Daily Sunspot Evaluation
Observation Sheet Tuesday, 23 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)
- 6
- Number of spots (f)
- 29
- Relative number (R)
- 89
- Observer
- MB
- Reading
- all checks consistent
- File
- 19930323.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 4 | 17 | 78W | 350 | 79W | - | 60 |
| 2 | DRO – 5 | 10 | 30W | 302 | 31W | 0.4 | 74 |
| 3 | HA – 2 | -16 | 27W | 299 | 28W | 1.5 | 63 |
| 4 | HR – 1 | -18 | 14W | 286 | 15W | 0.5 | 66 |
| 5 | CAO – 16 | -12 | 09W | 281 | 10W | 1.1 | 65 |
| 6 | AX – 1 | -12 | 17E | 255 | 16E | - | 73 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.