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spectroheliographic
spectroheliographic adj.
Brit. 
/ˌspɛktrə(ʊ)hiːlɪəˈɡrafɪk/
, /ˌspɛktrə(ʊ)hiːlɪəˈɡrafɪk/U.S. /ˌspɛktroʊˌhiliəˈɡræfɪk/
/ˌspɛktroʊˌhiliəˈɡræfɪk/ΘΚΠ
the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [adjective] > stars
siderostatic1879
spectroheliographic1905
1905 Athenæum 29 Apr. 535/2 Spectroheliographic Results explained by Anomalous Dispersion.
1905 Astrophysical Jrnl. 21 279 Our new explanation of the spectroheliographic results will be founded on the hypothesis that the sun is an unlimited mass of gas in which convection currents..are continually forming.
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