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*There are no parallax problems when EOTS is on the same axis as the radar

...construct entirely new ones. Tycho's naked eye measurements of planetary [[parallax]] were accurate to the [[arcminute]]. His sister, Sophia, assisted Tycho in ...mething in the [[Earth's atmosphere]]. Tycho, however, observed that the [[parallax]] of the object did not change from night to night, suggesting that the obj

[[Photometry]] | [[Stellar parallax]] | [[Spectroscopy]]

...worked tirelessly to make accurate measurements of [[planet|planetary]] [[parallax]] were accurate to the arcminute. By systematic and rigorous observation, n

...a disk. The distance to a [[star]] was first measured in 1838, when the [[parallax]] of [[61 Cygni]] was measured by [[Friedrich Bessel]]. The measurement of [[parallax|stellar parallax]] of nearby stars provides a fundamental baseline in the [[cosmic distance

...went to the [[Cape of Good Hope]] for the purpose of determining the sun's parallax by observations of the parallaxes of [[Mars]] and [[Venus]], and incidental

...that the Earth orbited the Sun, apparently because there was no detectable parallax, which was not, in fact, proved until 1838 by Bessel.<ref>[http://www.astro

...celestial observations, and many well-established phenomena (no fixed star parallax, invariance of laws of motion) could at first not be explained in the helio