Daily Sunspot Evaluation
Observation Sheet Saturday, 20 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)
- 19
- Relative number (R)
- 69
- Observer
- HE
- Reading
- counts consistent, some coordinates doubtful
- File
- 19980620.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 35 | 52W | 247 | 54W | 1 | 105.593 |
| 2 | HR – 2 | 15 | 30W | 225 | 32W | 1 | 114.145 |
| 3 | DSO – 12 | 17 | 46W | 211 ⚠ | 18W | 5 | 106.495 |
| 4 | BXO – 2 | -30 | 07E | 188 | 05E | 35 | 115.443 |
| 5 | HS – 1 | -28 | 20E | 170 ⚠ | 18E | 2 | 100.115 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.