C/2023 P1 (Nishimura), 2023/08/28.8019, 32*60s, 20cmF8 RC x0.75RD, ASI294MC Pro (Bin=1, Gain=390, Temp=0), Square Crop, mag=7.6(SI9) 関連ブログ記事: https://kem4.cocolog-nifty.com/blog/2023/08/post-a9ab15.html 関連動画: https://www.youtube.com/watch?v=FHO_pgpXuA0