Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 June 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)
- 13
- Number of spots (f)
- 73
- Relative number (R)
- 203
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19990609.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 14 | 85W | 288 | 83W | - | |
| 2 | CSI – 7 | 19 | 42W | 245 | 46W | 3.5 | |
| 3 | EAC – 25 | 29 | 03W | 206 | 05W | 12 | Erc-25 |
| 4 | DAC – 4 | 19 | 01W | 204 | 03W | 6 | |
| 5 | AX – 1 | 13 | 02E | 201 | 00 | - | |
| 6 | EAC – 10 | 19 | 15E | 188 | 13E | 012.5 | |
| 7 | CSO – 3 | 11 | 19E | 184 | 13E | 4 | |
| 8 | CSO – 2 | -14 | 31W | 234 | 33W | 1.5 | H-2 |
| 9 | HA – 1 | -13 | 19E | 186 | 15E | ~2 | Hs-1 |
| 10 | DSF – 16 | -18 | 19E | 184 | 17E | 6 | Dao-26 |
| 11 | AX – 1 | -29 | 18E | 185 | 16E | - | |
| 12 | AX – 1 | -34 | 21E | 182 | 19E | - | |
| 13 | HA – 1 | -20 | 76E | 129 | 74E | 6.5 | Hk-1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.