观测天文学 meaning in English
observational astronomy
Examples
- Observational astronomy area
观测天文学展览区 - This star emits x - ray pulses with a period of 7 . 47 s . from time to time , outbursts of low energy gamma - rays are also observed . hence , observational astronomers sometimes call this type of stars " soft gamma ray repeaters "
这颗星以7 . 47秒的周期发放著x射线脉冲，并不时发射低能量伽玛射线，因此，观测天文学家有时称这类星为继发软伽玛射线源。