Daily Sunspot Evaluation
Observation Sheet Monday, 28 February 1994
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)
- 26
- Relative number (R)
- 66
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19940228.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 2 | 2 | 08W | 87 | 11W | 4 | 34 |
| 2 | CAO – 7 | -19 | 10E | 69 | 07E | 4.5 | 33 |
| 3 | CSO – 4 | -14 | 32E | 47 | 29E | 5 | 31 |
| 4 | DAO – 13 | -12 | 61E | 18 | 58E | 5 | 32 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.