视星等

apparent magnitude

视星等

所谓"视星等"(apparent magnitude),指在地球星上观测恒星的亮度等级. 有两个因素值得考虑:(1)这颗恒星距地球星有多远?愈近,亮度愈大;愈远,亮度愈小. (2)这颗恒星本身究竟有多亮?温度愈高且质量愈大,愈亮;温度愈低且质量愈小,愈不亮.

limiting apparent magnitude

极限视星等

limiting angle of resolution 极限分辨角 | limiting apparent magnitude 极限视星等 | limiting bed 界限层

apparent photovisual magnitude

视仿视星等

apparent photographic magnitude 视照相星等 | apparent photovisual magnitude 视仿视星等 | apparent place 视位[置]

apparent photographic magnitude

视照相星等

apparent path 视路径;视轨迹 | apparent photographic magnitude 视照相星等 | apparent photovisual magnitude 视仿视星等

apparent motion

视运动

apparent magnitude 视星等 | apparent motion 视运动 | apparent noon 视午

photovisual magnitude

仿视星等

phototransistor 光电晶体管 | photovisual magnitude 仿视星等 | photovoltaic effect 光生伏打效应

photovisual magnitude

拟视星等

"(一)光化视觉消色差性;(二)拟视 (波段)消色差性","photovisual achromatism" | "拟视星等","photovisual magnitude" | "光电压","photovoltage"

absolute photovisual magnitude

绝对仿视星等

absolute photometry 绝对光度学;绝对测光 | absolute photovisual magnitude 绝对仿视星等 | absolute proper motion 绝对自行

absolute photovisual magnitude

绝对仿视星等,绝对仿视星等

absolute photographic magnitude 绝对照相星等,绝对照相星等 | absolute photovisual magnitude 绝对仿视星等,绝对仿视星等 | absolute pitch 绝对音调,绝对音调

apparent magnitudes

视星等

"视天平动","apparent liberation" | "视星等","apparent magnitudes" | "视子正","apparent midnight"

Supposed to Be：应该吧

我想我该睡了 i think i should slp | 应该吧 supposed to be | 希望 hope so

Plain Weave：平布

509 hopsack 方平织物 | 510 plain weave 平布 | 511 panama 巴拿马薄呢