Daily Sunspot Evaluation
Observation Sheet Saturday, 1 June 1991
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)
- 12
- Number of spots (f)
- 101
- Relative number (R)
- 221
- Observer
- TA
- Reading
- all checks consistent
- File
- 19910601.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 15 | 56W | 53 | 58W | 3.5 | 259 |
| 2 | EKO – 15 | 22 | 51W | 48 | 53W | 13.5 | 245 |
| 3 | BXO – 8 | 10 | 05E | 352 | 03E | 3 | 265 |
| 4 | DAC – 24 | 6 | 09E | 348 | 07E | 8 | 253 |
| 5 | AR – 2 | 7 | 15E | 342 | 13E | 1.5 | 254 |
| 6 | EKO – 4 | 19 | 76E | 281 | 74E | 12 | 260 |
| 7 | HA – 4 | 8 | 76E | 281 | 74E | 4 | 266 |
| 8 | HS – 1 | -14 | 23W | 20 | 25W | 2 | 249 |
| 9 | DAO – 16 | -13 | 16W | 13 | 18W | 7 | 261 |
| 10 | HK – 15 | -10 | 00 | 357 | 02W | 6 | 252 |
| 11 | AX – 2 | -5 | 09E | 348 | 07E | 0.5 | 263 |
| 12 | BXO – 7 | -11 | 40E | 317 | 38E | 5 | 264 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.