🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.68 AU - 0.92 AU

Year: 250 Days

Day: 34.3 Hours

Environment

Temp: 140 °C

Axial Tilt: 24.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 41,748,490 km

• M1: 410,796 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.88 AU - 0.94 AU

Year: 304 Days

Day: 15.5 Hours

Environment

Temp: 181 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.76 AU - 2.15 AU

Year: 953 Days

Day: 37.8 Hours

Environment

Temp: -57 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,748,490 km

• M1: 926,160 km (0.051 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.24 AU - 3.06 AU

Year: 1509 Days

Day: 19.2 Hours

Environment

Temp: -77 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,748,490 km

• M1: 39,943 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.6

Radius: 12.6

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.84 AU - 6.86 AU

Year: 4950 Days

Day: 14.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,748,490 km

• M1: 156,779 km (0.092 R)
• M2: 1,177,335 km (0.104 R)
• M3: 1,624,932 km (0.111 R)
• M4: 2,160,193 km (0.091 R)
• M5: 3,347,402 km (0.087 R)
• M6: 4,054,102 km (0.042 R)
• M7: 4,810,918 km (0.094 R)
• M8: 5,248,492 km (0.089 R)
• M9: 5,712,694 km (0.082 R)
• M10: 6,288,795 km (0.106 R)
• M11: 8,390,795 km (0.113 R)
• M12: 8,991,430 km (0.069 R)
• M13: 9,696,336 km (0.035 R)
• M14: 11,470,716 km (0.098 R)
• M15: 12,122,514 km (0.044 R)
• M16: 14,177,689 km (0.102 R)
• M17: 20,378,072 km (0.062 R)
• M18: 21,594,901 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.4

Radius: 13.3

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.81 AU - 5.93 AU

Year: 4975 Days

Day: 8.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,748,490 km

• M1: 165,455 km (0.032 R)
• M2: 584,928 km (0.086 R)
• M3: 1,127,220 km (0.094 R)
• M4: 2,145,682 km (0.056 R)
• M5: 3,131,981 km (0.072 R)
• M6: 4,353,896 km (0.096 R)
• M7: 5,152,899 km (0.079 R)
• M8: 5,728,850 km (0.118 R)
• M9: 6,166,424 km (0.078 R)
• M10: 8,814,307 km (0.094 R)
• M11: 9,359,591 km (0.118 R)
• M12: 11,131,877 km (0.119 R)
• M13: 14,621,696 km (0.098 R)
• M14: 15,387,188 km (0.092 R)
• M15: 16,121,714 km (0.076 R)
• M16: 18,216,084 km (0.066 R)
• M17: 19,231,704 km (0.077 R)
• M18: 22,077,055 km (0.049 R)
• M19: 24,198,503 km (0.059 R)
• M20: 24,960,554 km (0.06 R)
• M21: 26,613,012 km (0.066 R)
• M22: 27,425,030 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.5

Radius: 8.7

Gravity: 12.61 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.19 AU - 8.39 AU

Year: 6886 Days

Day: 9.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 41,748,490 km

• M1: 108,159 km (0.089 R)
• M2: 456,573 km (0.096 R)
• M3: 1,199,027 km (0.086 R)
• M4: 1,701,825 km (0.07 R)
• M5: 2,559,320 km (0.074 R)
• M6: 3,105,951 km (0.111 R)
• M7: 5,128,065 km (0.111 R)
• M8: 6,031,038 km (0.089 R)
• M9: 7,420,952 km (0.078 R)
• M10: 7,983,141 km (0.104 R)
• M11: 8,747,436 km (0.084 R)
• M12: 9,888,868 km (0.067 R)
• M13: 12,801,090 km (0.107 R)
• M14: 13,086,074 km (0.1 R)
• M15: 13,492,232 km (0.053 R)
• M16: 14,026,745 km (0.047 R)
• M17: 15,011,698 km (0.084 R)
• M18: 15,456,901 km (0.048 R)
• M19: 17,395,689 km (0.118 R)
• M20: 20,174,320 km (0.117 R)
• M21: 23,831,689 km (0.078 R)
• M22: 25,053,903 km (0.045 R)
• M23: 26,225,853 km (0.116 R)
• M24: 29,167,396 km (0.091 R)
• M25: 30,362,833 km (0.071 R)
• M26: 31,075,068 km (0.088 R)
• M27: 33,601,926 km (0.086 R)
• M28: 34,035,909 km (0.081 R)
• M29: 34,363,828 km (0.094 R)
• M30: 36,833,838 km (0.059 R)
• M31: 37,179,559 km (0.08 R)
• M32: 37,877,582 km (0.084 R)
• M33: 38,347,769 km (0.113 R)

Kuiper Belt

Range: 31.4 - 61.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 189 - 12,102 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit