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31.55815 Ms (365 d 6 h 9 min 10 s): The length of the true year, the orbital period of the Earth 126.2326 Ms (1461 d 0 h 34 min 40 s): The elected term of the President of the United States or one Olympiad. 10 9: gigasecond Gs decades, centuries, millennia (1 Gs = over 31 years and 287 days = 1,000,000,000 s) 1.5 Gs: Unix time as of Jul 14 02: ...
1 week, 4 days, 13 hours, 46 minutes, 40 seconds 10 −9 s ns nanosecond: 10 9 s Gs gigasecond 31.7 years 10 −12 s ps picosecond: 10 12 s Ts terasecond 31,700 years 10 −15 s fs femtosecond: 10 15 s Ps petasecond 31.7 million years 10 −18 s as attosecond: 10 18 s Es exasecond 31.7 billion years 10 −21 s zs zeptosecond 10 21 s Zs ...
Pioneer 10 passes within 3.4 light-years of Ross 248. [174] 42,200 Voyager 2 passes within 1.7 light-years of Ross 248. [174] 44,100 Voyager 1 passes within 1.8 light-years of Gliese 445. [174] 46,600 Pioneer 11 passes within 1.9 light-years of Gliese 445. [174] 50,000 Estimated atmospheric lifetime of tetrafluoromethane, the most durable ...
10 times the length of the previous cosmological decade, with CD 1 beginning either 10 seconds or 10 years after the Big Bang, depending on the definition. eon: 10 9 yr: Also refers to an indefinite period of time, otherwise is 1 000 000 000 years. kalpa: 4.32 × 10 9 yr: Used in Hindu mythology. About 4 320 000 000 years. exasecond: 10 18 s ...
The product of Simon Newcomb's J1900.0 mean tropical year of 31 556 925.9747 ephemeris seconds and a speed of light of 299 792.5 km/s produced a light-year of 9.460 530 × 10 15 m (rounded to the seven significant digits in the speed of light) found in several modern sources [10] [11] [12] was probably derived from an old source such as C. W ...
This year witnessed the U.S. dropping two atomic bombs on Japan, leading to over 130,000 casualties. Additionally, the firebombing of Tokyo resulted in the deaths of between 80,000 and 130,000 ...
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. [89]
There's still more than a month until Inauguration Day, but President-elect Donald Trump's administration is already off to a rocky start. During his first four years, Trump had more failed ...