Vly News - Professional news Platform

Have you heard of the LU Camelopardalis, QZ Serpentis, V1007 Herculis, and BK Lyncis? No, they weren’t in the boy band in ancient Rome. They are Cataclysmic Variables, binary stars so close together that one star takes matter from its sibling. This causes the pairs to vary greatly in brightness. Could a planet exist in this chaotic environment? Can we see them? A new study says yes to both. Cataclysmic Variables (CVs) experienced a large increase in brightness. All stars vary in brightness to some degree, even our own sun. But the CV increase in brightness is much more pronounced than in stars like our Sun, and it happens on an irregular basis There are different types of catastrophic variables: classic nova, dwarf nova, multiple supernova, and others. All types share the same basic mechanics. A pair of stars orbit each other closely, and one star is larger than the other. The more massive ones are called primary stars, and draw gas from lower-mass stars, which astronomers ca

This image shows the center of our Milky Way galaxy. It shows the position of stars in the so-called S star cluster, a small group of high-speed stars orbiting our Milky Way’s central black hole (at the black cross). Speedy star S4716 has set a new record as the fastest known of all these stars. Image via Peissker et al. Fast star orbiting the Milky Way’s black hole Scientists in Europe said on July 5, 2022 that they had found the fastest star known to orbit a black hole. And not just any black hole… it orbits Sagittarius A*, the giant black hole at the center of our Milky Way galaxy. Our central black hole weighs about 4 million times the mass of our sun. The newly discovered star is called S4716. It reaches an orbital speed of 5,000 miles per second (8,000 kps) around the black hole, or about 5,000 times faster than the fastest fighter jet. Imagine seeing star – a huge ball of turbulent gas that glows on its own – shooting at this speed! By the way, on the other hand, ou