Sun Spot
..............................................................................
- Telescope : Takahashi FCT-100, f/6.4
- Corrector : none
- Camera : ZWO ASI 174MM
- Mount : Rainbow Astro RST-135
- Tripod : Photoclam Astro 44
- Guide Telescope : None
- Guide Camera : none
- Filter : Thousand Oaks film filter
- Exposure : 0.08ms, 2000 frame
- Date/Time : 19. Dec. 2021./ 11:43~(KST)
- Location : my home, Daejeon, South Korea
- SQM-L : **
NASA의 오늘자 태양(12월 20일)
https://sohowww.nascom.nasa.gov/data/synoptic/sunspots_earth/mdi_sunspots_1024.jpg
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