Evidence is presented in this Note for the presence of twice ionized praseodymium and neodymium in the upper atmosphere of HD 99803 A, which turns out to be a newly discovered cool HgMn star in a binary system.

中文翻译：

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HD 99803 A高层大气中两次离子化的Pra和钕的证据

在本注释中提供了证据，证明在HD 99803 A的高层大气中存在两次离子化的and和钕，这证明是新发现的双星系统中的冷HgMn星。