宇宙の距離と年齢 (https://startide.jp/astro/distances/) - 削除

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宇宙

宇宙年齢: 13.799±0.021 Gyr (Lambda-CDM model, 2015)
Age of the universe - Wikipedia
宇宙の年齢 - Wikipedia
Timeline of the formation of the Universe - Wikipedia

comoving distance and light travel time

局部銀河群

大マゼラン雲までの距離: 49.97±0.19(statistical)±1.11(systematic) kpc / 163,000 ly (2013)
[1303.2063] An eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent

銀河系

銀河中心までの距離: 8.178 ±0.013(stat) ±0.022(sys.) kpc (2019)
[1904.05721] A geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty
銀河中心までの距離: 7.9±0.3 kpc /26,000±1,000 ly (Gaia, 2017)
Distance & Speed Of Sun's Orbit Around Galactic Centre Measured - Universe Today
銀河円盤の年齢: 8.8±1.7 Gyr (2005)
[astro-ph/0506458] The age of the Galactic thin disk from Th/Eu nucleocosmochronology III. Extended sample

ω星団の年齢: 11.52 Gyr (2010)
[1001.4289] Accreted versus In Situ Milky Way Globular Clusters

換算

1 pc = 3.261 563 777 ly

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