00674nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 084.4:523.74 WAL Wallace, L. 17424 An atlas of the sunspot umbral spectrum in the red and infrared from 8900 to 15,050 cm-1 (6642 to 11,230 A) L. Wallace…[et al.] Tucson National Optical Astronomy Observatories 1998 [various pagings.] Atlas-Sunspots, Sunspots-Atlas 22378 Bernath, P. F. 19928 Ram, R. S. 22379 BK 12774 12774 0 0 0 0 BAN BAN GEN 1998-11-17 1 084.4:523.74/ WAL 13691 2022-02-10 2021-12-08 1998-11-17 BK