Because the spectrometer says so, mainly. Why?
Comment on But I am mighty!!
AES_Enjoyer@reddthat.com 1 day agoWhy exactly do you think there is UV radiation coming from the sun?
LH0ezVT@sh.itjust.works 15 hours ago
AES_Enjoyer@reddthat.com 11 hours ago
Hahaha that’s a good one
NikkiDimes@lemmy.world 14 hours ago
The nuclear reactions occurring within the sun emit a wide spectrum of radiation, everything from sub-visible thermal radiation to high energy gamma rays. Thankfully, the Earth’s own electromagnetic field and ozone protects us from all but a tiny sliver of ionizing radiation or we wouldn’t be here to talk about it.
AES_Enjoyer@reddthat.com 11 hours ago
Isn’t most of that radiation blocked by the outer layers of the sun, though? Like, sure, there is a non-negligible amount of high energy photons escaping, but the overwhelming majority of the radiation comes AFAIK from blackbody radiation from the plasma at the temperature of the surface of the sun?