Daily Sunspot Evaluation
Observation Sheet Sunday, 19 July 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)
- 5
- Number of spots (f)
- 26
- Relative number (R)
- 76
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19920719.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 13 | 23 | 20W | 311 | 23W | 9 | 273 |
| 2 | DAO – 5 | 15 | 31E | 260 | 28E | 3 | 272 |
| 3 | HA – 3 | -25 | 71W | 2 | 74W | 3.5 | 265 |
| 4 | HA – 2 | -10 | 44W | 335 | 47W | 1 | 264 |
| 5 | AX – 3 | -15 | 02E | 289 | 01W | 2.5 | 276 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.