🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.45 AU - 0.59 AU

Year: 144 Days

Day: 39.8 Hours

Environment

Temp: 199 °C

Axial Tilt: 8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.63 AU - 0.65 AU

Year: 196 Days

Day: 33.3 Hours

Environment

Temp: 146 °C

Axial Tilt: 36.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,198,513 km

• M1: 19,298 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.45 AU - 1.51 AU

Year: 689 Days

Day: 30.4 Hours

Environment

Temp: -61 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.55 AU - 2.39 AU

Year: 1059 Days

Day: 24.7 Hours

Environment

Temp: -86 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.11 AU - 3.45 AU

Year: 1775 Days

Day: 47.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,198,513 km

• M1: 212,130 km (0.057 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.75 AU - 3.21 AU

Year: 1970 Days

Day: 42.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,198,513 km

• M1: 58,642 km (0.104 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.34 AU - 3.5 AU

Year: 2422 Days

Day: 23.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.9

Radius: 8.7

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.08 AU - 5.1 AU

Year: 3167 Days

Day: 8.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,198,513 km

• M1: 108,159 km (0.092 R)
• M2: 468,840 km (0.107 R)
• M3: 783,444 km (0.096 R)
• M4: 1,242,261 km (0.117 R)
• M5: 1,513,332 km (0.053 R)
• M6: 1,983,518 km (0.061 R)
• M7: 2,639,355 km (0.074 R)
• M8: 3,060,473 km (0.114 R)
• M9: 3,835,091 km (0.068 R)
• M10: 4,141,617 km (0.09 R)
• M11: 4,442,309 km (0.046 R)
• M12: 5,185,212 km (0.115 R)
• M13: 5,458,826 km (0.099 R)
• M14: 6,171,959 km (0.051 R)
• M15: 8,444,949 km (0.099 R)
• M16: 8,720,209 km (0.102 R)
• M17: 12,419,765 km (0.102 R)
• M18: 13,277,409 km (0.11 R)
• M19: 14,612,421 km (0.037 R)
• M20: 14,909,821 km (0.09 R)
• M21: 15,516,590 km (0.081 R)
• M22: 17,270,476 km (0.092 R)
• M23: 18,166,567 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.7

Radius: 10.6

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.75 AU - 7.47 AU

Year: 5783 Days

Day: 12.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,198,513 km

• M1: 132,095 km (0.117 R)
• M2: 562,338 km (0.097 R)
• M3: 2,259,825 km (0.093 R)
• M4: 2,668,228 km (0.06 R)
• M5: 3,920,811 km (0.075 R)
• M6: 9,644,425 km (0.095 R)
• M7: 16,815,848 km (0.073 R)
• M8: 19,106,640 km (0.075 R)
• M9: 21,070,262 km (0.073 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.8

Radius: 11

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.93 AU - 10.11 AU

Year: 11247 Days

Day: 10.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,198,513 km

• M1: 136,732 km (0.105 R)
• M2: 1,012,778 km (0.118 R)
• M3: 2,043,657 km (0.065 R)
• M4: 2,752,451 km (0.095 R)
• M5: 3,261,832 km (0.098 R)
• M6: 4,057,393 km (0.119 R)
• M7: 4,501,400 km (0.107 R)
• M8: 6,298,070 km (0.093 R)
• M9: 8,249,126 km (0.117 R)
• M10: 8,625,664 km (0.068 R)
• M11: 11,360,462 km (0.034 R)
• M12: 12,185,644 km (0.059 R)
• M13: 17,842,239 km (0.096 R)
• M14: 19,365,893 km (0.09 R)
• M15: 21,324,428 km (0.039 R)
• M16: 22,306,239 km (0.104 R)
• M17: 27,049,090 km (0.1 R)
• M18: 30,821,799 km (0.069 R)
• M19: 31,502,020 km (0.096 R)
• M20: 33,364,813 km (0.112 R)
• M21: 35,671,014 km (0.115 R)
• M22: 37,053,597 km (0.119 R)
• M23: 39,791,986 km (0.049 R)
• M24: 45,522,034 km (0.117 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 15,477 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit