🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.2

Radius: 8.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.74 AU - 0.86 AU

Year: 477 Days

Day: 9.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,446,326 km

• M1: 102,026 km (0.104 R)
• M2: 464,801 km (0.086 R)
• M3: 726,298 km (0.04 R)
• M4: 1,157,140 km (0.076 R)
• M5: 1,555,369 km (0.116 R)
• M6: 2,400,298 km (0.09 R)
• M7: 2,780,725 km (0.107 R)
• M8: 3,522,132 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.6

Radius: 13.1

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.8 AU - 1.2 AU

Year: 667 Days

Day: 7.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,446,326 km

• M1: 162,912 km (0.102 R)
• M2: 639,531 km (0.076 R)
• M3: 1,127,669 km (0.1 R)
• M4: 1,621,791 km (0.059 R)
• M5: 2,241,425 km (0.092 R)
• M6: 3,398,714 km (0.096 R)
• M7: 3,858,428 km (0.115 R)
• M8: 5,328,527 km (0.12 R)
• M9: 6,170,912 km (0.113 R)
• M10: 7,668,536 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.9

Radius: 9.7

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.95 AU - 1.31 AU

Year: 801 Days

Day: 11.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,446,326 km

• M1: 120,875 km (0.085 R)
• M2: 477,816 km (0.105 R)
• M3: 1,228,498 km (0.084 R)
• M4: 1,619,846 km (0.091 R)
• M5: 2,557,974 km (0.069 R)
• M6: 3,089,495 km (0.095 R)
• M7: 6,043,156 km (0.087 R)
• M8: 6,451,408 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.6

Radius: 14.3

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.86 AU - 1.42 AU

Year: 812 Days

Day: 14.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,446,326 km

• M1: 179,069 km (0.109 R)
• M2: 695,780 km (0.108 R)
• M3: 1,384,079 km (0.098 R)
• M4: 2,295,280 km (0.056 R)
• M5: 2,904,443 km (0.115 R)
• M6: 3,824,769 km (0.053 R)
• M7: 4,535,508 km (0.105 R)
• M8: 5,147,962 km (0.044 R)
• M9: 6,648,279 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.2

Radius: 11.1

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.34 AU - 1.72 AU

Year: 1262 Days

Day: 12.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,446,326 km

• M1: 138,079 km (0.103 R)
• M2: 669,151 km (0.107 R)
• M3: 1,230,143 km (0.053 R)
• M4: 1,671,457 km (0.082 R)
• M5: 2,227,961 km (0.114 R)
• M6: 2,646,237 km (0.101 R)
• M7: 3,181,199 km (0.069 R)
• M8: 3,714,665 km (0.049 R)
• M9: 5,528,240 km (0.088 R)
• M10: 6,790,995 km (0.114 R)
• M11: 7,214,058 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244

Radius: 11

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.2 AU - 1.88 AU

Year: 1274 Days

Day: 6.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,446,326 km

• M1: 136,732 km (0.06 R)
• M2: 678,726 km (0.055 R)
• M3: 1,027,289 km (0.038 R)
• M4: 1,530,386 km (0.095 R)
• M5: 1,984,266 km (0.09 R)
• M6: 2,335,821 km (0.108 R)
• M7: 2,979,541 km (0.103 R)
• M8: 4,032,859 km (0.112 R)
• M9: 4,704,105 km (0.086 R)
• M10: 5,119,987 km (0.091 R)
• M11: 5,809,633 km (0.06 R)
• M12: 6,602,502 km (0.086 R)
• M13: 7,058,476 km (0.092 R)
• M14: 8,082,474 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.8

Radius: 11.5

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.22 AU - 4.14 AU

Year: 4708 Days

Day: 12.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,446,326 km

• M1: 144,362 km (0.104 R)
• M2: 839,244 km (0.092 R)
• M3: 1,445,714 km (0.039 R)
• M4: 2,106,637 km (0.097 R)
• M5: 2,858,815 km (0.09 R)
• M6: 5,821,003 km (0.067 R)
• M7: 6,800,570 km (0.072 R)
• M8: 7,954,268 km (0.083 R)
• M9: 9,233,929 km (0.095 R)
• M10: 12,886,959 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.8

Radius: 11

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.2 AU - 5.6 AU

Year: 8368 Days

Day: 6.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,446,326 km

• M1: 137,032 km (0.081 R)
• M2: 479,611 km (0.118 R)
• M3: 1,228,797 km (0.054 R)
• M4: 2,971,163 km (0.11 R)
• M5: 4,001,893 km (0.111 R)
• M6: 5,283,946 km (0.084 R)
• M7: 6,563,158 km (0.093 R)
• M8: 7,535,544 km (0.098 R)
• M9: 10,146,924 km (0.071 R)
• M10: 12,901,620 km (0.119 R)
• M11: 21,219,860 km (0.093 R)
• M12: 26,557,212 km (0.088 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 521 - 14,210 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit