周星

The spacecraft made its closest approach to the comet at periastron.
航天器在近日点时最接近彗星。
The periastron passage of the binary star system triggers a spectacular eruption of gas.
双星系统的近日点通过引发了一次壮观的气体喷发。
Astronomers observed the greatest brightness of the star during its periastron orbit.
天文学家观察到恒星在近日轨道上时的最大亮度。
The gravitational pull is strongest at periastron, causing tidal forces to flex the planets.
在近日点，引力最强，导致潮汐力使行星发生形变。
The comet's tail points away from the Sun at periastron, due to solar radiation pressure.
彗星在近日点时，由于太阳辐射压力，其尾部指向远离太阳的方向。
The periastron event for this eccentric orbit occurs only once every seven years.
这个偏心轨道的近日点事件每七年才发生一次。
During periastron, the two stars in the system are at their closest distance, intensifying their interaction.
在近日点期间，系统中的两颗星距离最近，增强了它们之间的相互作用。
The periastron shift in the orbit of Mercury was a key evidence for Einstein's General Theory of Relativity.
水星的近日点进动是爱因斯坦广义相对论的关键证据之一。
The increased brightness of the eclipsing binary during periastron is due to the closer alignment of the stars.
在近日点时，食双星的亮度增加是因为星星的对齐更紧密了。
Studying the periastron passages of pulsars can reveal details about their massive companions and the nature of their orbits.
研究脉冲星的近日点通过可以揭示其大质量伴星的细节及它们轨道的性质。