Astronomy

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Astronomy is the scientific study of celestial objects such as stars, planets, comets, and galaxies and other phenomena that originate outside of planetary atmospheres. It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.

The Starfleet Science Corps undertakes the study of astronomy though the usage of specialized laboratories aboard starships or starbases.

Contents

[edit] Sub-Fields of Astronomy

[edit] Planetary Science

Planetary Science is the scientific study of planets, moons, and planetary systems. It studies objects ranging in size from micrometeoroids to gas giants, aiming to determine their composition, dynamics, formation, interrelations and history.

[edit] Stellar Astronomy

Stellar Astronomy is the study of stars and stellar evolution is fundamental to understanding the universe. The astrophysics of stars has been determined through observation and theoretical understanding; and from computer simulations of the interior.

[edit] Galactic Astronomy

Galactic Astronomy is the study of our own Milky Way Galaxy and all its contents, such as nebulae and black holes.

[edit] Extragalactic Astronomy

Extragalactic Astronomy is the branch of astronomy concerned with objects outside our own Milky Way Galaxy. In other words, it is the study of all astronomical objects which are not covered by galactic astronomy.

[edit] Cosmology

Cosmology, as a branch of astronomy, is the study of the largest-scale structures and dynamics of our universe and is concerned with fundamental questions about its formation and evolution.

[edit] Planetary Classification

The United Federation of Planets utilizes a standardized categorization system for planets based on various factors such as atmospheric composition, surface temperature, vegetation and size. Each class is designated with a letter, for example, Class M, which is based on the Vulcan terminology "Minshara class", and is the most suitable for humanoid long-term habitation.

Class Description Examples Age (Billions/Years) Diameter (1000's/Kilometers) Surface Atmosphere Solar System Zone Lifeforms
Class A Geothermal Gothos 0 to 2 1 to 10 Partially molten Primarily hydrogen compounds Ecosphere Unknown
Class B Geomorteus Mercury 0 to 10 1 to 10 Partially molten, high surface temperature Extremely Tenuous to Negligible Hot Unknown
Class C Geoinactive Pluto, Psi 2000 2 to 10 1 to 10 Low surface temperature Frozen Cold Unknown
Class D Geoterminal Regula, Luna 2 to 10 0.1 to 4 Barren and cratered Negligible Ecosphere None
Class E Geoplastic Excalbia 0 to 2 10 to 15 Molten, high surface temperature Hydrogen compounds and reactive gases Ecosphere Carbon-cycle
Class F Geometallic Janus IV 1 to 3 10 to 15 Volcanic eruptions due to molten core Hydrogen Compounds Ecosphere Silicon-based
Class G Geocrystalline Delta Vega 3 to 4 10 to 15 Still crystalizing Carbon dioxide, some toxic gases Ecosphere Single-celled organisms
Class H Desert Nimbus III, Rigel XII, Tau Cygna V 4 to 10 8 to 15 Hot and arid, little surface water Heavy Gases, Metal Vapors Ecosphere, cold Drought- and radiation-resistant
Class I Gas supergiant Q'tahL 2 to 10 140 to 1,000 Tenuous, comprised of gaseous hydrogen and hydrogen compounds Varying zones, water vapor may be present Ecosphere, Cold Unknown
Class J Gas giant Jupiter, Saturn 2 to 10 50 to 140 Tenuous, comprised of gaseous hydrogen and hydrogen compounds Varying Zones Ecosphere, Cold Hydrocarbon-based
Class K Adaptable Mars, Mudd, Elba II 4 to 10 5 to 10 Barren, little surface water Carbon dioxide, thin Ecosphere Single-celled Organisms
Class L Marginal Indri VIII, Fallon 4 to 10 10 to 15 Rocky and barren, little surface water Oxygen, argon, carbon dioxide Ecosphere Plants, suitable for humanoids
Class M Terrestrial Earth, Vulcan, Bajor, Cardassia Prime 3 to 10 10 to 15 Surface water abundant Nitrogen, oxygen Ecosphere Plants and Humanoids
Class N Reducing Venus 3 to 10 10 to 15 High surface temperature due to greenhouse effect Carbon Dioxide, Sulfides Hot Unknown
Class O Pelagic Argo 3 to 10 10 to 15 Liquid water covers 80% or more of surface Nitrogen, oxygen Ecosphere, Cold Water-based
Class P Glaciated Exo III 3 to 10 10 to 15 Water ice covers 80% or more of surface Nitrogen, oxygen Cold Hardy Plants and Animals
Class Q Variable Genesis Planet 2 to 10 4 to 15 Highly Variable Highly Variable All Highly Variable
Class R Rogue Founders' Homeworld, Dakala 2 to 10 4 to 15 May be temperate due to geothermal venting Negligible *Outside Solar System Non-Photosynthetic
Class S Small ultragiant 2 to 10 10,000 to 50,000 Tenuous, composed of gaseous hydrogen and hydrogen compounds Varying Zones Cold Unknown
Class T Large ultragiant 2 to 10 50,000 to 120,000 Tenuous, composed of gaseous hydrogen and hydrogen compounds Varying Zones Cold Unknown
Class Y "Demon" Silver Blood planet 2 to 10 10 to 15 Temperatures can exceed 500° Kelvin Thermionic radiation All Mimetic

[edit] Star Chart of Local Space

Image:OFMap.jpg

[edit] Additional

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