(Q1395645)
Statements
Identifiers
Sitelinks
Wikipedia(8 entries)
- dewiki Fangspiegel
- enwiki Secondary mirror
- eowiki Sekundara spegulo
- frwiki Miroir secondaire
- lbwiki Sekundärspigel
- thwiki กระจกเงาทุติยภูมิ
- ukwiki Вторинне дзеркало
- zhwiki 次鏡
secondary deflecting or focusing mirror in a reflecting telescope