太阳黑子—窄带CaK 3nm（7-26）

太阳黑子—窄带CaK 3nm
Sunspot in CaK
2024-07-26
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Askar 120mm F7
Apollo-M mini IMX429
Antlia 5X barlow
#Antliafilter dualband ERF filter 2"
Antlia 3nm CaK filter
4% 3000 frame ​​​

• 镜头/望远镜: Askar 120mm APO
• 相机: Apollo-M mini IMX429
• 赤道仪: AM5
• 滤镜: Antlia Solar Discover 3nm CaK