Sodium in all its states !

Sodium in all its states !

Sodium in all its states ! Recommended equipment : Lhires III, eShel Time : 1h Sodium element has a nice spectral signature with two narrow lines in the yellow. Those lines, D1 & D2, are at wavelength 589.00nm and 589.59nm, split by about 6 angstroems only. You...
Solar spectrum (visual)

Solar spectrum (visual)

Solar spectrum (visual) Recommended equipment: Lhires III, Lhires Lite Time: 1h It works every time: anyone watching the solar spectra in hig resolution enjoy it -it is magical! and it’s easy: you just have to direct the Lhires III, without a telescope, directly...