This is not something that could possibly happen, so there's little point in attempting to speculate on it. A solid body the size of Antares would, however, collapse into a black hole from its own mass.
it could be the end of the earth
if its bigger than isle of man it would do a very big impact and damage
Jupiter is so big that the Earth would orbit Jupiter.
Then the Earth would have two moons, Ceres isn't very big though (much smaller than our current moon). Maybe a small difference in the tidal cycle but that's about it. How big of a difference would depend on how close it was orbiting.
earth was damaged on this day by a big blast
Dinosaurs would evolve, again. They would invent really big internal combustion engines, and use dead humans for fuel.
no.Not even close.Antares is over 20x bigger then the sun.The sun is nothing compared to this star.But not even the antares star is big. The biggest star in the galaxy is called the vy canis majoris. The canis majoris makes antares look like it is invisible!
Without convection in Earth's mantle, the movement of tectonic plates would cease, leading to no volcanic activity or earthquakes. This lack of movement would also disrupt the Earth's magnetic field, affecting navigation and exposing the planet to more harmful solar radiation.
To the human race and many animals: Death To some small creatures that hide quickly and deeply enough: Life To the earth: A big hole and destruction and ruin across the Earth.
Earthquakes have been happening since shortly after earth's formation, and will continue to happen as long as earth exists. They can cause horrific damage and loss of life, but they are completely "natural" to the geology of earth.
(Alpha Scorpii) Antares (meaning "Rival of Mars") is the brightest star in Scorpius, one of the constellations in the zodiac. Antares is a M1.5Iab variable red supergiant star that is about 520 light-years from Earth and is about 230 times as big as the Sun. This incredibly massive, old, low-temperature (3500 K) star is the 15th brightest star in the sky; it has a visual (apparent) magnitude of +0.96 (var.) and an absolute magnitude of -5.2.
It would depend on how big they were. Small ones would make no difference but large ones would probably interfere with each other's orbits and crash.