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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 1, 1998. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8264 | N18 | E74 | 01 | 0100 | ALPHA | Jul 8, 1998 | Jul 15, 1998 | Jul 28, 1998 |
| № 8263 | S19 | E67 | 01 | 0150 | ALPHA | Jul 7, 1998 | Jul 14, 1998 | Jul 28, 1998 |
| № 8260 | S22 | E44 | 13 | 0210 | BETA | Jul 5, 1998 | Jul 12, 1998 | Jul 26, 1998 |
| № 8259 | N27 | E37 | 05 | 0040 | BETA | Jul 5, 1998 | Jul 12, 1998 | Jul 26, 1998 |
| № 8258 | S13 | E11 | 01 | 0060 | ALPHA | Jul 3, 1998 | Jul 10, 1998 | Jul 23, 1998 |
| № 8257 | N28 | W68 | 01 | 0030 | ALPHA | Jun 27, 1998 | Jul 4, 1998 | Jul 18, 1998 |
| № 8256 | S24 | E04 | 03 | 0010 | BETA | Jul 2, 1998 | Jul 9, 1998 | Jul 23, 1998 |
| № 8255 | S23 | W16 | 04 | 0060 | BETA | Jul 1, 1998 | Jul 8, 1998 | Jul 22, 1998 |
| № 8253 | N17 | W29 | 08 | 0120 | BETA | Jun 30, 1998 | Jul 7, 1998 | Jul 20, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to July 1998. The gray background is the average SSN index.
