Daily Sunspot Evaluation
Observation Sheet Sunday, 2 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)
- 15
- Number of spots (f)
- 87
- Relative number (R)
- 237
- Observer
- HE
- Reading
- all checks consistent
- File
- 19910602.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 14 | 68W | 52 | 11W | 2.5 | 259 |
| 2 | EKO – 13 | 22 | 63W | 47 | 66W | 15 | 245 |
| 3 | BRI – 9 | 10 | 08W | 352 | 11W | 4 | 245 |
| 4 | CKI – 14 | 6 | 05W | 349 | 08W | 7.5 | 253 |
| 5 | AX – 3 | 8 | 01E | 343 | 02W | 2 | 254 |
| 6 | HA – 4 | 8 | 62E | 282 | 59E | 4.5 | 266 |
| 7 | EKO – 7 | 20 | 64E | 280 | 61E | 12.5 | 260 |
| 8 | HA – 1 | 8 | 75E | 269 | 72E | 2 | 267 |
| 9 | HS – 1 | -14 | 36W | 20 | 39W | 2 | 243 |
| 10 | DAO – 13 | -14 | 29W | 13 | 32W | 9 | 261 |
| 11 | HK – 8 | -10 | 15W | 357 | 16W | 5.5 | 252 |
| 12 | AX – 1 | -5 | 02W | 346 | 05W | 263 | |
| 13 | BXO – 2 | -12 | 07E | 337 | 04E | 2.5 | 268 |
| 14 | BRO – 8 | -10 | 27E | 317 | 24E | 6.5 | 264 |
| 15 | AX – 1 | -40 | 60E | 284 | 57E | 242 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.