New stars form in younger galaxies and nebula that have enough cosmic matter to form the foundation for new stars. These galaxies are commonly referred to as star nurseries.
New stars form most everywhere, but particularly in dark nebulae
A very good example of young stars can be seen with the naked eye -- the constellation known as the Pleiades, also known as "the Seven Sisters". This is a small, V-shaped constellation of stars in the constellation Taurus. The stars in this constellation are less than 100 million years old, just babes in celestial terms.
in the spiral arms
new stars form in a nebula. a nebula is a cloud of dust and gas pulled together by gravity . the temperature rises. hydrogen changes into helium .the particles release energy. The particles become a star.
Star formation is the process by which dense regions, referred to as stellar nurseries, collapse to form stars. Another theory proposes that new stars may form by the coalescence of two stars of lower mass.
A star is formed out of cloud of cool, dense molecular gas. In order for it to become a potential star, the cloud needs to collapse and increase in density.
There are two common ways this can happen: it can either collide with another dense molecular cloud or it can be near enough to encounter the pressure caused by a giant supernova. Several stars can be born at once with the collision of two galaxies. In both cases, heat is needed to fuel this reaction, which comes from the mutual gravity pulling all the material inward.
Nebulae.
For example, most scientists believe that our own sun (and planetary system) along with some nerby stars were formed by the collapse of a nebulae originated by a supernova.
why is that?
Because there exist some heavy elements here on Earth like uranium. And uranium is only formed in the core of massive stars (you can take my word for that or investigate on nuclear fusion). These massive stars usually end as supernovas or black holes (but of course this particular supernova did not go into black hole stage or Earth would not be here today).
Stars are formed in Nebulae (the plural of nebula)....
Stars typically form in the nebula cloud disks of newly forming galaxies.
Various types of Pressure Concussions 'play' various roles, yet a constant requirement is a nice thick cloud of gas and dust to form those accretion disks.
The Spiral Arms
I said WHERE?!
Not all stars belong to galaxies. Galaxies collide, and this process strips stars from their parent galaxy and hurls them into intergalactic space. The Hubble Space Telescope has detected a few hundred very bright, orphan, stars between the galaxies in the Virgo Cluster. Although stars most certainly form inside some collection of matter such as a galaxy, their history after formation can include being ejected from a galaxy and becoming an orphan star.
Older stars are generally towards the centre of a galaxy as they will be the first to accumulate around the galactic centre. Because they are older, there is less "free" hydrogen, so new star formation will occur wherever, there is enough matter to form a new star. This generally is around the outer edges of a galaxy.
Star Wars Movies do not affect the formation of magma.
They can be outside a galaxy. For a start, stars formed within a galaxy can be catapulted out of a galaxy (when they come close to another star, and change their velocity as a result).
In molecular clouds, such as the Orion Nebula.
Mainly in that gravity is involved in both cases.
A Starburst Galaxy is a galaxy with an exceptionally high rate of star formation, compared to other galaxies.Galaxies usually have a burst of star formation after a collision or close encounter between two galaxies.Because of the rate of star formation and the amount of available hydrogen, starburst galaxies are presumed to be temporary.M82 (Cigar Galaxy) is a well known starburst galaxy [See related link]
I said WHERE?!
the ellipitical galaxy is the hottiest galaxy
For sure. The current rate of star formation is about one a year.
Most of the times, the brightest part of the galaxy is at the ceentre due the higher density of stars .Also if the galaxy is a spiral then the brightest part of the galaxy are the spiral arms because they are the star formation areas in the galaxy
The "real" answer is a protogalaxy or primeaval galaxy as these are the first stages in the formation of a galaxy.However, it's more than likely, the question has to do with new star formation, in which case, it will be a spiral galaxy (but the galaxy is not young) Our galaxy - the Milky Way - is about 13.2 billion years old - almost as old as the Universe itself.
A small galaxy with those characteristics would be a dwarf elliptical galaxy, such as M32 (a companion to Andromeda). Most elliptical galaxies are larger than average galaxies, and some are among the largest, containing as many as a trillion (1012) stars.Elliptical galaxies generally have few young stars and more dust when compared to spiral galaxies such as the Milky Way or Andromeda.
Because it's within this area that most star formation takes place.
Star formation starts in a nebula.
get a wonderful star for you're troubles and for getting "first place" and then you get to dread Loopdyswoop galaxy.