# Tag Info

### Are the stars distributed in uniform distribution, on the celestial dome, with respect to brightness?

Naked eye stars are not distributed uniformly in the sky. That is because the median naked eye star is at a distance of 440 light years, and this is far enough away that some of the details of ...
• 115k

### Why does the Fourier transform of this CMB image have a hole in it?

Having now looked at the paper by Aiola et al. (2020), it emerges that for that map, they filtered the data to exclude low frequency multipoles with $|l|<150$, corresponding to about 1 degree. This ...
• 115k
Accepted

### At what distance from the Sun can planetary moons exist?

There are several factors determining the inner limit to moons. Perhaps the simplest is that it needs to stay inside the Hill sphere, the region around the planet where the planet's gravity dominates ...
• 10.3k
Accepted

• 111

### N-body simulation still losing precision despite using arbitrary-precision arithmetic and symplectic integrator

So there are a number of things that can happen here under the proverbial hood that can cause this kind of error to come up. First off, round off error is going to be at the heart of all your problems....
• 2,147