Daily Sunspot Evaluation
Observation Sheet Friday, 23 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)
- 86
- Relative number (R)
- 156
- Observer
- TA
- Reading
- all checks consistent
- File
- 19930423.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 2 | 10 | 38W | 263 | 41W | 2.5 | 102 |
| 2 | AX – 2 | 6 | 17W | 242 | 20W | 0.5 | 86 |
| 3 | DAC – 34 | 11 | 06W | 231 | 09W | 9 | 92 |
| 4 | DRS – 18 | -14 | 27W | 252 | 30W | 9.5 | 97 |
| 5 | CAI – 9 | -10 | 18W | 243 | 21W | 5 | 100 |
| 6 | DRS – 18 | -13 | 12E | 213 | 09E | 5.5 | 92 |
| 7 | HA – 3 | -21 | 6+E | 158 | 64E | 2 | 101 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.