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Memory Beta, non-canon Star Trek Wiki
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Memory Beta, non-canon Star Trek Wiki

An example of an F-class star.

An F-class (or F-type) star is white and is made up of hydrogen and ionized metals. Also in the star there is calcium and iron. The temperature in this type of star is between 6,000 and 7,500 K. (ST reference: Star Charts)

Type F0 V stars are 7 times brighter than Sol and have 1.6 times more mass. Their habitable zone ranges from 2.1-3.5 AU and are 1-6 billion years old. Type F5 V stars are 2.5 times brighter than Sol and have 1.3 times more mass. Their habitable zone ranges from 1.2-2.1 AU and are 1-6 billion years old. (Decipher RPG module: Worlds)

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Stellar classification
By class and type class O blue-violet starclass B blue starclass A blue-white starclass F white star (white dwarf) • class G yellow star (yellow dwarfyellow giant) • class K orange star (orange giant) • class M red star (red dwarfred giant) • boson starbrown dwarfgreen starN-type starR-type starS-type starD-type star
By size or makeup black hole/black starcarbon stardwarf star (brown dwarfred dwarfwhite dwarfyellow dwarf) • giant star (blue giantred giantorange giantyellow giant) • Lazarus starmicrostarneutron star (collapsarmagnetarpulsar) • protostarsupergiant starvariable starwhite holeWolf-Rayet star
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