恒星背景

中国古代相对于恒星背景的天象观测

Ancient Chinese Astronomical Observations Related to the Stellar Background on the Sky

恒星背景噪声对星间激光链路跟瞄系统影响的仿真分析

Influences of stellar background noise on tracking and pointing subsystem of intersatellite optical communications

通过仿真验证，该方法对于运动恒星背景中运动小目标的检测具有比较好的效果。

It is demonstrated that this method have a good effect on the moving small space object detection in the moving star background through simulation test .

接着详细分析影响恒星背景光功率强度的因素，给出几种减弱恒星背景影响的措施。

Then a detailed analysis of the influencing factor to the background light power have been studied . Several measures have been given to weaken the influence of the background .

因为这些星簇很容易便消失在主星系混乱的恒星背景中，仔细观察星簇的瓦解是很困难的。

It 's been difficult to observe exactly how star clusters dissolve due to the fact that they are easily lost in the cluttered star field background of the host galaxy .

各个恒星可能是舞台背景上的演员，但随着它们的每次运动，整个舞台都会发生变化。

The stars might be actors on a stage set , but every time they moved , the whole stage rearranged itself .

根据恒星和白天大气背景辐射的对比度，计算和分析了3°×3°视场下，可探测星等极限值随观测高度、太阳天顶角、波段和恒星光谱类型的变化情况。

Based on the results of the contrast of star to sky background in daytime , the detectable stellar magnitude limits are computed and analyzed as functions of observing heights , solar zeniths angle , wavebands and stellar spectral types for 3 °× 3 ° field of view .

建立了以恒星目视星等、等效温度为参数的恒星辐射谱模型，使利用恒星数据库进行背景噪声分析变得更加简捷。

A new stellar radiation spectral function was produced to convenience the background noise analysis of satellite optical communication system .