Daily Sunspot Evaluation
Observation Sheet Monday, 4 October 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)
- 8
- Number of spots (f)
- 47
- Relative number (R)
- 127
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19991004.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 13 | 13E | 84 | 10E | ~1 | |
| 2 | HK – 7 | 21 | 56E | 41 | 53E | 8 | Cko-7 |
| 3 | HA – 3 | 17 | 60E | 37 | 57E | 1 | |
| 4 | CAO – 6 | 13 | 64E | 33 | 61E | 10 | |
| 5 | CAO – 5 | -28 | 02E | 95 | 89W | 5 | |
| 6 | DAC – 10 | -21 | 50E | 47 | 47E | 10 | Dai-10 |
| 7 | DAC – 13 | -19 | 56E | 41 | 53E | 9 | Dai-13 |
| 8 | HA – 2 | -20 | 65E | 32 | 62E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.