A video filmed by NASA astronaut Matthew Dominick shows a rare glimpse of Comet Tsuchinshan-ATLAS as seen from the ...

Comet Tsuchinshan-ATLAS (C/2023 A3) will soon be reaching its closest point to the Sun and continues to get brighter, ...

Comets take the name of the discoverer, whether that be a human or an automated telescopic survey that robotically inspects ...

When a comet is discovered, it is necessary to calculate its orbit, and predict where it will be in future by the aid of an ephemeris As mentioned in the article on Brooks comet (Scientific ...

Astronomers immediately became excited about the comet because it appeared to be unusually bright—even when it was still well outside Jupiter's orbit. Careful analysis of a Hubble Space ...

Sometimes a comet such as Shoemaker Levy 9 will go into orbit around Jupiter and act as a moon. Others leave Jupiter's orbit and go back around the sun. Comets are like cats; they both have tails ...

Like all comets, Halley’s Comet is slowly losing material each time it passes close to the Sun. As its volatile ices sublimate, it loses mass, and its nucleus gradually shrinks. Researchers estimate ...

“The comet will get so close to the Sun — inside the orbit of planet Mercury — that its nucleus may break up.” There is some debate over whether or not this will be the last time the comet ...

Called C/2023 A3 (Tsuchinshan-ATLAS) and discovered simultaneously by telescopes in both Africa and China, little is known about this comet aside from its orbit, which will bring it closest to ...

27, when it arrives at perihelion — the closest point in its orbit to the sun. The saga of Comet Tsuchinshan-ATLAS (pronounced Choo-cheen-SHAHN -ATLAS), is now coming down the home stretch.

and Pons's comet of 1812, rediscovered by Mr. Brooks in1883, approach very near to the orbit of Neptune, their greatest distance from the sun (aphelion) lying a little beyond that planet.

Short-period comets orbit the Sun in 200 years or less and mostly come from the region just beyond Neptune. Long-period comets come from the Oort cloud. Comet C/2023 A3 has a nearly hyperbolic orbit.