Daily Sunspot Evaluation
Observation Sheet Friday, 16 July 2004
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)
- 7
- Number of spots (f)
- 58
- Relative number (R)
- 128
- Observer
- MB
- Reading
- all checks consistent
- File
- 20040716.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 16 | 57W | 137 | 59W | - | 136 |
| 2 | HS – 4 | 12 | 01E | 79 | 01W | ~4.5 | 131 |
| 3 | CAI – 10 | -7 | 48W | 128 | 50W | 5 | 126 |
| 4 | AX – 2 | -8 | 12E | 67 | 18E | 2 | 135 |
| 5 | AX – 2 | -12 | 22E | 58 | 20E | 1 | 140 |
| 6 | BAO – 5 | -16 | 27E | 53 | 25E | ~6 | 158 |
| 7 | FKI – 34 | -10 | 37E | 43 | 35E | ~18.5 | 139 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.