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physical object > natural object > celestial body > star > emission line star > H and K emission line star |
H and K emission line star comparison table |
Subject | is a kind of | has definition | has spectral type |
---|---|---|---|
emission line star | star | ||
late star | star | Star with spectral type later than the sun (G2). | cooler than G2 |
H and K emission line star | emission line star | Late objects (F4 to M), which exhibit emission features in their Ca II HK lines. | cooler than G2 |
Next emission line star: Me star Up: emission line star, late star Previous emission line star: Be star