Nebulae

Hajanbs

The solar nebula theory posits that the solar system formed from a rotating cloud of gas and dust, which collapsed under its own gravity. As the nebula cooled, solid particles condensed and coalesced into larger bodies, with density and composition varying based on their distance from the Sun. Terrestrial planets, formed closer to the Sun, are denser and composed mainly of metals and silicates, while gas giants formed farther out, accumulating lighter gases like hydrogen and helium. This gradient in temperature and material availability accounts for the differing densities and chemical compositions of the planets we observe today.

planetary

Star, on A+.

Kickapoo rez in ks.

An absorption nebula is a dark nebula, which absorbs all incident radiation without reemission.

Emission nebula glow and reflection nebula reflect the light form other stars

gravity

Yes, they produce lots of stars. A nebula is often described as being a nursery of stars.

Nebulae are primarily composed of hydrogen and helium, which account for the majority of their mass. They also contain trace amounts of heavier elements, such as carbon, oxygen, nitrogen, and sulfur, often produced from previous generations of stars. These elements can exist in various forms, including gas, dust, and plasma, and play a critical role in star formation and the chemical evolution of the galaxy.

Brats of the Lost Nebula was created on 1998-10-10.

The Andromeda Nebula was created in 1967.

A nebula becomes a star through a process called stellar formation. Initially, regions within the nebula, composed of gas and dust, collapse under their own gravity, leading to increased density and temperature. Once the core temperature reaches around 10 million Kelvin, nuclear fusion ignites, converting hydrogen into helium and releasing energy, which marks the birth of a new star. Over time, the star will evolve, eventually entering different stages of its life cycle depending on its mass.

Pink

Emission spectrum is produced by nebulae consisting of atoms that release photons when electrons jump from high-energy states to lower-energy states.

Oh, dude, non-examples of a nebula would be like a grilled cheese sandwich, a unicorn, and my ability to wake up before noon. So yeah, basically anything that's not a giant cloud of dust and gas in space forming new stars. But hey, who needs nebulae when you have grilled cheese, right?

A nebula becomes dense at its center primarily due to gravitational forces. As gas and dust particles within the nebula clump together, their gravitational attraction pulls surrounding material inward, increasing density in that region. This process can lead to the formation of protostars as the core becomes hot and dense enough to initiate nuclear fusion. Additionally, external triggers, such as shock waves from nearby supernovae, can compress parts of the nebula, enhancing density further.

The types of nebulae that exist in the universe include bright, dark and emission nebulae. Different nebulae are often named for their shape. More information can be found on "Sea and Sky".

The "Eagle Nebula" cluster of stars is classified as being part of a diffuse emission nebula. It can be found in the "Serpens" constellation of stars and is thought to be around 5.5 million years old.

To create a Nebula effect on Snapchat, start by opening the app and selecting the camera view. Then, swipe through the lenses until you find the Nebula filter, or tap the smiley face icon to access the lens carousel. Once you select the Nebula lens, point your camera at your subject, and the effect will automatically apply. You can then take a photo or record a video with the Nebula filter active.

The exact number of nebulae is difficult to determine, as new ones are constantly being discovered and observed. However, astronomers estimate that there are thousands of known nebulae in our Milky Way galaxy alone. Additionally, many more may exist in other galaxies, potentially leading to millions of nebulae throughout the universe. The Hubble Space Telescope and other observatories continue to reveal new nebulae, expanding our understanding of these fascinating cosmic structures.

The Horsehead Nebula can be found in the constellation Orion. Its name comes from its resemblance to a horse's head. The Horsehead Nebula was first discovered by Williamina Fleming in 1888.

The "Asteroid Belt" between Mars and Jupiter, once thought to be a destroyed planet, is most probably the result of Jupiter's powerful gravity preventing small bodies from aggregating into decent-sized planets (the biggest asteroid, Ceres, has received the designation of "dwarf planet").

Most of the material which might have gone into planet-making probably fell into Jupiter, with little Mars just getting two smallish chunks which became its moons, Phobos and Deimos. On the other side of Jupiter, Saturn competed for asteroids, and between those two giants the region was pretty well swept up.

There are still some asteroids scattered throughout the Solar System, including a few that are close enough to Earth to concern us.