AstronDog
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Resolution and Rayleigh Criterion Resolution and Rayleigh Criterion
Diffraction limits resolution. The Rayleigh criterion states that two images are just resolvable when the centre of the diffraction pattern of one is directly over the first minimum of the diffraction pattern of the other.
2024-08-27
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Astronomical coordinate systems Astronomical coordinate systems
在天文学中,有几种常用的坐标系,用于描述天体在天空中的位置。每种坐标系都有其独特的用途和适用范围。在这里,我总结了及总常见的天文学坐标系。
2023-03-21
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LOFAR introduction LOFAR introduction
The Low-Frequency Array (LOFAR) is a cutting-edge radio telescope network designed to observe the universe at low frequencies, ranging from 10 MHz to 240 MHz.
2022-07-05
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