Loading...

Glossary term: 矮星系

Description: 矮星系是一種小星系,由於體積非常小,或者表面亮度非常低(或者兩者兼而有之),而異常暗淡。通常情況下,矮星系的亮度最多是太陽亮度的十億倍,相當於我們的銀河系亮度的不到百分之一。矮星系有許多不同的類型,包括矮橢圓星系、矮球星系、矮漩渦星系和矮不規則星系。其中最重要的矮星系之一就是小麥哲倫雲,它是我們的銀河系的一顆矮不規則衛星星系。

Related Terms:



See this term in other languages

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

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".