Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Blue Supergiant Stars

蓝超巨星

Blue supergiant stars are typically characterized by an O-Type spectrum, or a B-type spectrum for those classified as blue-white.

蓝超巨星通常具有O型光谱，或对于被归类为蓝白色的恒星而言为B型光谱。
Deneb
天琴座α星
SK-69202
SN 1987A

 Index

Star concepts

索引星概念
 
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Deneb

天琴座α星

Deneb is a blue-white supergiant star which forms the tail of the swan in the constellation Cygnus, or the top of the cross if the constellation is referred to as the Northern Cross. It's companions in the Summer Triangle are Vega and Altair.

天琴座的天琴座星（Deneb）是一颗蓝白色的超巨星，是天琴座中天鹅的尾部，或者如果将天琴座称为北十字，则是十字的顶端。它在夏季三角形中的伴星是 Vega 和 Altair。

Blue-white stars are typically characterized by a B-type spectrum.

蓝白色星通常具有B型光谱。
 Index

Star concepts

Blue supergiant stars
索引星概念 蓝超巨星
 
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Sk-69202, Progenitor of SN 1987A

Sk-69202，超新星1987A的前身星

It was fortunate that the star which produced Supernova 1987A was a known star, a blue supergiant star which had been catalogued as SK-69202. It presumed to have a mass of about 20 solar masses.

幸运的是，产生超新星1987A的恒星是一颗已知的蓝超巨星，曾被编目为SK-69202。它被假定具有约20个太阳质量。

Blue supergiant stars are typically characterized by an O-Type spectrum.

蓝超巨星通常具有O型光谱。
 Index

Star concepts

Blue supergiant stars
索引星概念 蓝超巨星
 
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HyperPhysics ***** 天体物理学
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