🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.2

Radius: 9.5

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.77 AU - 0.85 AU

Year: 494 Days

Day: 12.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,204,153 km

• M1: 118,182 km (0.082 R)
• M2: 476,320 km (0.082 R)
• M3: 806,033 km (0.095 R)
• M4: 1,596,060 km (0.104 R)
• M5: 2,662,094 km (0.107 R)
• M6: 3,330,198 km (0.099 R)
• M7: 4,352,700 km (0.077 R)
• M8: 5,059,550 km (0.078 R)
• M9: 5,722,268 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.3

Radius: 12.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.98 AU - 1.02 AU

Year: 678 Days

Day: 8.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,204,153 km

• M1: 150,495 km (0.089 R)
• M2: 535,560 km (0.075 R)
• M3: 982,110 km (0.089 R)
• M4: 1,523,206 km (0.114 R)
• M5: 1,916,050 km (0.098 R)
• M6: 2,446,524 km (0.1 R)
• M7: 3,584,365 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.5

Radius: 10.3

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.99 AU - 1.07 AU

Year: 709 Days

Day: 11.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 60.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,204,153 km

• M1: 128,205 km (0.099 R)
• M2: 459,415 km (0.057 R)
• M3: 796,459 km (0.117 R)
• M4: 1,187,209 km (0.109 R)
• M5: 1,513,033 km (0.071 R)
• M6: 2,437,697 km (0.051 R)
• M7: 2,924,489 km (0.085 R)
• M8: 3,257,643 km (0.105 R)
• M9: 3,717,357 km (0.084 R)
• M10: 4,413,736 km (0.093 R)
• M11: 5,268,538 km (0.081 R)
• M12: 5,609,023 km (0.093 R)
• M13: 6,065,595 km (0.102 R)
• M14: 6,589,786 km (0.11 R)
• M15: 7,874,084 km (0.093 R)
• M16: 8,549,818 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.9

Radius: 13.3

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.29 AU - 1.77 AU

Year: 1284 Days

Day: 9.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,204,153 km

• M1: 166,951 km (0.102 R)
• M2: 594,652 km (0.107 R)
• M3: 1,076,057 km (0.084 R)
• M4: 1,527,095 km (0.063 R)
• M5: 2,257,881 km (0.029 R)
• M6: 2,818,873 km (0.107 R)
• M7: 4,160,167 km (0.036 R)
• M8: 5,400,034 km (0.069 R)
• M9: 6,013,386 km (0.069 R)
• M10: 7,380,112 km (0.062 R)
• M11: 7,837,881 km (0.065 R)
• M12: 8,890,901 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.2

Radius: 11.1

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.18 AU - 2.56 AU

Year: 2475 Days

Day: 11.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,204,153 km

• M1: 171,888 km (0.034 R)
• M2: 664,215 km (0.04 R)
• M3: 2,365,741 km (0.069 R)
• M4: 3,027,861 km (0.118 R)
• M5: 3,431,177 km (0.1 R)
• M6: 3,931,731 km (0.083 R)
• M7: 4,514,415 km (0.096 R)
• M8: 6,814,183 km (0.085 R)
• M9: 7,632,334 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 676.4

Radius: 4.1

Gravity: 40.24 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.52 AU - 8.46 AU

Year: 13903 Days

Day: 16.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 29,204,153 km

• M1: 51,013 km (0.114 R)
• M2: 247,435 km (0.117 R)
• M3: 547,977 km (0.113 R)
• M4: 709,842 km (0.096 R)
• M5: 946,207 km (0.062 R)
• M6: 1,220,270 km (0.095 R)
• M7: 1,455,438 km (0.078 R)
• M8: 1,837,959 km (0.1 R)
• M9: 2,034,381 km (0.073 R)
• M10: 2,664,188 km (0.115 R)
• M11: 3,441,200 km (0.062 R)
• M12: 3,602,167 km (0.049 R)
• M13: 4,085,817 km (0.074 R)
• M14: 4,421,066 km (0.12 R)
• M15: 5,537,066 km (0.113 R)
• M16: 7,885,154 km (0.072 R)
• M17: 9,046,482 km (0.117 R)
• M18: 9,199,222 km (0.108 R)
• M19: 10,483,968 km (0.077 R)
• M20: 10,652,416 km (0.103 R)
• M21: 11,463,236 km (0.08 R)
• M22: 15,118,810 km (0.081 R)
• M23: 17,130,452 km (0.049 R)
• M24: 17,998,718 km (0.065 R)
• M25: 18,813,129 km (0.059 R)
• M26: 25,821,789 km (0.093 R)
• M27: 28,898,569 km (0.095 R)
• M28: 31,389,224 km (0.101 R)
• M29: 33,530,717 km (0.084 R)
• M30: 38,500,358 km (0.101 R)
• M31: 40,122,897 km (0.084 R)
• M32: 40,260,078 km (0.084 R)
• M33: 43,648,470 km (0.058 R)
• M34: 55,964,863 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 36.9

Radius: 4.5

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.79 AU - 10.61 AU

Year: 20490 Days

Day: 20.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,204,153 km

• M1: 67,768 km (0.074 R)
• M2: 220,358 km (0.11 R)
• M3: 2,522,071 km (0.114 R)
• M4: 3,360,716 km (0.036 R)
• M5: 3,699,555 km (0.104 R)
• M6: 7,519,238 km (0.106 R)
• M7: 9,548,383 km (0.099 R)
• M8: 11,867,449 km (0.081 R)
• M9: 16,127,398 km (0.059 R)
• M10: 16,722,499 km (0.095 R)
• M11: 20,743,390 km (0.095 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: 238 - 17,780 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit