cavemannctu: 2017 Jupiter Opposition 木星衝
cavemannctu: The 9-Day-Old Moon 月齡九日
cavemannctu: Rho Ophiuchi & its neighbors 星空調色盤
cavemannctu: The Tail of Cygnus Wide-field 白鳥座尾部星野
cavemannctu: M31-Andromeda Galaxy 仙女座星系
cavemannctu: Zodiacal Light in Autumn 秋季黃道光
cavemannctu: Partial lunar eclipse 2019 July 16 seen from Taiwan
cavemannctu: Conjunction of Venus and Jupiter 2019 November 24 金星合木星
cavemannctu: 木金月土連線
cavemannctu: 木金月土連線
cavemannctu: Partial eclipse 2019 December 26 seen from Taiwan
cavemannctu: 20191226日南國中日偏食記錄
cavemannctu: Annular Eclipse 2020 June 21
cavemannctu: Annular eclipse 2020 June 21 seen from Taiwan
cavemannctu: Lunar Limb
cavemannctu: C/2020 F3 NEOWISE
cavemannctu: C/2020 F3 NEOWISE
cavemannctu: Moon-Shadow-During-Eclipse
cavemannctu: Sunspots
cavemannctu: C2023 A3 Tsuchinshan-ATLAS