Y0 (other)
Y0 may refer to: * year 0, first year * Y0 class, a star class with brown dwarfs * Yakuza 0 See also * 0Y (other) *YO (other) Yo may refer to: Arts and entertainment Music * Yö, a Finnish rock band * "Yo (Excuse Me Miss)", a song by Chris Brown * ''Yo! MTV Raps'', a television show featuring rap music, later renamed as Yo! * "YO", an instrumental song by Linkin Park ...

Year 0
A year zero does not exist in the Anno Domini (AD) calendar year system commonly used to number years in the Gregorian calendar (nor in its predecessor, the Julian calendar); in this system, the year is followed directly by year (which is the year of the epoch of the era). However, there is a year zero in both the astronomical year numbering system (where it coincides with the Julian year ), and the ISO 8601:2004 system, a data interchange standard for certain time and calendar information (where year zero coincides with the Gregorian year ; . There is also a year zero in most Buddhist and Hindu calendars. History The ''Anno Domini'' era was introduced in 525 by Scythian monk Dionysius Exiguus (c. 470 – c. 544), who used it to identify the years on his Easter table. He introduced the new era to avoid using the '' Diocletian era'', based on the accession of Roman emperor Diocletian, as he did not wish to continue the memory of a persecutor of Christians. In the prefa ...
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Brown Dwarf
Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main sequence, main-sequence stars. Their mass is approximately 13 to 80 Jupiter mass, times that of Jupiter ()not big enough to sustain nuclear fusion of hydrogen into helium in their cores, but massive enough to emit some light and heat from the deuterium fusion, fusion of deuterium (deuterium, 2H). The most massive ones (> ) can lithium burning, fuse lithium (lithium-7, 7Li). Astronomers classify self-luminous objects by Stellar classification#Spectral types, spectral type, a distinction intimately tied to the surface temperature, and brown dwarfs occupy types M (2100–3500 Kelvin, K), L (1300–2100 Kelvin, K), T (600–1300 Kelvin, K), and Y ( 80 ''M''J), which have spectral classes L2 to L6. Spectral class T As GD 165B is the prototype of the L dwarfs, Gliese 229B is the prototype of a second ne ...
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Yakuza 0
''Yakuza 0'' is a 2015 action-adventure game developed by Ryu Ga Gotoku Studio and published by Sega. It is the sixth main installment in the ''Yakuza (franchise), Yakuza series'' and a prequel to the Yakuza (video game), original game. It was released for PlayStation 3 and PlayStation 4 in Japan in March 2015, and in North America and Europe for PlayStation 4 in January 2017. It was released on Windows on 1 August 2018 and on Xbox One on 26 February 2020. An enhanced version, titled ''Yakuza 0: Director’s Cut'', was released for Nintendo Switch 2 on 5 June 2025. Set in late 1988 during Japanese asset price bubble, Japan's bubble era, and seventeen years before the events of the Yakuza (video game), first game, the story follows Kazuma Kiryu and Goro Majima as they get embroiled in a conflict between various Yakuza factions for control of a patch of land known as the "Empty Lot". The game received generally favorable reviews from critics, and is largely responsible for the fra ...
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0Y (other)
0Y (zero Y) or 0-Y may refer to: *0 (year) *0y, the notation for zero yellow in CMYK See also *OY (other) Oy or OY may refer to: Arts and entertainment *Oy, an animal character in Stephen King's Dark Tower series * ''Oy'' (album), a studio album of Iranian singer-songwriter Mohsen Namjoo * ''Oy!'' (film), a 2009 Indian Telugu-language film starring ... * Y0 (other) * Year Zero (other) {{Letter-NumberCombDisambig ...
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