Daily Sunspot Evaluation
Observation Sheet Tuesday, 13 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)
- 27
- Relative number (R)
- 77
- Observer
- HE
- Reading
- counts consistent, some coordinates doubtful
- File
- 19930713.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 10 | 8 | 28W | 256 ⚠ | 26W | 5.5 | 180 |
| 2 | CRO – 7 | 4 | 02E | 231 | 01W | 5.5 | 183 |
| 3 | CRO – 3 | 7 | 41E | 192 | 38E | 5 | 185 |
| 4 | CRO – 6 | -10 | 14E | 219 | 11E | 4 | 182 |
| 5 | AX – 1 | -8 | 46E | 187 | 43E | - | 184 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.