🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.9

Radius: 10.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.55 AU - 0.57 AU

Year: 289 Days

Day: 10.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,543,076 km

• M1: 135,835 km (0.066 R)
• M2: 482,752 km (0.085 R)
• M3: 829,071 km (0.051 R)
• M4: 1,517,072 km (0.109 R)
• M5: 1,904,979 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.4

Radius: 9.2

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.65 AU - 0.71 AU

Year: 387 Days

Day: 9.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,543,076 km

• M1: 114,442 km (0.099 R)
• M2: 416,630 km (0.039 R)
• M3: 792,869 km (0.088 R)
• M4: 1,083,238 km (0.094 R)
• M5: 1,475,185 km (0.031 R)
• M6: 1,932,505 km (0.087 R)
• M7: 2,583,705 km (0.098 R)
• M8: 3,074,984 km (0.119 R)
• M9: 3,584,365 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825

Radius: 11

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.25 AU - 1.99 AU

Year: 1423 Days

Day: 5.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,543,076 km

• M1: 137,780 km (0.088 R)
• M2: 687,402 km (0.05 R)
• M3: 1,142,180 km (0.06 R)
• M4: 1,538,764 km (0.078 R)
• M5: 2,426,926 km (0.079 R)
• M6: 2,808,700 km (0.109 R)
• M7: 3,401,556 km (0.071 R)
• M8: 3,917,071 km (0.117 R)
• M9: 4,426,900 km (0.108 R)
• M10: 4,960,217 km (0.029 R)
• M11: 5,714,788 km (0.066 R)
• M12: 6,251,246 km (0.115 R)
• M13: 7,782,231 km (0.072 R)
• M14: 8,800,992 km (0.042 R)
• M15: 10,005,255 km (0.079 R)
• M16: 10,441,632 km (0.066 R)
• M17: 10,855,569 km (0.064 R)
• M18: 12,315,346 km (0.112 R)
• M19: 13,211,886 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.6

Radius: 14.7

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.38 AU - 2 AU

Year: 1516 Days

Day: 10.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,543,076 km

• M1: 183,407 km (0.049 R)
• M2: 743,651 km (0.1 R)
• M3: 1,218,026 km (0.07 R)
• M4: 2,042,609 km (0.066 R)
• M5: 2,525,212 km (0.1 R)
• M6: 2,983,430 km (0.06 R)
• M7: 3,450,176 km (0.065 R)
• M8: 3,948,636 km (0.11 R)
• M9: 4,767,535 km (0.095 R)
• M10: 6,253,939 km (0.089 R)
• M11: 6,745,368 km (0.117 R)
• M12: 7,585,510 km (0.114 R)
• M13: 9,506,795 km (0.095 R)
• M14: 10,944,879 km (0.06 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 329.8

Radius: 3.8

Gravity: 22.84 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 5.84 AU - 9.12 AU

Year: 14121 Days

Day: 22.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,543,076 km

• M1: 54,304 km (0.108 R)
• M2: 233,522 km (0.106 R)
• M3: 460,163 km (0.093 R)
• M4: 716,723 km (0.075 R)
• M5: 867,967 km (0.106 R)
• M6: 1,152,352 km (0.108 R)
• M7: 1,427,463 km (0.099 R)
• M8: 4,409,547 km (0.079 R)
• M9: 6,462,030 km (0.057 R)
• M10: 7,778,640 km (0.11 R)
• M11: 11,088,942 km (0.107 R)
• M12: 11,915,470 km (0.082 R)
• M13: 12,723,000 km (0.115 R)
• M14: 16,883,017 km (0.093 R)
• M15: 17,752,480 km (0.071 R)
• M16: 21,866,122 km (0.095 R)
• M17: 24,052,346 km (0.08 R)
• M18: 27,548,597 km (0.067 R)
• M19: 31,261,317 km (0.098 R)
• M20: 33,236,757 km (0.1 R)
• M21: 39,659,592 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.2

Radius: 5.6

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.74 AU - 10.64 AU

Year: 22453 Days

Day: 15 Hours

Environment

Temp: -230 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,543,076 km

• M1: 70,012 km (0.117 R)
• M2: 479,760 km (0.077 R)
• M3: 1,129,913 km (0.108 R)
• M4: 1,343,987 km (0.11 R)
• M5: 2,675,259 km (0.077 R)
• M6: 3,202,591 km (0.108 R)
• M7: 4,646,959 km (0.091 R)
• M8: 7,381,009 km (0.09 R)
• M9: 7,817,835 km (0.119 R)
• M10: 8,088,009 km (0.053 R)
• M11: 13,755,524 km (0.1 R)
• M12: 19,981,040 km (0.11 R)
• M13: 23,887,938 km (0.111 R)
• M14: 25,524,389 km (0.098 R)
• M15: 28,592,342 km (0.096 R)
• M16: 29,667,203 km (0.08 R)
• M17: 30,324,835 km (0.104 R)
• M18: 32,819,678 km (0.1 R)
• M19: 34,356,497 km (0.047 R)
• M20: 38,601,337 km (0.104 R)
• M21: 41,936,621 km (0.058 R)
• M22: 44,739,338 km (0.115 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 17,663 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit