Glossary term: 顏色
Description: 天體的顏色可以提供有關其物理特性的重要信息。即使用肉眼觀察,你在天空中看到的偏藍色的恆星(例如位於北斗七星“勺柄”末端的搖光星)也會比偏紅色的恆星(例如位於獵戶座肩部的參宿四星)熱得多。為了量化顏色,天文學家通常使用可選的幾種專用藍色濾光片之一觀測恆星的亮度,並將其與通過紅色濾光片觀測的亮度進行比較。通過比較不同的特定濾光片觀測到的亮度,即可給出顏色的明確定義。目前有幾種這樣的定義處於應用中。其結果可用於統計分析。例如,顏色-星等圖的兩條軸線就分別是天體顏色與天體亮度。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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