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This oscillation is very negligible. The amplitude of oscillation on galactic place is 105light years at Max. Whereas sun make nearly 3 such oscillations in one galactic rotation in a period of 240 Million LY. This means that in travelling 40 MLY on galactic plane, sun reaches the amplitude max. So if you calculate the angle which the sinusoidal path makes ...


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This is more of a recent example than a record. On 2019-07-25, asteroid 2019 OK passed about 65000 km from the Earth at a relative speed of 24.5 km/s. The Minor Planet Center lists multiple observations from sites in Italy and Armenia an hour before closest approach. Using pairs of these (streak endpoints?) by the ISON-Castelgrande observatory, I compute ...


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