22nd century

The 22nd century of the Common Era will span the years 2101–2200 of the Gregorian calendar.

Astronomical predictions for the 22nd century

• There will be 239 lunar eclipses.
• A total solar eclipse exceeding 7 minutes of totality will occur on June 25, 2150. This will be the first time this has happened in 177 years; the last one occurred on June 30, 1973 when the Concorde prototype followed the totality spot during 73 minutes.

But eclipse fans of this epoch will not have to wait nearly so long for it to happen again, as on July 5, 2168 an eclipse with 7 minutes and 26 seconds of totality will occur. Lastly, on July 16, 2186 an eclipse of 7 minutes and 29 seconds (close to the theoretical maximum) will occur. This is predicted to be the longest eclipse during the 8,000 year period from 3000 BC to AD 5000 (eclipse predictions by Fred Espenak, NASA/GSFC.DEPP). All three long-duration eclipses are a part of the same Saros series, Saros 139.

• August, 2113: First time Pluto reaches aphelion since its discovery.
• December 11, 2117: Transit of Venus.
• 2123: Triple conjunction Mars-Jupiter.
• September 14, 2123: At 15:28 UTC, Venus will eclipse Jupiter.
• December 8, 2125: Transit of Venus.
• July 29, 2126: At 16:08 UTC, Mercury will occult Mars.
• March 10, 2130: At 07:32 UTC, Sun passes through solar system barycenter.
• December 3, 2133: At 14:14 UTC, Mercury will occult Venus.
• 2134: Comet Halley will return to the inner solar system.
• 2148: Triple conjunction Mars-Saturn.
• 2170: Triple conjunction Mars-Jupiter.
• 2177: "First Plutonian anniversary" of the dwarf planet's discovery, Given that Pluto's orbit is just under 248 Earth years.
• 2185: Triple conjunction Mars-Saturn.
• 2187: Triple conjunction Mars-Saturn.
• September 2, 2197: Venus occults Spica. Last occultation of Spica by Venus was on November 10, 1783.

Science Predictions

• 2200: Formation of a Type I civilization under the Kardashev scale, according to Nikolai Kardashev's extrapolation of 1% energy usage growth per year.

Other Predictions

• March 17, 2160 - Unless changes are made as to when Easter can be observed, this particular March 17th will fall within Holy Week for the first time since 2008 and fall on the same day (Monday) as it did in that year, likely requiring the movement of the Feast of Saint Patrick's Day to another date.[7]