サザビーズのインスタグラム(sothebys) - 4月21日 22時09分

Stargazing with the oldest known #astrolabe from Muslim #Spain: Made in 1020 AD, this elaborate instrument is an important new witness to the vibrant scientific tradition in the region. Representing a #celestial sphere as viewed on a flat scale, the astrolabe has been used since the eighth century to calculate solar and stellar altitudes, in #navigation, and to precisely read time. On view in our #London galleries all weekend ahead of Wednesday's auction. #Stars #Astronomy

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する