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Clear Sky Alarm Clock free email notification service; Weather forecast for astronomy from Environment Canada Archived 2019-12-23 at the Wayback Machine; The Canadian Meteorological Centre; The Clear Sky Clock widget for MacOS (10.4 or greater) Download the Windows Vista Sidebar Gadget; myCSC iPhone/iPad/iPod Touch App; iCSC: Clear Sky Chart ...
NASA's Eyes Visualization (also known as simply NASA's Eyes) is a freely available suite of computer visualization applications created by the Visualization Technology Applications and Development Team at NASA's Jet Propulsion Laboratory (JPL) to render scientifically accurate views of the planets studied by JPL missions and the spacecraft used in that study.
Typical DSO survey in Celestia. Celestia versions 1.6.3 and under display the Hipparcos Catalogue (HIP) of 118,322 stars and a compiled catalogue of galaxies, while version 1.7.0 includes stars from the Tycho-2 Catalogue alongside the Hipparcos stars, with some data from Gaia, increasing the star count to over 2 million. [23]
The investment valued Notion at $10 billion, and the company had 20 million users. [13] In 2022, Notion launched the Notion Certified Program, an accreditation for users to expand their use of the platform. [14] [15] It also joined the Security First Initiative, a group of tech companies pledged to sharing security information with their ...
If a planet rotates prograde, and the sidereal day exactly equals the orbital period, then the formula above gives an infinitely long solar day (division by zero). This is the case for a planet in synchronous rotation ; in the case of zero eccentricity, one hemisphere experiences eternal day, the other eternal night, with a "twilight belt ...
A modern clock in the tower of Stuttgart Town Hall shows the moon phase and the day of the week. Worms. The clock tower Worms Town Hall has a modern calendar dial that shows the month, the positions of the sun and moon in the zodiac, the moon phase, and has a dragon hand.
Animation showing equation of time and analemma path over one year.. The United States Naval Observatory states "the Equation of Time is the difference apparent solar time minus mean solar time", i.e. if the sun is ahead of the clock the sign is positive, and if the clock is ahead of the sun the sign is negative.
The clock normally also displays the phase of the Moon and the four-year calendar. [1] It is related to the orrery, which illustrates the relative positions and motions of the planets and moons in the Solar System in a heliocentric model. The word tellurion derives from the Latin tellus, meaning "earth". [2]