Julian Date (JD) corrected for differences in the Earth's position with respect to the Sun
The Heliocentric Julian Date (HJD) is the Julian Date (JD) corrected for differences in the Earth's position with respect to the Sun. When timing events that occur beyond the Solar System, due to the finite speed of light, the time the event is observed depends on the changing position of the observer in the Solar System. Before multiple observations can be combined, they must be reduced to a common, fixed, reference location. This correction also depends on the direction to the object or event being timed.
and 25 Related for: Heliocentric Julian Day information
The HeliocentricJulian Date (HJD) is the Julian Date (JD) corrected for differences in the Earth's position with respect to the Sun. When timing events...
HeliocentricJulianDay (HJD) is the same as the Julianday, but adjusted to the frame of reference of the Sun, and thus can differ from the Julian day...
center of the Universe. Although he had circulated an outline of his own heliocentric theory to colleagues sometime before 1514, he did not decide to publish...
1970, 00:00:00 (UTC). Julianday, number of days elapsed since 1 January 4713 BC, 12:00:00 (UTC). HeliocentricJulian Date, Julianday corrected for differences...
diagram of his heliocentric theory of the Solar System from De revolutionibus orbium coelestium Copernicus's major work on his heliocentric theory was Dē...
to the Julian Calendar used by the ancient Romans. As mentioned above, Varro wrote that spring, summer, autumn, and winter start on the 23rd day of the...
It occurred seven weeks after the heliocentric conjunction, when Jupiter and Saturn shared the same heliocentric longitude. The closest separation occurred...
Julian Priester (born June 29, 1935) is an American jazz trombonist and occasional euphoniumist. He is sometimes credited "Julian Priester Pepo Mtoto"...
some have interpreted as a heliocentric model. This is due to his orbital revolutions of the planets being given as heliocentric revolutions rather than...
for expressing the time of year in the southern hemisphere in lieu of heliocentric longitude, which would have been less comprehensible to a general readership...
which include accounting and political science. Copernicus proposed the heliocentric universe, which was met with strong resistance, and Tycho Brahe refuted...
angular frequency of 0.01720209895 radians per day"; or alternatively that length for which the heliocentric gravitational constant (the product GM☉) is...
shares its name with the god. A pair of probes that were launched into heliocentric orbit by NASA to study solar processes were called Helios A and Helios...
lists the heliocentric position of Mars at 0h Terrestrial Time, 4 January 2010 as: longitude 118°09′15.8″, latitude +1°43′16.7″, true heliocentric distance...
auctae, the first major ephemeris computed according to Copernicus' heliocentric model, using parameters derived from the Prutenic Tables. Although the...
recordings from 1965 (The Magic City, The Heliocentric Worlds of Sun Ra, Volume One, and The Heliocentric Worlds of Sun Ra, Volume Two) where the intertwining...
Gregorian calendar of 1582. In the 16th century Copernicus put forward a heliocentric cosmology. Erasmus Reinhold used Copernicus' theory to compute the Prutenic...
Ponticus, philosopher and astronomer, possibly the originator of the heliocentric theory Philo of Byzantium, engineer, physicist and writer on mechanics...
reform in 46 BCE and introduced what is now called the Julian calendar, based upon the 365 1⁄4 day year length originally proposed by the 4th century BCE...
equinoxes and other phenomena, eradicating doubt about the Solar System's heliocentricity. He demonstrated that the motion of objects on Earth and celestial...
irrelevant to the question of whether that position was computed using a heliocentric or geocentric view of the Solar System; either computational method should...
Ἀρίσταρχος; c. 310 – c. 230 BCE) presented an explicit argument for a heliocentric model of the Solar System, i.e. for placing the Sun, not the Earth, at...
Venus exhibits a full set of phases similar to that of the Moon. The heliocentric model of the Solar System developed by Nicolaus Copernicus predicted...
used an underlying heliocentric model for his astronomical calculations, which would make it the first computational heliocentric model in history (as...
Copernican world system. This adherence by Galileo to the Copernican heliocentric theory arises due to its apparent mathematical grandeur and his prior...