Glass positive:- Spectroheliogram (black-and-white transparencies; astrophotographs; Sun; prominences; chromosphere)
Glass positive:- Spectroheliogram (black-and-white transparencies; astrophotographs; Sun; prominences; chromosphere)
Glass positive:- Spectroheliogram (black-and-white transparencies; astrophotographs; Sun; prominences; chromosphere)
Glass positive:- spectroheliogram (black-and-white transparencies; astrophotographs; Sun; prominences; chromosphere)
Glass positive:- very high eruptive prominence (black-and-white transparencies; astrophotographs; solar corona; Sun; solar prominences; solar chromosphere)
