8) |
| 3 | ARX – 4 | -4 | 43E | 178 | 40E | 2 | 9) |
| 4 | AXX – 2 | -16 | 48E | 173 | 45E | 1 | 10) |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.