No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 10, 1999. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8630 | S10 | W55 | 05 | 0020 | BETA | Jul 7, 1999 | Jul 14, 1999 | Jul 27, 1999 |
| № 8629 | N23 | W70 | 07 | 0090 | BETA | Jul 6, 1999 | Jul 13, 1999 | Jul 26, 1999 |
| № 8628 | N18 | E52 | 03 | 0030 | BETA | Jul 15, 1999 | Jul 22, 1999 | Aug 5, 1999 |
| № 8627 | S13 | E61 | 04 | 0090 | BETA | Jul 16, 1999 | Jul 22, 1999 | Aug 5, 1999 |
| № 8626 | S21 | W43 | 12 | 0100 | BETA | Jul 8, 1999 | Jul 15, 1999 | Jul 28, 1999 |
| № 8625 | S20 | E36 | 01 | 0040 | ALPHA | Jul 14, 1999 | Jul 21, 1999 | Aug 3, 1999 |
| № 8624 | N24 | W14 | 04 | 0000 | BETA | Jul 10, 1999 | Jul 17, 1999 | Jul 31, 1999 |
| № 8620 | N21 | W22 | 03 | 0080 | BETA | Jul 9, 1999 | Jul 16, 1999 | Jul 30, 1999 |
| № 8615 | S29 | W28 | 07 | 0180 | BETA | Jul 9, 1999 | Jul 16, 1999 | Jul 30, 1999 |
| № 8614 | N18 | W39 | 10 | 0220 | BETA | Jul 8, 1999 | Jul 15, 1999 | Jul 29, 1999 |
| № 8611 | S25 | W96 | 04 | 0170 | BETA | Jul 4, 1999 | Jul 11, 1999 | Jul 24, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to July 1999. The gray background is the average SSN index.
