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6 × 10 43 Qs (2 × 10 66 years): The approximate lifespan of a black hole with the mass of the Sun [21] 4 × 10 63 Qs (1.3 × 10 86 years): The approximate lifespan of Sagittarius A*, if uncharged and non-rotating [21] 5.4 × 10 83 Qs (1.7 × 10 106 years): The approximate lifespan of a supermassive black hole with a mass of 20 trillion solar ...
It represents fifteen minutes of fame. Some multiples are: 1 kilowarhol – famous for 15,000 minutes, or 10.42 days. A sort of metric "nine-day wonder". 1 megawarhol – famous for 15 million minutes, or 28.5 years. First used by Cullen Murphy in 1997. [71]
Million years ago, abbreviated as Mya, Myr (megayear) or Ma (megaannum), is a unit of time equal to 1,000,000 years (i.e. 1 ... (a thousandth of a year, or 8 hours).
(10 9 hours is roughly 114,080 years.) About 10 9 days ago, Australopithecus, an ape-like creature related to an ancestor of modern humans, roamed the African savannas. (10 9 days is roughly 2.738 million years.) About 10 9 months ago, dinosaurs walked the Earth during the late Cretaceous. (10 9 months is roughly 83.3 million years.)
A megaannus (Ma) represents one million (10 6) years. The geologic time scale or geological time scale ( GTS ) is a representation of time based on the rock record of Earth . It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to ...
For many Americans, commuting to work is part of their everyday life. The most recent data show the average American commuter spends around 25.6 minutes on the way to work each day.
A light-year is the distance light travels in one Julian year, around 9461 billion kilometres, 5879 billion miles, or 0.3066 parsecs. In round figures, a light year is nearly 10 trillion kilometres or nearly 6 trillion miles. Proxima Centauri, the closest star to Earth after the Sun, is around 4.2 light-years away. [90]
The lifespan of the Devas (gods) lasts for 100 of their years. [21] 24 hours (1 day & night) of Devas = 1 solar year (Sun's two 180-day motions: northern and southern) 30 days (1 month) of Devas = 30 solar years (1 year of Pitris) 12 months (1 year) of Devas = 360 solar years; 100 years (lifespan) of Devas = 36,000 solar years