Daily Sunspot Evaluation
Observation Sheet Thursday, 25 March 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)
- 21
- Relative number (R)
- 71
- Observer
- TA
- Reading
- all checks consistent
- File
- 19930325.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 11 | 58W | 305 | 61W | 5 | 74 |
| 2 | AX – 4 | 12 | 18W | 265 | 21W | 1.5 | 75 |
| 3 | BXO – 3 | 21 | 55E | 192 | 52E | 5.5 | 77 |
| 4 | HA – 10 | -11 | 39W | 286 | 42W | 4 | 65 |
| 5 | AX – 1 | -13 | 31W | 278 | 34W | - | 78 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.