Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 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)
- 66
- Relative number (R)
- 116
- Observer
- MB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKC – 38 | 15 | 25W | 115 | 28W | 18.5 | 252 |
| 2 | BXO – 7 | 8 | 24W | 43 ⚠ | 27W | 10 | 253 |
| 3 | HR – 2 | 5 | 36E | 54 | 33E | 0.5 | 258 |
| 4 | EKC – 17 | -12 | 63E | 27 | 60E | 15 | 261 |
| 5 | ? – 2 | -11 | 73E | 17 | 70E | 2 | 262 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.