How to classify variable stars?

Technology VSX
1

Hello everyone.
When submitting variable stars to VSX, when do we classify a variable star as AM Her type, and when do we classify it as CV?
How do we distinguish between them?

Best regards,
Jiashuo Zhang

2

AM type belongs to the very diverse CV zoo. I suspect that spectral analysis is often required to differentiate of CV types.

Short description of types you would find here, and there is the opportunity with CHOICE course now.

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