🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.9

Radius: 9.7

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.51 AU - 0.71 AU

Year: 323 Days

Day: 13.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,671,172 km

• M1: 120,576 km (0.106 R)
• M2: 493,224 km (0.102 R)
• M3: 930,499 km (0.115 R)
• M4: 1,431,652 km (0.115 R)
• M5: 1,862,793 km (0.115 R)
• M6: 2,218,985 km (0.086 R)
• M7: 2,928,528 km (0.062 R)
• M8: 4,345,519 km (0.092 R)
• M9: 4,696,027 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.9

Radius: 14.6

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.59 AU - 0.91 AU

Year: 441 Days

Day: 8.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 62,671,172 km

• M1: 190,438 km (0.114 R)
• M2: 670,647 km (0.071 R)
• M3: 1,163,871 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.3

Radius: 14.8

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.84 AU - 1.24 AU

Year: 719 Days

Day: 12.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,671,172 km

• M1: 184,005 km (0.103 R)
• M2: 691,741 km (0.048 R)
• M3: 1,221,018 km (0.067 R)
• M4: 2,020,618 km (0.055 R)
• M5: 2,531,046 km (0.096 R)
• M6: 2,999,138 km (0.052 R)
• M7: 3,630,441 km (0.119 R)
• M8: 4,864,624 km (0.106 R)
• M9: 5,741,267 km (0.044 R)
• M10: 6,304,653 km (0.077 R)
• M11: 6,843,355 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.2

Radius: 11.2

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.16 AU - 1.32 AU

Year: 937 Days

Day: 12.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,671,172 km

• M1: 140,921 km (0.077 R)
• M2: 633,397 km (0.112 R)
• M3: 998,715 km (0.083 R)
• M4: 1,405,472 km (0.101 R)
• M5: 1,923,679 km (0.108 R)
• M6: 2,658,205 km (0.104 R)
• M7: 3,084,558 km (0.116 R)
• M8: 3,486,378 km (0.099 R)
• M9: 4,014,608 km (0.061 R)
• M10: 4,889,457 km (0.077 R)
• M11: 5,251,035 km (0.096 R)
• M12: 5,747,849 km (0.075 R)
• M13: 7,082,861 km (0.119 R)
• M14: 7,570,849 km (0.112 R)
• M15: 8,903,168 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.7

Radius: 13

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.54 AU - 2.24 AU

Year: 1762 Days

Day: 8.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,671,172 km

• M1: 161,715 km (0.084 R)
• M2: 618,288 km (0.105 R)
• M3: 1,040,004 km (0.077 R)
• M4: 1,530,685 km (0.078 R)
• M5: 2,611,979 km (0.109 R)
• M6: 3,256,147 km (0.117 R)
• M7: 3,676,816 km (0.114 R)
• M8: 4,200,110 km (0.058 R)
• M9: 4,647,258 km (0.116 R)
• M10: 5,260,609 km (0.062 R)
• M11: 6,162,235 km (0.12 R)
• M12: 6,582,157 km (0.081 R)
• M13: 7,958,906 km (0.089 R)
• M14: 8,674,582 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.6

Radius: 13.5

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.25 AU - 2.61 AU

Year: 2569 Days

Day: 11.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,671,172 km

• M1: 167,998 km (0.059 R)
• M2: 630,106 km (0.09 R)
• M3: 1,282,951 km (0.083 R)
• M4: 1,781,112 km (0.042 R)
• M5: 2,226,316 km (0.108 R)
• M6: 2,659,401 km (0.062 R)
• M7: 3,828,060 km (0.076 R)
• M8: 4,333,701 km (0.078 R)
• M9: 5,130,309 km (0.082 R)
• M10: 5,576,111 km (0.091 R)
• M11: 7,626,499 km (0.112 R)
• M12: 8,146,651 km (0.098 R)
• M13: 11,346,101 km (0.078 R)
• M14: 12,605,117 km (0.092 R)
• M15: 15,447,775 km (0.078 R)
• M16: 16,282,831 km (0.118 R)
• M17: 16,839,036 km (0.095 R)
• M18: 17,460,315 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.5

Radius: 3.3

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 4.64 AU - 7.48 AU

Year: 10118 Days

Day: 24.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,671,172 km

• M1: 41,139 km (0.096 R)
• M2: 171,888 km (0.071 R)
• M3: 747,391 km (0.078 R)
• M4: 1,185,264 km (0.109 R)
• M5: 1,645,876 km (0.1 R)
• M6: 2,146,729 km (0.088 R)
• M7: 2,432,312 km (0.081 R)
• M8: 2,991,957 km (0.06 R)
• M9: 3,238,196 km (0.117 R)
• M10: 4,769,779 km (0.11 R)
• M11: 5,824,443 km (0.089 R)
• M12: 9,414,792 km (0.11 R)
• M13: 11,389,335 km (0.114 R)
• M14: 12,162,756 km (0.09 R)
• M15: 12,562,332 km (0.107 R)
• M16: 13,294,314 km (0.087 R)
• M17: 13,861,589 km (0.088 R)
• M18: 14,395,504 km (0.088 R)
• M19: 14,792,387 km (0.107 R)
• M20: 16,399,367 km (0.086 R)
• M21: 20,949,536 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 715

Radius: 6.7

Gravity: 15.93 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6.35 AU - 9.15 AU

Year: 14633 Days

Day: 16.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 62,671,172 km

• M1: 83,326 km (0.044 R)
• M2: 390,750 km (0.079 R)
• M3: 705,354 km (0.111 R)
• M4: 970,292 km (0.082 R)
• M5: 1,274,574 km (0.084 R)
• M6: 2,134,163 km (0.056 R)
• M7: 4,887,961 km (0.115 R)
• M8: 5,824,743 km (0.07 R)
• M9: 6,135,757 km (0.102 R)
• M10: 6,581,409 km (0.108 R)
• M11: 7,906,846 km (0.048 R)
• M12: 8,483,695 km (0.103 R)
• M13: 9,453,987 km (0.109 R)
• M14: 9,883,931 km (0.047 R)
• M15: 11,015,938 km (0.097 R)
• M16: 11,492,108 km (0.116 R)
• M17: 13,333,658 km (0.079 R)
• M18: 13,943,120 km (0.108 R)
• M19: 17,995,427 km (0.102 R)
• M20: 20,465,737 km (0.068 R)
• M21: 21,550,920 km (0.081 R)
• M22: 24,833,546 km (0.081 R)
• M23: 28,213,710 km (0.116 R)
• M24: 29,443,105 km (0.078 R)
• M25: 30,591,418 km (0.032 R)
• M26: 31,294,528 km (0.08 R)
• M27: 33,468,484 km (0.119 R)
• M28: 34,845,383 km (0.097 R)
• M29: 36,259,681 km (0.106 R)
• M30: 36,520,879 km (0.094 R)
• M31: 37,845,718 km (0.091 R)
• M32: 41,868,704 km (0.12 R)
• M33: 43,172,898 km (0.047 R)
• M34: 47,559,407 km (0.082 R)
• M35: 57,559,576 km (0.106 R)
• M36: 59,533,221 km (0.062 R)
• M37: 60,261,912 km (0.069 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 241 - 17,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit