🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.88 AU - 1.28 AU

Year: 421 Days

Day: 33.1 Hours

Environment

Temp: 11 °C

Axial Tilt: 9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 26,085,289 km

• M1: 84,822 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.42 AU - 2.36 AU

Year: 974 Days

Day: 29 Hours

Environment

Temp: -65 °C

Axial Tilt: 41.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.88 AU - 3.16 AU

Year: 1967 Days

Day: 42.1 Hours

Environment

Temp: -105 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 26,085,289 km

• M1: 28,274 km (0.057 R)
• M2: 88,412 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.2

Radius: 9.1

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 6.69 AU - 7.39 AU

Year: 7000 Days

Day: 10 Hours

Environment

Temp: -156 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 26,085,289 km

• M1: 139,724 km (0.092 R)
• M2: 428,000 km (0.045 R)
• M3: 790,475 km (0.076 R)
• M4: 1,369,120 km (0.108 R)
• M5: 2,061,608 km (0.071 R)
• M6: 5,252,680 km (0.102 R)
• M7: 5,583,292 km (0.092 R)
• M8: 5,900,738 km (0.1 R)
• M9: 6,371,373 km (0.071 R)
• M10: 8,167,595 km (0.06 R)
• M11: 9,182,018 km (0.108 R)
• M12: 12,548,269 km (0.042 R)
• M13: 16,015,649 km (0.119 R)
• M14: 17,768,786 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.8

Radius: 12.6

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 8.49 AU - 11.03 AU

Year: 11426 Days

Day: 6.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 26,085,289 km

• M1: 195,076 km (0.052 R)
• M2: 761,004 km (0.097 R)
• M3: 1,914,254 km (0.082 R)
• M4: 2,907,285 km (0.12 R)
• M5: 4,038,245 km (0.097 R)
• M6: 4,789,376 km (0.091 R)
• M7: 7,151,676 km (0.068 R)
• M8: 7,807,064 km (0.093 R)
• M9: 10,349,031 km (0.029 R)
• M10: 12,072,548 km (0.112 R)
• M11: 12,779,697 km (0.071 R)
• M12: 13,514,372 km (0.098 R)
• M13: 15,442,689 km (0.105 R)
• M14: 16,538,793 km (0.061 R)
• M15: 17,411,397 km (0.057 R)
• M16: 18,741,771 km (0.094 R)
• M17: 19,248,608 km (0.089 R)
• M18: 21,289,871 km (0.089 R)
• M19: 22,161,429 km (0.057 R)
• M20: 25,356,540 km (0.069 R)
• M21: 26,245,750 km (0.101 R)
• M22: 30,110,760 km (0.11 R)
• M23: 35,538,470 km (0.116 R)
• M24: 36,764,874 km (0.096 R)
• M25: 39,184,170 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.9

Radius: 10.1

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 10.02 AU - 10.3 AU

Year: 12136 Days

Day: 14.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 26,085,289 km

• M1: 132,993 km (0.043 R)
• M2: 453,730 km (0.052 R)
• M3: 1,043,744 km (0.091 R)
• M4: 1,658,592 km (0.104 R)
• M5: 2,933,764 km (0.064 R)
• M6: 5,129,561 km (0.113 R)
• M7: 6,671,766 km (0.088 R)
• M8: 8,459,311 km (0.113 R)
• M9: 11,207,274 km (0.106 R)
• M10: 11,574,986 km (0.119 R)
• M11: 14,439,785 km (0.114 R)
• M12: 18,463,818 km (0.101 R)
• M13: 19,274,788 km (0.096 R)
• M14: 24,736,457 km (0.058 R)
• M15: 25,903,918 km (0.087 R)
• M16: 26,640,389 km (0.112 R)
• M17: 29,328,363 km (0.115 R)
• M18: 30,840,349 km (0.053 R)
• M19: 31,667,625 km (0.095 R)
• M20: 33,691,684 km (0.099 R)
• M21: 35,800,566 km (0.042 R)
• M22: 38,946,609 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.7

Radius: 8

Gravity: 12.46 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 12.7 AU - 20.86 AU

Year: 25758 Days

Day: 20.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 26,085,289 km

• M1: 99,483 km (0.085 R)
• M2: 359,184 km (0.114 R)
• M3: 633,397 km (0.092 R)
• M4: 988,692 km (0.08 R)
• M5: 1,312,422 km (0.119 R)
• M6: 2,177,547 km (0.099 R)
• M7: 2,655,362 km (0.083 R)
• M8: 3,230,566 km (0.106 R)
• M9: 3,986,634 km (0.057 R)
• M10: 4,552,862 km (0.086 R)
• M11: 5,171,748 km (0.062 R)
• M12: 5,977,931 km (0.053 R)
• M13: 8,611,003 km (0.113 R)
• M14: 8,899,129 km (0.103 R)
• M15: 9,927,464 km (0.067 R)
• M16: 11,932,076 km (0.088 R)
• M17: 13,180,620 km (0.102 R)
• M18: 14,272,235 km (0.116 R)
• M19: 19,939,003 km (0.1 R)
• M20: 21,375,142 km (0.101 R)
• M21: 22,118,494 km (0.095 R)
• M22: 24,222,887 km (0.102 R)
• M23: 26,215,980 km (0.096 R)
• M24: 34,700,572 km (0.111 R)
• M25: 39,241,167 km (0.118 R)
• M26: 48,747,962 km (0.103 R)
• M27: 50,034,504 km (0.101 R)
• M28: 52,292,534 km (0.042 R)
• M29: 55,209,543 km (0.105 R)
• M30: 60,099,449 km (0.095 R)
• M31: 71,433,282 km (0.047 R)
• M32: 87,298,137 km (0.06 R)
• M33: 92,506,835 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 12.1

Radius: 6.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 15.86 AU - 21.46 AU

Year: 30206 Days

Day: 22.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,085,289 km

• M1: 82,129 km (0.084 R)
• M2: 299,645 km (0.09 R)
• M3: 1,809,536 km (0.084 R)
• M4: 3,085,456 km (0.043 R)
• M5: 3,780,637 km (0.113 R)
• M6: 4,747,189 km (0.101 R)
• M7: 5,783,454 km (0.088 R)
• M8: 6,160,141 km (0.107 R)
• M9: 6,962,734 km (0.119 R)
• M10: 9,039,451 km (0.102 R)
• M11: 21,473,727 km (0.106 R)
• M12: 24,257,594 km (0.039 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 16,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit