Daily Sunspot Evaluation
Observation Sheet Friday, 23 April 1999
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)
- 3
- Number of spots (f)
- 32
- Relative number (R)
- 62
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19990423.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 6 | 23 | 51W | 157 | 54W | 7 | |
| 2 | CRI – 11 | -21 | 39W | 145 | 42W | ~8 | |
| 3 | CAI – 15 | -15 | 01W | 107 | 04W | ~5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.