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Michael Teoh

Location of Photo:

Heng Ee Observatory, Penang, Malaysia

Date/Time of photo:

May 12, 2024, 0245 UT


APM-TMB 228/2050 Telescope, Lunt Solar Wedge, Baader ND filter OD 3.0, Baader Solar Continuum 540nm filter, GSO 2x Barlow, QHY5III678M Camera


The active region AR3664 is one of the largest sunspot groups in recent years. It is also very active, given off multiple X-class solar flares over the past week. The sunspot group had continued to grow since it first emerged, and had showed complex structures. This image was taken one day before it turned over the limb, going to the far side of the Sun.