Daily Sunspot Evaluation
Observation Sheet Monday, 17 July 2000
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)
- 14
- Number of spots (f)
- 165
- Relative number (R)
- 305
- Observer
- HE
- Reading
- all checks consistent
- File
- 20000717.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FAI – 41 | 7 | 38W | 311 | 41W | 15 | |
| 2 | DAI – 22 | 19 | 17W | 287 | 20W | 6 | |
| 3 | BIO – 3 | 27 | 10W | 280 | 13W | 6 | |
| 4 | CSO – 6 | 3 | 02W | 272 | 05W | 8 | |
| 5 | CAI – 21 | 20 | 01W | 271 | 04W | 7 | |
| 6 | EKE – 20 | 14 | 17E | 253 | 14E | 15 | |
| 7 | ? – 14 | 13 | 69E | 201 | 66E | 17 | |
| 8 | CRO – 11 | -12 | 37W | 307 | 40W | 6 | |
| 9 | HS – 1 | -28 | 28W | 298 | 31W | 1 | |
| 10 | HR – 3 | -27 | 03W | 273 | 06W | 2 | |
| 11 | AX – 2 | -12 | 17E | 253 | 14E | 2.5 | |
| 12 | DKC – 16 | -11 | 39E | 231 | 36E | 9 | |
| 13 | CRO – 4 | -6 | 64E | 206 | 61E | 6 | |
| 14 | ? – 1 | -24 | 75E | 195 | 74E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.