🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.55 AU - 0.65 AU

Year: 199 Days

Day: 28.5 Hours

Environment

Temp: 13 °C

Axial Tilt: 7.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.69 AU - 0.87 AU

Year: 294 Days

Day: 12 Hours

Environment

Temp: -22 °C

Axial Tilt: 23.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.99 AU - 1.01 AU

Year: 427 Days

Day: 28.6 Hours

Environment

Temp: -53 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,083,924 km

• M1: 76,744 km (0.046 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.9 AU - 1.32 AU

Year: 500 Days

Day: 37.3 Hours

Environment

Temp: -60 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.92 AU - 1.48 AU

Year: 562 Days

Day: 38.9 Hours

Environment

Temp: -61 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,083,924 km

• M1: 207,941 km (0.114 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.82 AU - 2.14 AU

Year: 1191 Days

Day: 39.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2 AU - 2.98 AU

Year: 1680 Days

Day: 22.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.8

Radius: 11.4

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 4.19 AU - 6.67 AU

Year: 5409 Days

Day: 12.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 100,083,924 km

• M1: 141,819 km (0.11 R)
• M2: 520,900 km (0.092 R)
• M3: 878,439 km (0.111 R)
• M4: 2,424,533 km (0.11 R)
• M5: 3,212,764 km (0.104 R)
• M6: 5,685,018 km (0.12 R)
• M7: 8,598,736 km (0.061 R)
• M8: 10,376,707 km (0.114 R)
• M9: 12,582,827 km (0.059 R)
• M10: 13,952,694 km (0.074 R)
• M11: 14,323,547 km (0.048 R)
• M12: 16,453,073 km (0.096 R)
• M13: 17,107,115 km (0.113 R)
• M14: 19,632,177 km (0.095 R)
• M15: 25,488,485 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 937.9

Radius: 4.2

Gravity: 53.17 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 14.15 AU - 16.61 AU

Year: 25785 Days

Day: 17.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 100,083,924 km

• M1: 52,509 km (0.115 R)
• M2: 229,483 km (0.119 R)
• M3: 417,528 km (0.109 R)
• M4: 616,343 km (0.094 R)
• M5: 901,477 km (0.068 R)
• M6: 1,074,412 km (0.074 R)
• M7: 1,596,508 km (0.038 R)
• M8: 3,454,514 km (0.059 R)
• M9: 4,719,364 km (0.118 R)
• M10: 5,037,409 km (0.074 R)
• M11: 5,454,937 km (0.075 R)
• M12: 6,550,741 km (0.111 R)
• M13: 9,046,632 km (0.107 R)
• M14: 12,406,750 km (0.038 R)
• M15: 13,478,319 km (0.108 R)
• M16: 15,716,304 km (0.073 R)
• M17: 16,245,282 km (0.091 R)
• M18: 20,388,395 km (0.117 R)
• M19: 22,313,719 km (0.091 R)
• M20: 24,356,927 km (0.095 R)
• M21: 24,827,412 km (0.095 R)
• M22: 25,907,958 km (0.102 R)
• M23: 27,650,474 km (0.105 R)
• M24: 28,550,305 km (0.116 R)
• M25: 30,003,499 km (0.11 R)
• M26: 39,448,061 km (0.082 R)
• M27: 41,082,418 km (0.099 R)
• M28: 45,719,952 km (0.102 R)
• M29: 49,371,785 km (0.091 R)
• M30: 59,341,436 km (0.111 R)
• M31: 59,553,416 km (0.101 R)
• M32: 60,836,068 km (0.086 R)
• M33: 61,918,858 km (0.068 R)
• M34: 62,574,695 km (0.091 R)
• M35: 73,218,733 km (0.03 R)
• M36: 73,707,020 km (0.117 R)
• M37: 75,682,012 km (0.055 R)
• M38: 85,816,968 km (0.111 R)
• M39: 91,631,089 km (0.066 R)
• M40: 97,407,362 km (0.091 R)
• M41: 99,784,173 km (0.106 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 364 - 18,914 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit