What speed does earth travel at?
Earth’s rotation period relative to the Sun (its mean solar day) is 86,400 seconds of mean solar time. Each of these seconds is slightly longer than an SI second because Earth’s solar day is now slightly longer than it was during the 19th century due to tidal acceleration. The mean solar second between 1750 and 1892 was chosen in 1895 by Simon Newcomb as the independent unit of time in his Tables of the Sun. These tables were used to calculate the world’s ephemerides between 1900 and 1983, so this second became known as the ephemeris second. The SI second was made equal to the ephemeris second in 1967. Some sources state that Earth’s equatorial speed is slightly less, or 1669.8 km/h Average orbital speed, 29.783 km/s 107218 km/h. Inclination, 1.57869° ya that guy said correct… speed is relative… u didn’t mention what to compare it with!!! @ Bobby… You can’t do that because earth has eliptical orbit and you don’t have a constant radius… So don’t say multiply by 2pi… Say “find
In our orbit around the Sun, our average speed is 29.786 km/s (66,630 mph) Use the average orbital distance, multiply by 2*pi to get the distance the Earth must cover in a year, then divide by the time it takes (one year, measured in the appropriate units). Pretending the orbit is circular will give you a good enough approximation. If you want to be fancy, you can throw in the eccentricity of the orbit and calculate the circumference of the ellipse, but the added accuracy will not be worth the trouble for this kind of thing (it would be if you were sending a probe to another planet and had to calculate how much fuel you need). The Sun, relative to the neighborhood stars is moving at 19.4 km/s (43,400 mph). It is never exactly in line with our orbital speed vector. However, the Earth is being taken along and, therefore, this speed must be vectorially added. Relative to the centre of our Galaxy, all the stars in the Sun’s neighborhood are orbiting the Galactic centre at a speed of roughl
