🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425

Radius: 10

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.45 AU - 0.63 AU

Year: 274 Days

Day: 12.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,504,780 km

• M1: 124,316 km (0.067 R)
• M2: 490,083 km (0.094 R)
• M3: 896,091 km (0.063 R)
• M4: 1,621,043 km (0.069 R)
• M5: 1,948,961 km (0.068 R)
• M6: 2,759,333 km (0.11 R)
• M7: 3,096,975 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.3

Radius: 10.2

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.61 AU - 0.71 AU

Year: 370 Days

Day: 5.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 152.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,504,780 km

• M1: 159,172 km (0.109 R)
• M2: 719,117 km (0.084 R)
• M3: 1,282,353 km (0.038 R)
• M4: 1,646,923 km (0.092 R)
• M5: 2,855,524 km (0.095 R)
• M6: 3,725,735 km (0.08 R)
• M7: 4,578,443 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.4

Radius: 12.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.75 AU - 1.93 AU

Year: 1723 Days

Day: 14 Hours

Environment

Temp: -197 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 26,504,780 km

• M1: 159,920 km (0.081 R)
• M2: 560,394 km (0.106 R)
• M3: 1,405,322 km (0.102 R)
• M4: 2,506,961 km (0.112 R)
• M5: 3,145,146 km (0.105 R)
• M6: 4,829,767 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.4

Radius: 11.8

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.93 AU - 4.49 AU

Year: 4933 Days

Day: 13.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,504,780 km

• M1: 146,756 km (0.114 R)
• M2: 558,000 km (0.118 R)
• M3: 976,276 km (0.12 R)
• M4: 2,220,332 km (0.088 R)
• M5: 3,193,316 km (0.069 R)
• M6: 4,388,902 km (0.086 R)
• M7: 5,460,173 km (0.119 R)
• M8: 6,392,766 km (0.117 R)
• M9: 7,489,318 km (0.106 R)
• M10: 7,891,886 km (0.117 R)
• M11: 9,470,293 km (0.046 R)
• M12: 10,089,928 km (0.087 R)
• M13: 10,543,658 km (0.032 R)
• M14: 12,367,256 km (0.106 R)
• M15: 12,975,371 km (0.102 R)
• M16: 14,392,811 km (0.065 R)
• M17: 16,063,221 km (0.108 R)
• M18: 17,371,604 km (0.105 R)
• M19: 19,378,609 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.5

Radius: 12.6

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.92 AU - 5.9 AU

Year: 7510 Days

Day: 7.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 26,504,780 km

• M1: 156,629 km (0.118 R)
• M2: 1,306,588 km (0.082 R)
• M3: 2,882,153 km (0.049 R)
• M4: 3,482,040 km (0.106 R)
• M5: 4,674,335 km (0.053 R)
• M6: 6,234,192 km (0.102 R)
• M7: 7,494,255 km (0.117 R)
• M8: 11,592,638 km (0.073 R)
• M9: 14,117,252 km (0.05 R)
• M10: 21,308,122 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.7

Radius: 9.2

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.23 AU - 6.33 AU

Year: 8375 Days

Day: 7.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 81.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 26,504,780 km

• M1: 114,442 km (0.057 R)
• M2: 415,583 km (0.093 R)
• M3: 875,148 km (0.116 R)
• M4: 1,220,419 km (0.075 R)
• M5: 1,739,225 km (0.06 R)
• M6: 2,146,281 km (0.055 R)
• M7: 2,729,563 km (0.074 R)
• M8: 3,597,380 km (0.113 R)
• M9: 4,367,959 km (0.1 R)
• M10: 5,125,223 km (0.062 R)
• M11: 5,426,962 km (0.089 R)
• M12: 6,335,919 km (0.081 R)
• M13: 8,536,653 km (0.045 R)
• M14: 9,356,748 km (0.108 R)
• M15: 10,228,306 km (0.073 R)
• M16: 12,239,051 km (0.096 R)
• M17: 16,695,122 km (0.055 R)
• M18: 18,959,436 km (0.116 R)
• M19: 20,202,444 km (0.106 R)
• M20: 21,811,818 km (0.063 R)
• M21: 22,286,941 km (0.09 R)
• M22: 23,012,491 km (0.091 R)
• M23: 24,172,323 km (0.112 R)
• M24: 25,457,818 km (0.069 R)
• M25: 26,969,205 km (0.091 R)
• M26: 28,728,177 km (0.101 R)
• M27: 34,036,807 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.2

Radius: 5.2

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.1 AU - 6.1 AU

Year: 9147 Days

Day: 20.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,504,780 km

• M1: 75,846 km (0.094 R)
• M2: 268,977 km (0.105 R)
• M3: 728,990 km (0.107 R)
• M4: 894,894 km (0.09 R)
• M5: 1,168,958 km (0.12 R)
• M6: 4,647,557 km (0.07 R)
• M7: 5,141,828 km (0.085 R)
• M8: 6,258,726 km (0.085 R)
• M9: 6,732,503 km (0.116 R)
• M10: 9,054,411 km (0.049 R)
• M11: 12,353,493 km (0.105 R)
• M12: 13,338,894 km (0.119 R)
• M13: 13,664,868 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.1

Radius: 3.9

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 6.28 AU - 7.16 AU

Year: 12024 Days

Day: 16.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 26,504,780 km

• M1: 48,769 km (0.054 R)
• M2: 180,714 km (0.085 R)
• M3: 366,216 km (0.073 R)
• M4: 741,557 km (0.104 R)
• M5: 1,173,147 km (0.049 R)
• M6: 1,885,232 km (0.114 R)
• M7: 2,623,647 km (0.028 R)
• M8: 2,919,851 km (0.055 R)
• M9: 3,048,057 km (0.12 R)
• M10: 8,148,895 km (0.089 R)
• M11: 8,552,061 km (0.069 R)
• M12: 9,161,972 km (0.086 R)
• M13: 10,682,485 km (0.098 R)
• M14: 13,594,108 km (0.117 R)
• M15: 14,529,244 km (0.105 R)
• M16: 15,673,369 km (0.041 R)
• M17: 18,262,758 km (0.064 R)
• M18: 18,951,956 km (0.116 R)
• M19: 21,397,582 km (0.092 R)
• M20: 22,659,889 km (0.057 R)
• M21: 23,601,906 km (0.036 R)
• M22: 24,119,814 km (0.115 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 13,658 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit