Daily Sunspot Evaluation
Observation Sheet Thursday, 11 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)
- 60
- Relative number (R)
- 120
- Observer
- TA
- Reading
- all checks consistent
- File
- 19930311.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 2 | 9 | 26W | 98 | 29W | 1.5 | 57 |
| 2 | BXI – 5 | 10 | 04W | 76 | 07W | 3.5 | 58 |
| 3 | BXO – 2 | 14 | 67E | 5 | 64E | 3 | 61 |
| 4 | ? – 1 | 16 | 79E | 353 | 76E | - | 60 |
| 5 | FKO – 39 | -6 | 33W | 105 | 36W | 16.5 | 54 |
| 6 | CRI – 11 | -8 | 13W | 85 | 16W | 7 | 59 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.