Daily Sunspot Evaluation
Observation Sheet Tuesday, 6 April 1993
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)
- 49
- Relative number (R)
- 119
- Observer
- HE
- Reading
- all checks consistent
- File
- 19930406.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 3 | 7 | 73W | 162 | 76W | 2 | 79 |
| 2 | CAO – 3 | -20 | 67W | 156 | 70W | 9 | 89 |
| 3 | HA – 1 | -12 | 54W | 143 | 57W | 1 | 84 |
| 4 | HS – 3 | -4 | 22W | 111 | 25W | 3.5 | 82 |
| 5 | DAR – 16 | -8 | 17W | 106 | 20W | 5 | 88 |
| 6 | ESI – 22 | -11 | 10E | 79 | 07E | 11 | 86 |
| 7 | HR – 1 | -8 | 20E | 69 | 17E | 0.5 | 87 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.