Daily Sunspot Evaluation
Observation Sheet Sunday, 12 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)
- 63
- Relative number (R)
- 153
- Observer
- NA
- Reading
- all checks consistent
- File
- 19920712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 16 | 83W | 107 | 86W | - | 252 |
| 2 | AX – 1 | 24 | 71E | 313 | 67E | - | 270 |
| 3 | HA – 1 | 11 | 67E | 317 | 64E | 2 | 268 |
| 4 | AX – 1 | -16 | 66W | 90 | 69W | - | 263 |
| 5 | AX – 2 | -12 | 48W | 72 | 51W | 3 | 267 |
| 6 | DKC – 19 | -12 | 05W | 29 | 08W | 10 | 261 E |
| 7 | EKC – 35 | -11 | 11E | 13 | 08E | 4.5 | 262 |
| 8 | HA – 2 | -24 | 21E | 3 | 18E | 1.5 | 265 |
| 9 | HA – 1 | -10 | 49E | 335 | 46E | 2 | 269 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.