Nebulae

Judaism/Israelite Religion did not diffuse outside of the southern Levant until the Babylonian Exile period when the elite from Judea were deported to Babylon. It became a rather large community there before returning to the southern Levant under the permission of King Cyrus of Persia. During the Persian and Hellenic Greek Periods, Judaism remained a Middle Eastern religion. When the Romans exiled the Jews from Judea after the Zealot Revolts and the Bar Kochba Revolts, Jews were scattered to all of the corners of the Roman Empire.

In the post-Roman Empire period, Jews migrated from country to country whenever they were exiled or offered much better opportunities elsewhere. In this way, Jews diffused into many different European and Arab societies, as well as becoming a small part of India and China and later the New World.

If the Helix Nebula was an ocean, our Sun would be like a grain of sand. Nebulas are so huge that it takes light thousands of years to cross one, and light is the fastest thing we know of.

Dark nebulae are dense clouds of gas and dust in space that block the light from objects behind them, making them appear as dark patches against the background of stars and other celestial bodies. They are often sites of star formation, as their dense material can collapse under gravity to form new stars. These nebulae are typically cold and thick, containing a mixture of hydrogen, helium, and other elements, which contribute to their opacity. Examples include the Horsehead Nebula and the Coalsack Nebula.

The time it takes for crystals to form can vary widely depending on several factors, including the type of material, temperature, and environmental conditions. In some cases, crystals can form in just a few seconds, while in others, it may take days, weeks, or even years for larger crystals to develop. For example, salt crystals can form rapidly from evaporating seawater, whereas minerals in geological settings may take thousands of years to crystallize. Overall, the process is highly variable and context-dependent.

Because stellar means star& and nebulae create stars.

nebula = עַרְפִילִית (arfilit)

If there is sufficient mass and material it will contract due to gravity it may then become a star. The type of star depends on how much mass was present

Planetary nebulae (the cat's eye nebula)

Emission nebulae (the orion nebula)

Dark nebulae (the horsehead nebula)

Supernova remnant nebulae (the crab)

The most massive star known is R136A1 - a rather disappointing name - has a temperature of about 53,000 degrees kelvin.

Our Sun for comparison is a mere 5,778 degrees kelvin.

List some events that can disturb the equilibrium of a nebula and cause it to being to

Pierre Simon de laplace

ursa major.

A nebula is a cloud of substances and gases that can form into a star. A star is a ball of hydrogen and helium with trace amounts of other gases. A supernova is the death of a star.

The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests that the Solar System formed from nebulous material.

Hajanbs

A nebula star, or protostar, begins to burn primarily due to gravitational collapse and the resulting increase in temperature and pressure at its core. As the cloud of gas and dust collapses under its own gravity, the temperature rises sufficiently to initiate nuclear fusion, primarily converting hydrogen into helium. This fusion process releases immense amounts of energy, causing the star to glow and eventually enter the main sequence phase of its life cycle.

The nebular hypothesis is a scientific theory that explains the formation of the solar system. It suggests that the solar system formed from a rotating cloud of gas and dust, known as a solar nebula, which collapsed under its own gravity. As the nebula contracted, it spun faster, leading to the formation of a flattened disk, with the Sun forming at the center and planets forming from the material in the disk. This model helps to explain the observed distribution of planets and their orbits in our solar system.

The remaining core of a planetary nebula is called a white dwarf. This stellar remnant is composed mainly of carbon and oxygen and represents the final stage in the evolution of stars that were once similar in size to our Sun. As the outer layers of the star are expelled, the white dwarf gradually cools and dims over time.

the formation of the universe

The Sun.

Yes, a nebula is far larger than a neutron star. A neutron star is a few miles across. A nebula is light years across.

They collided and stuck together.

The Crab Nebula, of which the Crab Pulsar is a part of, got its name in 1840 when the William Parsons, made a drawing of the nebula that he thought looked like a crab.

Pretty simple if you think about it.

The central star of the Ring Nebula is a white dwarf known as HD 229236. It is the remnant core of a low to intermediate mass star that has exhausted its nuclear fuel and shed its outer layers. The white dwarf is hot and compact, surrounded by the colorful nebula that was once its outer layers.