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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8260 | S21 | E74 | 01 | 0040 | ALPHA | Jul 5, 1998 | Jul 12, 1998 | Jul 25, 1998 |
| № 8259 | N25 | E73 | 02 | 0010 | ALPHA | Jul 5, 1998 | Jul 12, 1998 | Jul 26, 1998 |
| № 8258 | S16 | E54 | 02 | 0070 | BETA | Jul 3, 1998 | Jul 10, 1998 | Jul 24, 1998 |
| № 8257 | N29 | W32 | 05 | 0010 | BETA | Jun 26, 1998 | Jul 4, 1998 | Jul 18, 1998 |
| № 8256 | S25 | E46 | 03 | 0070 | BETA | Jul 3, 1998 | Jul 10, 1998 | Jul 23, 1998 |
| № 8255 | S22 | E26 | 07 | 0080 | BETA | Jul 1, 1998 | Jul 8, 1998 | Jul 22, 1998 |
| № 8253 | N17 | E12 | 24 | 0220 | BETA | Jun 30, 1998 | Jul 7, 1998 | Jul 20, 1998 |
| № 8249 | S28 | W80 | 01 | 0040 | ALPHA | Jun 23, 1998 | Jun 30, 1998 | Jul 14, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to June 1998. The gray background is the average SSN index.
