Astron. [f. CHROMATO- + SPHERE.] = CHROMOSPHERE.
1871. Proctor, Light Sc., 97. The objectionable word chromosphere (for chromatosphere) should be replaced by sierra.
1879. Prof. Young, in H. W. Warren, Recr. Astron., v. 87. With some bright streamers low down near the chromatosphere.
Hence Chromatospheric a.
1872. Prof. Young, in Proctor, Orbs around us, 309. Chromatospheric matter (red hydrogen in this case).