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Urania Propitia was a simplification of the Rudolphine Tables written by Johannes Kepler in 1627. Kepler's dedication to Emperor Ferdinand II which was originally dedicated to Rudolf II was filled with complex and tedious logarithms.
Newcomb gives the Right ascension of the fictitious mean Sun, affected by aberration (which is used in finding mean solar time) as [10] τ = 18 h 38 m 45.836 s + 8 640 184.542 s T + 0.0929 s T 2. Authors citing this expression include McCarthy & Seidelmann (p. 13) and the Nautical Almanac Offices of the United Kingdom and United States (p. 73).
An oblique combination of the sinusoidal and Mollweide projections. 1906 Eckert II: Pseudocylindrical Equal-area Max Eckert-Greifendorff: 1906 Eckert IV: Pseudocylindrical Equal-area Max Eckert-Greifendorff: Parallels are unequal in spacing and scale; outer meridians are semicircles; other meridians are semiellipses. 1906 Eckert VI ...
A spectacular year awaits, Taurus!According to Thomas' predictions, 2025 is going to bring forth many "surprises and fresh starts" your way. If the past few years have seemed like a whirlwind ...
Right ascension and declination as seen on the inside of the celestial sphere. The primary direction of the system is the March equinox, the ascending node of the ecliptic (red) on the celestial equator (blue). Right ascension is measured eastward up to 24 h along the celestial equator from the primary direction.
Rep. Alexandria Ocasio-Cortez announced on Friday that she is jumping into the race to be the top Democrat on the influential House Oversight Committee.
Oblique training should complement your core workouts, especially if you want to sculpt and tone your waistline. "The best types of workouts to target this would be things like side planks or ...
Alternatively to right ascension, hour angle (abbreviated HA or LHA, local hour angle), a left-handed system, measures the angular distance of an object westward along the celestial equator from the observer's meridian to the hour circle passing through the object. Unlike right ascension, hour angle is always increasing with the rotation of Earth.