On that «super» day, the All Sky Automated Survey for SuperNovae (ASASSN) reported a supernova in
the same nearby galaxy Kepler was monitoring.
Not exact matches
To begin with, they orbited close to the plane of the ecliptic in the
same direction as the planets, but their orbits were deformed by the
galaxy's tidal force and by interactions with
nearby stars, gradually becoming more inclined and forming a more or less spherical reservoir,» Morais said.
A search for
nearby dwarf
galaxies that should show the
same signal have proved fruitless, leaving physicists disappointed after five years of excitement.
The astronomers believe that AzTEC - 3 and the other
nearby galaxies appear to be part of the
same system, but are not yet gravitationally bound into a clearly defined cluster.
In the 1970s, astronomers Vera Rubin and Kent Ford used the
same basic arguments to show, in much more convincing detail, that spiral
galaxies appear to keep their shapes because of the gravitational glue from
nearby dark matter.
Taking into account that the relatively
nearby (in the sky)
galaxy M98 is approaching us at 125 km / sec, and thus moving at about the
same peculiar velocity but, by chance, toward us, one may speculate that these two
galaxies might have been involved in an encounter, but this is currently not much more than wild speculation.
Re 51 Tom P — watched the video; and I agree that the sun does wobble around the center of mass of the solar system; the center of mass itself is not tending to wobble around the sun because conservation of momentum applies to the solar system as a whole (except of course for the forces applied to it by
nearby stars, the rest of the
galaxy, etc, but those are not varying so fast and so the center of mass should generally be moving along rather smoothly on the
same timescale as planetary motions).