Daily Sunspot Evaluation
Observation Sheet Friday, 19 June 1998
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)
- 16
- Relative number (R)
- 66
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19980619.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 5 | 35 | 39W | 248 | 42W | 5 | 105 198 |
| 2 | AX – 3 | 15 | 13W | 222 | 16W | 1.5 | 114 22 |
| 3 | HS – 6 | 17 | 04W | 213 | 07W | 3.5 | 106 505 |
| 4 | AX – 1 | -22 | 29W | 238 | 32W | 103 585 | |
| 5 | HS – 1 | -28 | 33E | 176 | 30E | 2 | 112 45 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.