Daily Sunspot Evaluation
Observation Sheet Saturday, 30 June 1990
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)
- 16
- Number of spots (f)
- 183
- Relative number (R)
- 343
- Observer
- HE
- Reading
- all checks consistent
- File
- 19900630.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AR – 3 | 14 | 55W | 167 | 59W | 3 | 273 |
| 2 | BXO – 4 | 22 | 42W | 154 | 46W | 5.5 | 275 |
| 3 | HS – 1 | 27 | 32W | 144 | 36W | 2 | 262 |
| 4 | BRI – 10 | 5 | 03W | 115 | 07W | 8 | 269 |
| 5 | CAI – 11 | 11 | 15E | 97 | 11E | 6 | 273 |
| 6 | DKC – 31 | 8 | 31E | 81 | 27E | 9.5 | 276 |
| 7 | DKC – 17 | 17 | 66E | 46 | 62E | 11 | 280 |
| 8 | CAI – 7 | -8 | 54W | 166 | 58W | 5 | 279 |
| 9 | BXI – 3 | -42 | 21W | 133 | 25W | 4.5 | 282 |
| 10 | FKI – 29 | -22 | 09W | 121 | 13W | 17.5 | 266 |
| 11 | CAO – 22 | -12 | 23E | 89 | 19E | 6.5 | 274 |
| 12 | BXI – 5 | -12 | 32E | 80 | 28E | 5.5 | 283 |
| 13 | ESC – 26 | -22 | 37E | 75 | 33E | 12 | 277 |
| 14 | CAI – 8 | -14 | 42E | 70 | 38E | 4 | 281 |
| 15 | EAI – 5 | -29 | 58E | 54 | 54E | 11 | 278 |
| 16 | AX – 1 | -17 | 65E | 47 | 61E | - | 284 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.