23rd Century
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23rd Century
Millennium: 3rd millennium
State leaders:
  • 22nd century
  • 23rd century
  • 24th century
  • 2200s
  • 2210s
  • 2220s
  • 2230s
  • 2240s
  • 2250s
  • 2260s
  • 2270s
  • 2280s
  • 2290s

The 23rd century of the anno Domini or Common Era in the Gregorian calendar will begin on January 1, 2201 and end on December 31, 2300.

Astronomical predictions for the 23rd century

List of the long total solar eclipses

  • July 27, 2204: Solar eclipse,[1] (7 min 22 s), of saros 139.
  • August 8, 2222: Solar eclipse,[2] (7 min 06 s), of saros 139.
  • August 18, 2240: Solar eclipse,[3] (6 min 40 s), of saros 139.
  • May 7, 2255: Solar eclipse,[4] (6 min 22 s), of saros 142.
  • August 29, 2258: Solar eclipse,[5] (6 min 09 s), of saros 139.
  • May 17, 2273: Solar eclipse,[6] (6 min 31 s), of saros 142.
  • May 28, 2291: Solar eclipse,[7] (6 min 34 s), of saros 142, "crowning" this series.

Other phenomena

  • 2209 and 2284: Perihelion of Comet Halley.
  • May 27, 2221: Near-Earth asteroid will pass Earth at a distance of 0.038 AU (5,700,000 km; 3,500,000 mi).[8]
  • 2221: Triple conjunction of Mars and Saturn.
  • December 2, 2223: At 12:39 UTC, Mars will occult Jupiter, this comes after a gap of 836 Earth years.[9]
  • 2227: Pluto's orbit takes it closer to the sun than Neptune.[10]
  • 2238/2239: Triple conjunction of Jupiter and Saturn (whose last triple conjunction was in 1981).
  • August 12, 2243: At 04:52 UTC, Venus will occult Saturn.
  • June 11, 2247: Transit of Venus.
  • March 4, 2251: At 10:52 UTC, Venus will occult Uranus.
  • In 2252, the planetoid Orcus will have completed one orbit of the Sun since its discovery in 2004, based upon current orbital measurements which give it a period of 248 Earth years.
  • August 1, 2253: Mercury occults Regulus (last occultation of Regulus by Mercury was on August 13, 364 BC).
  • June 9, 2255: Transit of Venus.
  • 2256 to 2258: Eris will reach perihelion for the first time since discovery.
  • 2265: Return of Great comet of 1861.
  • October 6, 2271: Close conjunction between Venus and Regulus, perhaps occultation of Regulus by Venus.
  • 2279: Triple conjunction of Jupiter and Saturn.
  • 2281, 2282: Grand Trine of Uranus, Neptune, and Pluto. This last occurred in 1769 and 1770.
  • Sunday, August 28, 2287: Closest perihelic opposition of Mars and Earth since Wednesday, August 27, 2003, at 55,688,405 km (34,603,170.6 mi; 0.372254 AU).
  • In 2288, the planetoid Quaoar will have completed one orbit of the Sun since its discovery in 2002, which, based upon current orbital measurements, gives it a period of 286 Earth years.

Social predictions

  • 2256: According to estimates made in 2006, the Centralia mine fire, which ignited under the town of Centralia, Pennsylvania in May 1962, may extinguish. The fire is expected to continue burning for at least 250 years as of 2006.[11]
  • 2300: The United Nations predicts that life expectancies in most developed countries will be 87-106 years, and slowly rising, though rising more slowly than before. However, these projections also show that life expectancies in poor countries will still be less than in rich countries in 2300, in some cases by as much as 20 years; the UN itself mentioned that gaps in life expectancy so far in the future will likely not exist, especially since the exchange of technology between rich and poor countries and the industrialization and development of poor countries will cause their life expectancies to fully converge with those of rich countries long before that point, similarly to how life expectancies between rich and poor countries have already been converging over the last 60 years as better medicine, technology, and living conditions became accessible to many people in poor countries. The UN has warned that these projections are uncertain, and caution that any change or advancement in medical technology could invalidate their projections.[12]
  • 2300: The United Nations predicts the world population in 2300 to be about 10 billion, but any changes in future birthrates or in projections of future life expectancy could invalidate those projections as well.[12]
  • 2300: Google's plan to index all the world's information and make it searchable could be achieved, according to Eric Schmidt.[13]
  • 2300: No new PESEL numbers can be allocated, the number required by law for all Polish citizens.

Calendric predictions

  • Unless changes are made in the religious calendar, in 2285, the Western Easter will fall on March 22 for the first time since 1818, the earliest possible date on which Easter can occur.[14]

Religious predictions


  • According to Jewish Calendars, in 2214, Rosh Hashanah will fall on October 6 for the first time.
  • According to one Jewish interpretation of creation, Adam was created in 3761 BC. It will have been 6,000 years since then in 2239, thereby initiating a spiritual Sabbatical on a global scale lasting a thousand years (the 7th Millennium on the Hebrew Calendar).[15] On the same basis, the common assumption[] in 16th-century Europe was that the current world would end in 2242. Even Nostradamus's well-known prediction that his prophecies would run out in 3797, first made in 1555 (see Nostradamus source-list), would seem to fit this tradition (3797 - 1555 = 2242).[16]
  • According to a number of Jewish scholars, the Year 6000 (2240) of the Hebrew calendar is the latest time for the initiation of the Messianic Age.

See Eschatology: Judaism.

  • According to Jewish Calendars, in 2260, Rosh Hashanah will fall on September 6 for the last time.

In fiction


Television and film

Star Trek

The majority of Star Trek and the first six movies as well as the eleventh, twelfth and thirteenth movies are set in the 23rd century. Dates were calculated from the Star Trek: The Next Generation episode "The Neutral Zone", which provided an exact calendar year for the first time. The 2009 Star Trek film and its two sequels established an alternate timeline; these events are specified as such.

Space Battleship Yamato

Other television and film


Audio dramas



Computer games

Arcade and console games

Other games


  1. ^ "Solar eclipse of July 27, 2204". Retrieved .
  2. ^ "Solar eclipse of August 8, 2222". Retrieved .
  3. ^ "Solar eclipse of August 18, 2240". Retrieved .
  4. ^ "Solar eclipse of May 7, 2255". Retrieved .
  5. ^ "Solar eclipse of August 29, 2258". Retrieved .
  6. ^ "Solar eclipse of May 17, 2273". Retrieved .
  7. ^ "Solar eclipse of May 28, 2291". Retrieved .
  8. ^ Dr. Lance A. M. Benner (May 28, 2013). "(285263) 1998 QE2 Goldstone Radar Observations Planning". NASA/JPL Asteroid Radar Research. Retrieved .
  9. ^ Larry Bogan. "Mutual Planetary Occultations Past and Future". www.bogan.ca. Retrieved 2020.
  10. ^ "Pluto to become most distant planet". Archived from the original on 2 September 2010. Retrieved 2016.
  11. ^ O'Carol, Eoin. 2010-02-05. "Centralia, Pa.: How an underground coal fire erased a town" Christian Science Monitor. Retrieved 2014-05-08.
  12. ^ a b United Nations Department of Economic and Social Affairs. World Population to 2300. 2004. Executive Summary, Page 2.
  13. ^ Mills, Elinor (2005-10-10). "Google reveals its 300-year plan". CNET News.com. Archived from the original on June 17, 2008.
  14. ^ "Dates of Ash Wednesday and Easter Sunday". navy.mil. Archived from the original on 2007-10-14.
  15. ^ Bromberg, Irv. "The Rectified Hebrew Calendar". Archived from the original on 28 November 2007. Retrieved .
  16. ^ See, for example, Lemesurier, P., The Unknown Nostradamus (O Books, 2003).
  17. ^ "Crunchyroll Adds Lily C.A.T. Video Anime to Catalog". Anime News Network. October 31, 2015. Retrieved 2015.
  18. ^ "This account has been suspended until 08 December, 2285 - League of Legends Community". Euw.leagueoflegends.com. Retrieved .

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