Sun - 4.6.2021 at 13.55 Järvenpää
Observation number 98663
I photographed the spectrum of the Sun on a smartphone through a spectroscope. I built the spectroscope myself and the piece of CD-R acts as a reflection grid.
The spectrum is not very sharp, but many Fraunhofer lines seem to stand out from it, e.g. one Balmer line (hydrogen, ca. 486 nm), iron (ca. 527 nm) and sodium (ca. 589 nm).