Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 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)
- 9
- Number of spots (f)
- 143
- Relative number (R)
- 233
- Observer
- TA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920715.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 5 | 4 | 56W | 40 | 59W | 25 | 273 |
| 2 | CRO – 12 | 9 | 25E | 319 | 22E | 10 | 268 |
| 3 | DAI – 15 | 23 | 32E | 312 | 29E | 7 | 270 |
| 4 | ? – 2 | 14 | 63E | 261 ⚠ | 80E | - | 272 |
| 5 | HK – 15 | -12 | 45W | 29 | 48W | 7 | 261 |
| 6 | FKC – 67 | -11 | 29W | 13 | 32W | 18 | 262E |
| 7 | DAI – 21 | -23 | 18W | 2 | 21W | 8 | 265 |
| 8 | HA – 2 | -10 | 09E | 335 | 06E | 2 | 269 |
| 9 | BXO – 4 | -16 | 56E | 287 | 53E | 4 | 271 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.