Daily Sunspot Evaluation
Observation Sheet Tuesday, 21 February 1995
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)
- 4
- Number of spots (f)
- 34
- Relative number (R)
- 74
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19950221.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 8 | 85W | 118 | 87W | - | 13 |
| 2 | BAO – 8 | 11 | 12E | 21 | 105 | 6 | 18 |
| 3 | AX – 1 | -9 | 78W | 111 | 80W | - | 19 |
| 4 | EAC – 24 | -15 | 02W | 35 | 09W | 15 | 16 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.