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Orbit of the Solar System: 17,200 pc 5.31×10 17: The average diameter of the orbit of the Solar System relative to the Galactic Center. The Sun's orbital radius is roughly 8,600 parsecs, or slightly over halfway to the galactic edge. One orbital period of the Solar System lasts between 225 and 250 million years. [34] [35] Milky Way Galaxy ...
Ignoring the influence of other Solar System bodies, Earth's orbit, also called Earth's revolution, is an ellipse with the Earth–Sun barycenter as one focus with a current eccentricity of 0.0167. Since this value is close to zero, the center of the orbit is relatively close to the center of the Sun (relative to the size of the orbit).
NOAA Solar Calculator, at the NOAA Earth System Research Laboratories's Global Monitoring Division website. NOAA's declination and sun position calculator; HORIZONS System, at the JPL website. Very accurate positions of Solar System objects based on the JPL DE series ephemerides. General ephemerides of the solar system bodies, at the IMCCE ...
This map shows where the aurora borealis could be visible tonight as a severe solar storm targets the Earth. If the storm hits as forecast, it could push the northern lights as far south as Alabama.
Our neighbourhood has another occupant – for a couple of months
The Sun is super active right now! ☀️ 💥 💥 The video below shows a series of flares that erupted over the past seven days… not counting another X-class flare that happened this morning ...
The Solar System remains in a relatively stable, slowly evolving state by following isolated, gravitationally bound orbits around the Sun. [28] Although the Solar System has been fairly stable for billions of years, it is technically chaotic, and may eventually be disrupted. There is a small chance that another star will pass through the Solar ...
An asteroid the size of a small truck will pass by Earth tonight, making one of the closest approaches to the planet ever recorded. Asteroid 2023 BU will zoom over the southern tip of South ...