论文标题
低地球轨道卫星种群以及SpaceX Starlink星座的影响
The Low Earth Orbit Satellite Population and Impacts of the SpaceX Starlink Constellation
论文作者
论文摘要
我讨论当前的低地轨道人造卫星种群，并表明大约12,000个星链互联网卫星的拟议的“巨型构成”将主导地球轨道的下部，低于600 km的地球轨道，纬度依赖于纬度依赖的地面数量的密度在0.005和0.01之间，最初的每平方尺度均可在Airmass <2。是裸眼对象。我将照明卫星的预期数量与纬度，一年中的时间和夜晚的函数建模，并总结了基于地面天文学的可能后果的范围。在冬季，在典型的主要观测站的较低纬度地区，卫星在半夜不会六个小时内照亮。但是，在中间纬度（例如45-55度，例如欧洲大部分地区）的暮光之附近的低海拔处，在黑暗遗址的裸眼观察者可能会立即看到数百个卫星。
I discuss the current low Earth orbit artificial satellite population and show that the proposed `megaconstellation' of circa 12,000 Starlink internet satellites would dominate the lower part of Earth orbit, below 600 km, with a latitude-dependent areal number density of between 0.005 and 0.01 objects per square degree at airmass < 2. Such large, low altitude satellites appear visually bright to ground observers, and the initial Starlinks are naked eye objects. I model the expected number of illuminated satellites as a function of latitude, time of year, and time of night and summarize the range of possible consequences for ground-based astronomy. In winter at lower latitudes typical of major observatories, the satellites will not be illuminated for six hours in the middle of the night. However, at low elevations near twilight at intermediate latitudes (45-55 deg, e.g. much of Europe) hundreds of satellites may be visible at once to naked-eye observers at dark sites.
