(NEW) ATel 16496: He II Emission Line Became the Most Intense Line in the Optical Spectrum of Nova V1405 Cas... https://www.astronomerstelegram.org/?read=16496
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(NEW) ATel 16496: He II Emission Line Became the Most Intense Line in the Optical Spectrum of Nova V1405 Cas... https://www.astronomerstelegram.org/?read=16496