In detail, though, the star formation rate depends on many other factors, including the temperature of the gas, turbulent motions, the gravitational potential of the surroundings,
magnetic effects, ionizing photons from nearby stars
, and more.
What are the 7 parts of star formation?
- STAGE 1: AN INTERSTELLAR CLOUD.
- STAGE 2: A COLLAPSING CLOUD FRAGMENT.
- STAGE 3: FRAGMENTATION CEASES.
- STAGE 4: A PROTOSTAR.
- STAGE 5: PROTOSTELLAR EVOLUTION.
- STAGE 6: A NEWBORN STAR.
- STAGE 7: THE MAIN SEQUENCE AT LAST.
What 3 events can trigger a star’s formation?
Abstract. Star formation can be triggered by
compression from wind or supernova-driven shock waves that sweep over molecular clouds
.
What are the 4 factors that will resist the formation of a star?
| Term What does star formation generally occur from? Definition the cores of giant molecular clouds | Term What are the four factors that resist the collapse of a cloud? Definition 1. thermal energy (pressure) 2. magnetic fields 3. rotation 4. turbulance | Term What is another word for rotation? Definition angular momentum |
|---|
What are the evidence of star formation?
Star Formation
Stars are born within the clouds of dust and scattered throughout most galaxies
. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
What is star life cycle?
A star’s life cycle is
determined by its mass
. The larger its mass, the shorter its life cycle. A star’s mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born.
How does a star start?
A star is born
when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion
. All stars are the result of a balance of forces: the force of gravity compresses atoms in interstellar gas until the fusion reactions begin.
How are stars made step by step?
- Star Formation Shapes the Appearance of the Universe and Provides the Sites for Planets.
- Step 1: initial collapse of an interstellar cloud.
- Step 2: the cloud fragments into clumps . The fragmentation is related to turbulence in the collapsing cloud. ( …
- Step 3: The clumps collapse into a stars.
How is a star born step by step?
- stars are born in vast clouds of gas and dust.
- stars spend most of their lives on the main sequence fusing hydrogen gas to helium gas.
- stars eventually swell up to form a red giant star.
- stars like the Sun end their lives as planetary nebulae and white dwarfs.
What are the 7 types of stars?
There are seven main types of stars. In order of decreasing temperature,
O, B, A, F, G, K, and M
.
Which star is the hottest?
The hottest one measures ~210,000 K; the hottest known star.
The Wolf-Rayet star WR 102
is the hottest star known, at 210,000 K.
What is the biggest star?
The cosmos is full of objects that defy expectations. Although it’s difficult to pin down the exact traits of any given star, based on what we know, the largest star is
UY Scuti
, which is some 1,700 times as wide as the Sun.
Why is star formation important?
As astronomer John Bally of the University of Colorado puts it, “Star formation is
the single most important process for determining the fate and evolution of normal matter in the universe
.” Yet until recently, the details of how stars are born were literally shrouded in mystery: Stars form within dense clouds of dust …
What is the first stage of a star’s life cycle?
Stage 1- Stars are
born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity
. This image shows the Orion Nebula or M42 . Stage 2 – A region of condensing matter will begin to heat up and start to glow forming Protostars.
Can it rain with stars?
Although there may be very little real rain,
some photography tricks can instead make the stars appear to rain onto the surrounding mountains
, as seen in this image taken on 21 May 2013 by Diana Juncher, a PhD student in astronomy at the Niels Bohr Institute, Denmark.
What are the 5 stages of a star?
- A nebula. A star forms from massive clouds of dust and gas in space, also known as a nebula.
- Protostar. As the mass falls together it gets hot.
- Main sequence star.
- Red giant star.
- White dwarf.
- Supernova.
- Neutron star or black hole.
