The mass of a Star determined the Star's development and time of death. The most of the Star's have age from one billion to ten billion years.The Solar System has a planet where there is a life. The Solar System locates in the Milky Way and the Solar System has 26,000 light years from the center of the Milky Way. The Solar System has known to be life a unique planet. This planet is the Earth.
Looks like a real solar system. It is use to illustrate the relative positions and motions of the planets and other objects/particles in our solar system. The principal components/parts of it are the large bulb that is use to represent the sun which is the center of our solar system ,those round objects as the nine different planets or bodies in orbit the sun and that are bounded by gravity, its body and the stand that support the large bulb. The four small inner objects are use to
Scientists have discovered this through implementing adaptive optics, which are used in astronomical telescopes to pierce through the blur of earth’s atmosphere in order to see the center of each galaxy. A black hole’s formation involves the gravitational collapse of a massive star, which is also known as a supernova explosion. Black holes range in masses from three (average, small black holes) to an incomprehensibly large number (supermassive black holes: the largest in the galaxy). The Milky Way’s supermassive black hole is 3 million solar masses (equivalent to 3 million suns)!
Solar Nebula Contraction- heats up due to collision, flattens into an elliptical plane, spins faster due to angular ,momentum. Planet Formation: stage 1- a nebula is formed that attracts clumps of dust and gas that grows larger and attracts bigger objects (known as accretion). Stage 2- planetsimals are objects the size of moons that have strong enough gravitation to affect nearby moons, which cause larger bodies to collide and make protoplanets and protoson which are the planets that and now evolved today in our solar system. Stage 3- jovian planets form by two ideas- 1. 4 outer planets become large enough to accrete dust and gas forming gas giants or 2.. instabilities in the cooler region of solar system cause a collapse of initial interstellar cloud.
Waterworld planet is more Earth-like than any discovered before Astronomers spotted the waterworld orbiting a star in our cosmic backyard, raising the chances that we will eventually discover planets suitable for life Share483 • • • inShare0 [pic] • [pic]Email [pic][pic] Planet GJ 1214b orbiting its red dwarf star. The Hubble telescope will reveal whether it is suitable for life. Artist's impression: David A. Aguilar/CfA A giant waterworld that is wet to its core has been spotted in orbit around a dim but not too distant star, improving the odds that habitable planets may exist in our cosmic neighbourhood. The planet is nearly three times as large as Earth and made almost entirely of water, forming a global ocean more than 15,000km deep. Astronomers detected the alien world as it passed in front of its sun, a red dwarf star 40 light years away in a constellation called Ophiuchus, after the Greek for "snake holder".
Q60. The radius of the Earth and the radius of Jupiter are in the approximate ratio 1 : 11. The mass of the Earth and the mass of Jupiter are in the approximate ratio 1 : 320. You will need the following information. The Earth and Jupiter are spherical The volume of a sphere of radius r is (a) Show that the approximate ratio of the volume of the Earth to the volume of Jupiter is 1 : 1331.
The Milky Way Galaxy A spiral galaxy, type Sbc, centered in Sagittarius The Milky Way is the galaxy which is the home of our Solar System together with at least 200 billion other stars (more recent estimates have given numbers around 400 billion) and their planets, and thousands of clusters and nebulae, including at least almost all objects of Messier's catalog which are not galaxies on their own (one might consider two globular clusters as possible exceptions, as probably they are just being, or have recently been, incorporated or imported into our Galaxy from dwarf galaxies which are currently in close encounters with the Milky Way: M54 from SagDEG, and possibly M79 from the Canis Major Dwarf). See our Messier Objects in the Milky Way page, where details are given for each object to which part of our Galaxy it is related. All the objects in the Milky Way Galaxy orbit their common center of mass, called the Galactic Center (see below). As a galaxy, the Milky Way is actually a giant, as its mass is probably between 750 billion and one trillion solar masses, and its diameter is about 100,000 light years. Radio astronomial investigations of the distribution of hydrogen clouds have revealed that the Milky Way is a spiral galaxy of Hubble type Sb or Sc.
In physicist parlance, this means “about” or “roughly” or “within a factor of a few” or “ish”. So, ~3 means “kinda 3ish”. Why did we choose 3? An object that is 3 Earth-radii or 3 Earth-masses is probably still kinda terrestrial, but a planet that is 6 Earth-radii is probably more similar to a Jovian planet (Jupiter = 10 Earth
The friction heats the gases and causes them to glow from the stellar gas falling into the black hole over time. The author argues that astronomers discovered the first black hole shredder stars, using the ROSAT satellite, which was launched in 1990 with the objective of survey the low energy X-ray sky. According with her the calculations based on ROSAT observations show that a galaxy’s central black hole might gobble a close passing star every 100,000 years or so. Gezari provides evidence that when a black hole chows down on tidally disrupted debris, the temperature of the inspiraling gas can climb to 1 million degrees. Also, she argues that Most of the light is X-rays, but a tail of emission extends to longer, ultraviolet and optical wavelengths.