Daily Sunspot Evaluation
Observation Sheet Thursday, 22 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)
- 6
- Number of spots (f)
- 56
- Relative number (R)
- 116
- Observer
- TK
- Reading
- all checks consistent
- File
- 19930422.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 6 | 02W | 240 | 05W | 0.5 | 56 |
| 2 | DAC – 23 | 11 | 09E | 229 | 06E | 9.5 | 53 |
| 3 | CRS – 13 | -14 | 13W | 251 | 16W | 8.5 | 59 |
| 4 | AX – 2 | -10 | 05W | 243 | 08W | 1 | 100 |
| 5 | CAO – 16 | -14 | 27E | 211 | 24E | 8 | 52E |
| 6 | S – 1 | -24 | 83E | 155 | 80E | - | 101 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.