Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 April 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)
- 7
- Number of spots (f)
- 35
- Relative number (R)
- 105
- Observer
- HE
- Reading
- all checks consistent
- File
- 19930427.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 7 | 76W | 248 | 79W | - | 108 |
| 2 | DAC – 10 | 12 | 60W | 232 | 63W | 7 | 93 |
| 3 | DSO – 7 | 8 | 43E | 129 | 40E | 9 | 103 |
| 4 | ? – 5 | -13 | 78W | 250 | 81W | 9 | 59 |
| 5 | AX – 3 | -15 | 41W | 213 | 44W | 1.5 | 92 |
| 6 | DRO – 6 | -13 | 19E | 153 | 16E | 3 | 107 |
| 7 | ? – 3 | -11 | 82E | 90 | 79E | 3 | 106 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.