Daily Sunspot Evaluation
Observation Sheet Sunday, 19 January 1992
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)
- 7
- Number of spots (f)
- 21
- Relative number (R)
- 91
- Observer
- HE
- Reading
- all checks consistent
- File
- 19920119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 1 | 13 | 09W | 182 | 11W | 0.5 | 24 |
| 2 | BXI – 4 | 17 | 23E | 150 | 21E | 5° | 32 |
| 3 | CRO – 4 | 2 | 75E | 98 | 73E | 10° | 31 |
| 4 | AX – 3 | -7 | 32W | 205 | 34W | 2.5 | 33 |
| 5 | HH – 1 | -10 | 23W | 196 | 25W | 3° | 22 |
| 6 | BXO – 6 | -12 | 28E | 145 | 26E | 6.5 | 23 |
| 7 | ? – 2 | -16 | 77E | 96 | 75E | 11° | 30 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.