美国国家航空和航天局的太阳力学天文观测台称,有一股强大的与耀斑引起的日冕物质抛射大约以每秒560英里(每秒900千米)的速度向地球袭来。
NASA's Solar Dynamics Observatory said it saw a large coronal mass ejection (CME) associated with the flash blasting toward Earth at about 560 miles per second (900 kilometers per second).
2010年10月7日,当一轮新月从太空飞船(与地球同步轨道)和太阳之间直接经过时,美国国家航空航天局太阳动力学观测台观测到了圆月的运转。
On Oct. 7, 2010, NASA's Solar Dynamics Observatory, or SDO, observed its first lunar transit when the new moon passed directly between the spacecraft (in its geosynchronous orbit) and the sun.
来自“深空气候观测台”的警报将会针对整个地球。
地球自转角速度的变化对脉冲星周期变率影响的数值,取决于脉冲星的赤纬和观测台站的纬度;
The magnitude of the effect on the rate of change of pulsar period depends on the declination of the pulsar and the latitude of the observing station.
地球自转角速度的变化对脉冲星周期变率影响的数值,取决于脉冲星的赤纬和观测台站的纬度;
The magnitude of the effect on the rate of change of pulsar period depends on the declination of the pulsar and the latitude of the observing station.
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