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What Do The Spectral Class Letters Stand For?

January 24, 2024 by Emily Lee

What Do The Spectral Class Letters Stand For? The full order of classification is O, B, A, F, G, K, M – more easily remembered by using the mnemonic “Oh Be A Fine Girl/Guy, Kiss Me”. This also orders adult (main sequence) stars from hot to cool; the hottest (and largest) main sequence stars are

What Is Obafgkm?

January 24, 2024 by Emily Lee

What Is Obafgkm? The spectral sequence O B A F G K M. The classic mnemonic is Oh Be A Fine Girl, Kiss Me. You may replace girl with guy, depending on your sexual orientation, without changing the sense of the mnemonic. What do the classifications OBAFGKM indicate about stars? OBAFGKM is a classification system