Daily Sunspot Evaluation
Observation Sheet Tuesday, 22 September 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)
- 8
- Number of spots (f)
- 68
- Relative number (R)
- 148
- Observer
- HE
- Reading
- all checks consistent
- File
- 19980922.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 9 | -18 | 08E | 25 | 06E | 8 | 215 2+4 |
| 2 | HS – 1 | 31 | 15E | 18 | 13E | 1.5 | 214 2+3 |
| 3 | DKC – 23 | 20 | 21E | 12 | 19E | 9.5 | 215 2+4 |
| 4 | CRO – 6 | 39 | 34E | 359 | 32E | 6 | 219 2+8 |
| 5 | HR – 1 | -21 | 60W | 93 | 62W | 4 | 220 2+5 |
| 6 | DRO – 17 | -30 | 18W | 51 | 20W | 9.5 | 213 2+2 |
| 7 | CSO – 6 | -16 | 16W | 49 | 18W | 12 | 216 2+3 |
| 8 | DRI – 5 | -21 | 32E | 1 | 30E | 5 | 220 2+8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.