en spectroheliograph (n)
― RelatedTo ⟶
Weight: 1.0
en wavelength Source: English Wiktionary
en spectroheliograph (n)
― RelatedTo ⟶
Weight: 1.0
en instrument Source: English Wiktionary
en spectroheliograph (n)
― RelatedTo ⟶
Weight: 1.0
en sun Source: English Wiktionary
en spectroheliograph (n)
― RelatedTo ⟶
Weight: 1.0
en photograph Source: English Wiktionary
en spectroheliograph (n)
― RelatedTo ⟶
Weight: 1.0
en monochromatic Source: English Wiktionary