Daily Sunspot Evaluation
Observation Sheet Monday, 28 June 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)
- 5
- Number of spots (f)
- 49
- Relative number (R)
- 99
- Observer
- MB
- Reading
- all checks consistent
- File
- 19930628.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 9 | 2 | 52W | 123 | 55W | 4.5 | 162 |
| 2 | AX – 2 | 2 | 66E | 5 | 63E | 1 | 166 |
| 3 | HH – 6 | -13 | 11E | 60 | 08E | 3.5 | 163 |
| 4 | EAC – 30 | -11 | 41E | 30 | 38E | 12 | 164 |
| 5 | AX – 2 | -15 | 60E | 11 | 51E | 2 | 167 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.