🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.56 AU - 0.58 AU

Year: 196 Days

Day: 12.4 Hours

Environment

Temp: -6 °C

Axial Tilt: 29.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.58 AU - 0.7 AU

Year: 234 Days

Day: 13.1 Hours

Environment

Temp: -29 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,013,889 km

• M1: 427,700 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.2

Radius: 8.5

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.81 AU - 2.75 AU

Year: 1572 Days

Day: 6 Hours

Environment

Temp: -147 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,013,889 km

• M1: 112,498 km (0.079 R)
• M2: 388,805 km (0.099 R)
• M3: 693,685 km (0.059 R)
• M4: 1,433,896 km (0.095 R)
• M5: 2,154,359 km (0.102 R)
• M6: 2,995,997 km (0.05 R)
• M7: 3,512,708 km (0.091 R)
• M8: 4,260,697 km (0.077 R)
• M9: 5,111,011 km (0.086 R)
• M10: 6,506,610 km (0.078 R)
• M11: 6,831,237 km (0.114 R)
• M12: 7,968,031 km (0.063 R)
• M13: 8,314,949 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.3

Radius: 13.8

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.86 AU - 2.74 AU

Year: 1593 Days

Day: 14.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,013,889 km

• M1: 174,581 km (0.077 R)
• M2: 690,843 km (0.057 R)
• M3: 1,234,781 km (0.106 R)
• M4: 1,672,953 km (0.104 R)
• M5: 2,274,785 km (0.104 R)
• M6: 3,753,710 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.7

Radius: 9.6

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.72 AU - 4.4 AU

Year: 3735 Days

Day: 14.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,013,889 km

• M1: 119,379 km (0.092 R)
• M2: 546,631 km (0.054 R)
• M3: 1,137,991 km (0.029 R)
• M4: 1,447,509 km (0.1 R)
• M5: 1,814,173 km (0.108 R)
• M6: 2,129,526 km (0.05 R)
• M7: 2,607,790 km (0.061 R)
• M8: 3,230,267 km (0.085 R)
• M9: 3,821,926 km (0.103 R)
• M10: 4,368,856 km (0.071 R)
• M11: 5,378,043 km (0.088 R)
• M12: 6,036,872 km (0.113 R)
• M13: 6,475,344 km (0.071 R)
• M14: 6,872,526 km (0.072 R)
• M15: 7,318,328 km (0.089 R)
• M16: 7,919,861 km (0.076 R)
• M17: 9,607,026 km (0.105 R)
• M18: 10,205,716 km (0.1 R)
• M19: 11,389,484 km (0.045 R)
• M20: 11,744,031 km (0.096 R)
• M21: 12,851,803 km (0.039 R)
• M22: 13,529,482 km (0.098 R)
• M23: 14,851,029 km (0.074 R)
• M24: 20,348,901 km (0.107 R)
• M25: 23,051,835 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.1

Radius: 12.8

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.59 AU - 4.77 AU

Year: 4622 Days

Day: 10.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,013,889 km

• M1: 160,668 km (0.096 R)
• M2: 977,024 km (0.091 R)
• M3: 1,792,631 km (0.116 R)
• M4: 6,928,775 km (0.09 R)
• M5: 7,353,932 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.7

Radius: 13.9

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 5.35 AU - 7.61 AU

Year: 7531 Days

Day: 5.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 113.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,013,889 km

• M1: 172,935 km (0.03 R)
• M2: 1,281,605 km (0.081 R)
• M3: 1,810,284 km (0.036 R)
• M4: 2,458,791 km (0.101 R)
• M5: 3,808,612 km (0.09 R)
• M6: 5,629,667 km (0.045 R)
• M7: 8,063,176 km (0.118 R)
• M8: 8,791,119 km (0.093 R)
• M9: 11,764,975 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.5

Radius: 12.8

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.92 AU - 9.06 AU

Year: 11294 Days

Day: 6.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,013,889 km

• M1: 159,172 km (0.073 R)
• M2: 777,460 km (0.041 R)
• M3: 1,475,185 km (0.057 R)
• M4: 2,024,358 km (0.062 R)
• M5: 2,484,073 km (0.085 R)
• M6: 3,964,194 km (0.039 R)
• M7: 5,473,487 km (0.093 R)
• M8: 5,895,502 km (0.111 R)
• M9: 6,647,830 km (0.118 R)
• M10: 10,259,871 km (0.069 R)
• M11: 10,686,673 km (0.086 R)
• M12: 11,348,943 km (0.085 R)
• M13: 12,695,025 km (0.087 R)
• M14: 13,692,544 km (0.087 R)
• M15: 14,210,451 km (0.059 R)
• M16: 16,632,142 km (0.072 R)
• M17: 21,060,388 km (0.06 R)
• M18: 21,664,165 km (0.118 R)
• M19: 22,906,276 km (0.054 R)
• M20: 24,383,256 km (0.071 R)
• M21: 25,145,158 km (0.073 R)
• M22: 35,325,443 km (0.106 R)
• M23: 41,991,225 km (0.032 R)
• M24: 45,189,926 km (0.048 R)
• M25: 48,100,503 km (0.065 R)
• M26: 49,298,931 km (0.074 R)
• M27: 50,979,214 km (0.09 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 15,112 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit