Daily Sunspot Evaluation
Observation Sheet Monday, 5 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)
- 4
- Number of spots (f)
- 50
- Relative number (R)
- 90
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19990405.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 8 | 11 | 41E | 302 | 34E | 8 | |
| 2 | DAO – 12 | 20 | 61E | 282 | 58E | 9 | |
| 3 | DHC – 21 | -27 | 18W | 1 | 21W | 9 | DKO |
| 4 | CSO – 9 | -29 | 05W | 348 | 08W | 3.5 | HA-8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.