Plate 24: Main Sequence, A5–F0, and Two Proto Am Stars

Star Index

Plate 24: Main Sequence, A5–F0, and Two Proto Am Stars

All four stars lie extremely close to the ZAMS of Morton and Adams, when a modulus of 5m.55 is used for the Pleiades — and when the effective type for the two Am stars is taken midway between the extremes of K–line and metallic–line type. The metallic–line type is determined over the spectral range Hγ–Hε.

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