The oldest known nebula is the Cassiopeia A supernova remnant, which is estimated to be around 330 years old in human terms since its explosion was observed in the 17th century. However, in terms of its material, the remnants may contain elements formed in previous stars that are billions of years old. Other ancient nebulae, like the planetary nebulae, can also contain stellar material that is over 10 billion years old, stemming from the early universe. Thus, the age of nebulae can vary widely depending on how one defines "oldest."
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.
Nebula are clouds of interstellar hydrogen and other gasses that span light years. Some may be dozens or hundreds of light years across. Galaxies were once referred to as nebula. These are vast collections of stars, often a hundred thousand light years in diameter (as is our own beloved Milky Way) or more.
Emission nebula glow and reflection nebula reflect the light form other stars
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An absorption nebula is a dark nebula, which absorbs all incident radiation without reemission.
the oldest are old bcause they are old
A planetary nebula consists of gas ejected from old red giant stars.
the oldest map is about 375years old!
The crab nebula has a diameter of about 11 light years. For comparison, the distance from the Sun to Neptune is only 0.000474385765 light years.
The oldest Flute is 35000 years old.
the oldest guinea pig is 10 years old.
the oldest man is 426 years old
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.
The oldest man is 124 but the oldest woman is 127.
The oldest man in the old testament and the whole Bible was, Methuselah.
The oldest canary on record lived to be 25 years old.
The oldest man on record was 122 years old, not 179 years old.