Fixed Star Zavijava and Einstein

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In Nature No 568 306-307 (2019), Peter Coles describes some facts about Einstein's general theory of relativity.
https://www.nature.com/articles/d41586-019-01172-z

1919 – Test of the theory of relativity

Einstein first publicly aired the general theory of relativity to the Prussian Academy of Sciences in 1915. The First World War was by then well under way, in all its horror. The next year, despite wartime severance of communication channels, Eddington and fellow astronomer Frank Watson Dyson — then director of the Cambridge Observatory and Astronomer Royal, respectively — managed to obtain Einstein’s published papers. Dyson immediately realized that the total solar eclipse in 1919 would prove an ideal test.
During this eclipse, the Sun would sit in front of the Hyades, a cluster of bright stars in the constellation of Taurus. (Longitude 1900: 04GEM24) Thus, at totality, many stars would be visible near the eclipsed disk. (This was key because the light-bending effect predicted by Einstein is greatest for stars observed close to the Sun.) The stars’ positions relative to the Sun could be recorded and measured on photographic plates, and then compared with reference plates showing the stars when the Sun was nowhere near the field of view. Any apparent shifts, caused by the Sun’s gravitational field, could then be calculated. The more stars measured, the better the chance the observers would have of correcting for systematic errors and reducing random ones. That was the idea.

1922 – Test to determine the speed of light in space

In 1922, he used the Fixed Star Zavijava (Longitude 1900: 25 Vir 45) during the solar eclipse of Sept 21, 1922 to determine the speed of light in space.
Ptolemy makes the following observations; “The stars in the head of Virgo, and that at the top of the southern wing, operate like Mercury and somewhat like Mars:
Manilius in Astronomica describes this constellation as "“The temperaments of those whose span of life she pronounces at their birth Erigone (Virgo) will direct to study, and she will train their minds in the learned arts. She will give not so much abundance of wealth as the impulse to investigate the causes and effects of things. On them she will confer a tongue which charms, the mastery of words, and that mental vision which can discern all things, however concealed they be by the mysterious workings of nature."

Mercury Ruler of the NM Eclipse is conjunct Jupiter and Spica, said to be the most beneficial Royal Star. - A successful scientific experiment -


So, September 21st, let's remember some stars of the past.

https://www.constellationsofwords.com/zavijava/
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Blessings!