今日肉眼可見太陽黑子在日中央

C.L.Chan

若你用太陽的瀘光片，[img]今日肉眼可以看到一顆太陽黑子在日中央]。
The Sun, 2014/02/03 UT : 01h48m
Telescope: Astro Physics, Star 12 ED, D=12cm, stop down to 76mm, F.L.=102cm, Prime Focus,
Thousand Oaks Glass solar filter ND5.
Losmandy G-11 Equatorial Mount with motor drive.
Canon EOS 300D camera, ISO 100, 1/4000 sec exposure. Atmospheric Transparent : 8/10, Seeing : 8/10.
Equipment borrowed from H.C.Ng.