In March 1907 the Russian astronomer Nikolai Alexandrovich Morozov published the book Revelation In Thunderstorm And Tempest.
(Russian: «Откровение в грозе и буре»; German title Die Offenbarung Johannis – Eine astronomisch-historische Untersuchung, meaning in English: The Revelation to John: An Astronomic Historical Investigation).
Morozov presumes that the educated John was able to calculate the Saros cycle and, therefore, did observe the sky on this day in attendance of a solar eclipse.
The description of the skies starts systematically at the Pole with a constellation named Throne (presently Ursa Minor): 3.
The text continues mentioning the Milky Way and the signs of the zodiac denoting the four seasons: Lion, Taurus, Sagittarius and Eagle (presently Aquarius): 4.