How many stars in universe
How many planets in universe
How many galaxies in universe
Answers
Answer:
approximately 198 billion in our galaxy .
How many planets in universe?
Answer:-With ~2 trillion galaxies within our observable Universe, we can extrapolate our Universe's planetary total. There are ~1025 planets that orbit stars, with some ~1026-1030 additional starless planets.
How many stars in universe?
Answer:- Multiplying that by the Milky Way's estimated 100 billion stars results in a large number indeed: 1,000,000,000,000,000,000,000,000 stars, or a "1" with 24 zeros after it (1 septillion in the American numbering system; 1 quadrillion in the European system)
How many galaxies in universe?
Answer:-In 2021, data from NASA's New Horizons space probe was used to revise the earlier estimate to roughly 200 billion galaxies (2×1011), Most galaxies are 1,000 to 100,000 parsecs in diameter (approximately 3,000 to 300,000 light years) and are separated by distances on the order of millions of parsecs (or megaparsecs).