🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.47 AU - 0.69 AU

Year: 290 Days

Day: 16.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.1

Radius: 14

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.61 AU - 0.89 AU

Year: 426 Days

Day: 12.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,250,934 km

• M1: 174,132 km (0.1 R)
• M2: 800,648 km (0.061 R)
• M3: 1,291,478 km (0.119 R)
• M4: 1,742,815 km (0.042 R)
• M5: 2,207,616 km (0.06 R)
• M6: 2,726,571 km (0.093 R)
• M7: 3,534,848 km (0.095 R)
• M8: 3,976,910 km (0.12 R)
• M9: 5,109,964 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876

Radius: 13.5

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.8 AU - 0.82 AU

Year: 478 Days

Day: 14 Hours

Environment

Temp: -147 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,250,934 km

• M1: 168,298 km (0.035 R)
• M2: 785,389 km (0.106 R)
• M3: 1,292,675 km (0.095 R)
• M4: 1,738,477 km (0.071 R)
• M5: 2,215,245 km (0.082 R)
• M6: 2,779,977 km (0.095 R)
• M7: 3,353,386 km (0.095 R)
• M8: 3,936,369 km (0.092 R)
• M9: 4,480,755 km (0.084 R)
• M10: 5,307,284 km (0.092 R)
• M11: 6,794,885 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.7

Radius: 10.2

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.86 AU - 1.36 AU

Year: 767 Days

Day: 11.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,250,934 km

• M1: 130,001 km (0.077 R)
• M2: 734,675 km (0.087 R)
• M3: 1,083,986 km (0.101 R)
• M4: 1,411,306 km (0.081 R)
• M5: 1,925,773 km (0.118 R)
• M6: 2,292,139 km (0.113 R)
• M7: 2,810,645 km (0.102 R)
• M8: 3,167,585 km (0.116 R)
• M9: 3,760,142 km (0.094 R)
• M10: 4,483,897 km (0.104 R)
• M11: 5,863,788 km (0.106 R)
• M12: 6,300,314 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.7

Radius: 10.9

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.44 AU - 2.38 AU

Year: 1732 Days

Day: 8.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,250,934 km

• M1: 135,685 km (0.069 R)
• M2: 586,723 km (0.107 R)
• M3: 1,018,612 km (0.108 R)
• M4: 1,461,571 km (0.118 R)
• M5: 2,325,499 km (0.06 R)
• M6: 3,076,779 km (0.083 R)
• M7: 3,799,337 km (0.058 R)
• M8: 5,441,174 km (0.103 R)
• M9: 5,843,592 km (0.119 R)
• M10: 6,978,741 km (0.062 R)
• M11: 8,194,074 km (0.108 R)
• M12: 8,724,099 km (0.052 R)
• M13: 9,477,624 km (0.109 R)
• M14: 11,303,166 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.7

Radius: 9.7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.29 AU - 2.93 AU

Year: 2766 Days

Day: 11.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,250,934 km

• M1: 120,725 km (0.099 R)
• M2: 528,230 km (0.098 R)
• M3: 918,531 km (0.052 R)
• M4: 1,344,286 km (0.031 R)
• M5: 1,832,275 km (0.114 R)
• M6: 2,601,806 km (0.111 R)
• M7: 3,149,035 km (0.069 R)
• M8: 3,716,609 km (0.094 R)
• M9: 4,054,102 km (0.094 R)
• M10: 6,637,957 km (0.085 R)
• M11: 7,165,439 km (0.087 R)
• M12: 8,462,602 km (0.097 R)
• M13: 8,883,870 km (0.119 R)
• M14: 13,073,059 km (0.115 R)
• M15: 13,548,930 km (0.117 R)
• M16: 15,810,849 km (0.09 R)
• M17: 16,954,824 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.4

Radius: 10.7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.86 AU - 3.82 AU

Year: 4004 Days

Day: 10.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,250,934 km

• M1: 133,740 km (0.112 R)
• M2: 547,528 km (0.065 R)
• M3: 1,161,627 km (0.074 R)
• M4: 1,531,882 km (0.092 R)
• M5: 2,114,566 km (0.099 R)
• M6: 2,581,461 km (0.115 R)
• M7: 3,028,160 km (0.052 R)
• M8: 5,753,385 km (0.045 R)
• M9: 7,068,200 km (0.116 R)
• M10: 7,482,885 km (0.117 R)
• M11: 8,609,208 km (0.101 R)
• M12: 9,119,785 km (0.116 R)
• M13: 9,884,231 km (0.032 R)
• M14: 10,857,365 km (0.057 R)
• M15: 12,852,252 km (0.064 R)
• M16: 13,862,337 km (0.089 R)
• M17: 14,210,451 km (0.085 R)
• M18: 14,718,037 km (0.107 R)
• M19: 17,096,493 km (0.106 R)
• M20: 17,497,117 km (0.055 R)
• M21: 19,285,858 km (0.117 R)
• M22: 20,544,126 km (0.115 R)
• M23: 23,154,010 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.8

Radius: 9.2

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.56 AU - 3.78 AU

Year: 4612 Days

Day: 9.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 29,250,934 km

• M1: 117,883 km (0.114 R)
• M2: 455,226 km (0.119 R)
• M3: 767,886 km (0.118 R)
• M4: 1,578,258 km (0.095 R)
• M5: 2,562,761 km (0.096 R)
• M6: 3,101,014 km (0.093 R)
• M7: 3,479,646 km (0.082 R)
• M8: 3,778,393 km (0.111 R)
• M9: 4,935,683 km (0.111 R)
• M10: 7,824,268 km (0.075 R)
• M11: 8,529,173 km (0.119 R)
• M12: 10,586,892 km (0.077 R)
• M13: 11,126,042 km (0.034 R)
• M14: 11,495,699 km (0.119 R)
• M15: 14,920,742 km (0.056 R)
• M16: 15,484,277 km (0.105 R)
• M17: 16,774,260 km (0.102 R)
• M18: 17,322,087 km (0.112 R)
• M19: 17,756,519 km (0.082 R)
• M20: 18,389,468 km (0.12 R)
• M21: 19,037,526 km (0.033 R)
• M22: 19,566,803 km (0.027 R)
• M23: 21,998,516 km (0.083 R)
• M24: 23,702,137 km (0.115 R)
• M25: 26,053,965 km (0.111 R)
• M26: 27,621,452 km (0.081 R)
• M27: 28,214,607 km (0.105 R)
• M28: 28,729,673 km (0.114 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 16,193 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit