Robert: Created page with "{{Infobox planet |name = Arbor |image = Arbor_from_orbit.jpg |classification= Verdant Class M |shorthand = VCM-O-T |subclasses = Verdant, Oceanic, Temperate |atmosphere = 78% nitrogen, 21–22% oxygen (elevated due to prolific photosynthesis), trace argon and carbon dioxide |hydrosphere = 78–82% (vast interconnected oceans, numerous mega-lakes, extensive river networks and wetlands) |biomes = Expansive rolling grassy plains, dense te..."

2026-03-10T07:26:07Z

Created page with "{{Infobox planet |name = Arbor |image = Arbor_from_orbit.jpg |classification= Verdant Class M |shorthand = VCM-O-T |subclasses = Verdant, Oceanic, Temperate |atmosphere = 78% nitrogen, 21–22% oxygen (elevated due to prolific photosynthesis), trace argon and carbon dioxide |hydrosphere = 78–82% (vast interconnected oceans, numerous mega-lakes, extensive river networks and wetlands) |biomes = Expansive rolling grassy plains, dense te..."

New page

{{Infobox planet
|name = Arbor
|image = Arbor_from_orbit.jpg
|classification= Verdant Class M
|shorthand = VCM-O-T
|subclasses = Verdant, Oceanic, Temperate
|atmosphere = 78% nitrogen, 21–22% oxygen (elevated due to prolific photosynthesis), trace argon and carbon dioxide
|hydrosphere = 78–82% (vast interconnected oceans, numerous mega-lakes, extensive river networks and wetlands)
|biomes = Expansive rolling grassy plains, dense temperate and subtropical forests, riparian zones around lakes and rivers, scattered highlands with coniferous stands
|climate = Warm-temperate (global average 18–21°C), high precipitation, mild seasonal variation with no permanent ice caps or extreme deserts
|gravity = 0.98 g
|diameter = 12,800 km
|age = 4.8 billion years
|habitability = Superhabitable; exceptionally high biodiversity, fertile alluvial and volcanic soils, stable axial tilt and magnetic field
|life = Abundant multicellular carbon-based flora and fauna; complex ecosystems including large herbivores on the plains and arboreal species in the forests; potential for pre-sapient or sapient development
|orbital_period= 372 Earth days
|moons = 2 (one large major moon "Lunara", one small irregular moonlet)
|species = Humans; various non-sapient fauna
|affiliation = Independent (pre-Federation contact); limited diplomatic ties with nearby systems
|features = Bioluminescent fungal networks in deep forests at night, massive freshwater lake systems rivaling Earth's Great Lakes in scale, frequent but gentle auroras due to strong magnetic field interacting with solar wind
}}

'''Arbor''' is a '''Verdant Class M (Oceanic-Temperate sub-class)''' planet. It has lush, vegetation-dominated landmasses, extensive hydrosphere, and superhabitable conditions that support one of the richest known terrestrial biospheres outside of Class M garden worlds like Earth.

== Physical characteristics ==

Arbor orbits a stable G8V yellow dwarf star (Valhalla) at approximately 1.05 AU, placing it firmly within the habitable zone. The planet has a diameter of 12,800 km and a surface gravity of 0.98 g, making it slightly smaller and less massive than Earth but with comparable density due to a large iron-nickel core.

The hydrosphere covers approximately 78–82% of the surface, dominated by a single global ocean divided into several named seas by large continental landmasses and archipelagos. Freshwater mega-lakes and extensive river systems feed into these oceans, creating broad deltas and wetland transitions that blur the boundary between land and water.

Land coverage consists primarily of three large continents and thousands of islands. The continents feature vast interior grassy plains (often called the "Verdant Steppes"), bordered by dense temperate forests on windward slopes and highlands.

== Climate and biosphere ==

Arbor's climate is classified as warm-temperate with high overall precipitation driven by extensive evaporation from the oceans and orographic effects from mountain ranges. Average surface temperature ranges from 18–21°C, with minimal polar ice and no true deserts.

The biosphere is extraordinarily productive due to elevated atmospheric oxygen (21–22%), rich soils from ancient volcanic and alluvial deposits, and a long period of geological stability. Photosynthesis is highly efficient, resulting in planet-wide greenery visible from orbit as emerald continents veined with blue river networks and lakes.

Major biomes include:
* '''Grassy plains''' — vast savanna-like steppes supporting herds of large grazing megafauna
* '''Temperate forests''' — mixed deciduous and evergreen woodlands with multilayered canopies
* '''Riparian and lacustrine zones''' — wetlands, marshes, and lake shores rich in aquatic and semi-aquatic life
* '''Highland conifer stands''' — cooler, montane forests at higher elevations

== Life and ecology ==

Arbor's ecosystems support complex food webs with megafauna on the plains (including six-legged herbivores the size of Terran elephants) and arboreal predators in the forests. Bioluminescent fungi and symbiotic plant-animal relationships are common in the understory.

== History ==

Arbor formed approximately 4.8 billion years ago. Geological evidence suggests a relatively calm tectonic history with fewer mass extinctions than Earth, contributing to its superhabitable status.

== Inhabitants ==

== See also ==

== References ==

[[Category:Planets]]

Arbor - Revision history