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2 dni temu · Stellarium Web is a planetarium running in your web browser. It shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.
- My Observations
Observation Log Book. Every amateur astronomer will tell...
- Calendar
Stellarium Web is a planetarium running in your web browser....
- My Observations
1 dzień temu · The easiest way to determine stellar distance to the Sun for objects at these distances is parallax, which measures how much stars appear to move against background objects over the course of Earth's orbit around the Sun.
4 dni temu · Using the Orbital Distance Calculator involves these steps: Enter Period of Orbit: Input the orbital period of the celestial body in years. Calculate Orbital Distance: Click the calculate button to obtain the average orbital distance in Astronomical Units (AU). The result provides a numerical value representing the average distance between the ...
3 dni temu · The nearest star to the Earth, apart from the Sun, is Proxima Centauri, 4.2465 light-years (40.175 trillion kilometres) away. Travelling at the orbital speed of the Space Shuttle, 8 kilometres per second (29,000 kilometres per hour), it would take about 150,000 years to arrive.
3 dni temu · As Neptune and the Earth move through space, the distance between them is constantly shifting. When the planets are closest to each other, they lie at a distance of 4.3 billion km (2.7 billion miles). At its farthest, Neptune lies 4.7 billion (2.9 billion miles) km away from the Earth.
3 dni temu · Their elliptical orbit is eccentric, so that the distance between A and B varies from 35.6 astronomical units (AU), or about the distance between Pluto and the Sun, to 11.2 AU, or about the distance between Saturn and the Sun.
5 dni temu · Opposition is the best time to observe a planet or another celestial body. At that time, objects are fully illuminated by the Sun and shine brightly in the sky. Moreover, planetary oppositions occur near a planet’s closest approach to the Earth, when a planet appears at its biggest.
