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4 Threads found on edaboard.com: Astronomical
Julian dates are commonly used in astronomical timekeeping. The algorithm may use it internally to calculate to the day, regarding financial, etc.
Hi to all, By knowing the longitude and latitude value of the place , how one could calculate the astronomical clock ( Sunrise and Sunset ) of the day. Please help Thanks ~ in advance
has any one used bushnell 3" refelctor? or any small reflecting telescopes? Is it good enough? I heard small reflectors less than 4" is not as good as refractors of similar size...?
The International astronomical Union defines "planet" as a celestial body that, within the Solar System, (a) is in orbit around the Sun; (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape; and (c) has cleared the neighbourhood around its or