|Is 90/0656 almost dead?|
|Sunspot group 06 (NOAA 0667) is just an old acquaintance, formerly known as 90/0656. Last rotation, the group was so big you could see it on the solar disk with the naked eye. The pictures beneath show what is left of the group.|
|Nederlandstalige versie / Version française||posted: Sept 3, 2004|
Sunspot group 90 (NOAA 0656) produced in total 2 X-flares. An X1.0 flare on August 13 was reported to come from this region. Just before turning over the west limb, the group produced an X1.8 flare on August 18. In the period from August 6 when it first appeared on the east limb, until August 10, the spot grew from a simple 'alpha' configuration to a 'beta-gamma-delta' active region with a complex magnetic configuration. Nowadays, the group made its first re-appearance on the east limb as sunspot group 06 (NOAA 0667). So far, a large leader spot and a few small spots are visible. Its looks so far reveal only an 'alpha' label, less glorious and impressing as the former 'beta-gamma-delta' configuration. The global X-ray background emission, as measured by the satellite GOES, remains low at around the B1 level. Up till now, the sunspot group did not release any noticeable flare. Both facts indicate that the group has decayed significantly compared to its previous rotation.