Daily Sunspot Evaluation
Observation Sheet Thursday, 15 July 1993
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)
- 32
- Relative number (R)
- 82
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19930715.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 5 | 8 | 51W | 257 | 54W | 4 | 180 |
| 2 | AX – 4 | 3 | 27W | 233 | 30W | 2 | 183 |
| 3 | CAI – 8 | 6 | 13E | 193 | 10E | 4 | 185 |
| 4 | ? – 1 | 8 | 85E | 121 | 82E | - | 186 |
| 5 | DAI – 14 | -9 | 15W | 221 | 18W | 8 | 182 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.