🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.2

Radius: 8.1

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.48 AU - 0.72 AU

Year: 315 Days

Day: 10.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,452,132 km

• M1: 100,679 km (0.11 R)
• M2: 461,958 km (0.055 R)
• M3: 727,046 km (0.106 R)
• M4: 981,063 km (0.107 R)
• M5: 1,301,352 km (0.059 R)
• M6: 1,628,223 km (0.089 R)
• M7: 1,924,577 km (0.084 R)
• M8: 2,724,177 km (0.052 R)
• M9: 3,086,503 km (0.066 R)
• M10: 3,345,756 km (0.046 R)
• M11: 3,597,978 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.1

Radius: 12.5

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.13 AU - 1.49 AU

Year: 1017 Days

Day: 14.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,452,132 km

• M1: 156,479 km (0.063 R)
• M2: 547,977 km (0.111 R)
• M3: 1,068,877 km (0.111 R)
• M4: 1,563,148 km (0.08 R)
• M5: 2,309,342 km (0.081 R)
• M6: 3,578,231 km (0.066 R)
• M7: 4,296,600 km (0.065 R)
• M8: 5,347,825 km (0.115 R)
• M9: 5,741,267 km (0.086 R)
• M10: 7,088,546 km (0.084 R)
• M11: 8,304,926 km (0.119 R)
• M12: 8,749,381 km (0.12 R)
• M13: 9,899,639 km (0.09 R)
• M14: 11,081,761 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.7

Radius: 9.1

Gravity: 10.35 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.29 AU - 2.07 AU

Year: 1477 Days

Day: 13.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,452,132 km

• M1: 113,246 km (0.045 R)
• M2: 448,046 km (0.101 R)
• M3: 1,219,971 km (0.071 R)
• M4: 1,534,126 km (0.102 R)
• M5: 2,161,240 km (0.116 R)
• M6: 2,627,387 km (0.106 R)
• M7: 3,883,710 km (0.062 R)
• M8: 4,323,229 km (0.08 R)
• M9: 4,836,649 km (0.062 R)
• M10: 5,659,587 km (0.078 R)
• M11: 6,397,703 km (0.083 R)
• M12: 7,198,500 km (0.114 R)
• M13: 7,834,740 km (0.047 R)
• M14: 8,843,179 km (0.081 R)
• M15: 9,411,052 km (0.086 R)
• M16: 12,042,030 km (0.109 R)
• M17: 12,465,243 km (0.114 R)
• M18: 13,300,896 km (0.068 R)
• M19: 13,711,692 km (0.088 R)
• M20: 14,088,529 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.7

Radius: 9.3

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.92 AU - 2.5 AU

Year: 2228 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,452,132 km

• M1: 119,529 km (0.107 R)
• M2: 527,482 km (0.114 R)
• M3: 1,218,475 km (0.119 R)
• M4: 1,888,972 km (0.087 R)
• M5: 2,307,547 km (0.081 R)
• M6: 2,841,761 km (0.113 R)
• M7: 3,168,034 km (0.1 R)
• M8: 4,337,141 km (0.113 R)
• M9: 5,596,307 km (0.028 R)
• M10: 6,707,969 km (0.097 R)
• M11: 9,393,400 km (0.055 R)
• M12: 11,233,005 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.3

Radius: 11.8

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2 AU - 2.82 AU

Year: 2538 Days

Day: 9.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,452,132 km

• M1: 146,756 km (0.107 R)
• M2: 632,201 km (0.117 R)
• M3: 1,187,508 km (0.11 R)
• M4: 1,748,650 km (0.096 R)
• M5: 2,509,055 km (0.101 R)
• M6: 2,905,939 km (0.115 R)
• M7: 3,328,553 km (0.072 R)
• M8: 4,279,397 km (0.051 R)
• M9: 5,495,029 km (0.03 R)
• M10: 6,246,459 km (0.078 R)
• M11: 7,175,911 km (0.106 R)
• M12: 9,045,734 km (0.118 R)
• M13: 9,954,093 km (0.079 R)
• M14: 10,996,341 km (0.111 R)
• M15: 11,795,493 km (0.116 R)
• M16: 12,189,384 km (0.056 R)
• M17: 13,170,896 km (0.069 R)
• M18: 14,381,741 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.4

Radius: 10.7

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.47 AU - 2.65 AU

Year: 2778 Days

Day: 6.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,452,132 km

• M1: 133,890 km (0.062 R)
• M2: 522,994 km (0.091 R)
• M3: 1,016,817 km (0.115 R)
• M4: 1,419,085 km (0.083 R)
• M5: 1,895,854 km (0.116 R)
• M6: 2,243,818 km (0.058 R)
• M7: 2,798,079 km (0.102 R)
• M8: 4,255,611 km (0.058 R)
• M9: 4,798,651 km (0.083 R)
• M10: 5,722,119 km (0.051 R)
• M11: 6,214,296 km (0.083 R)
• M12: 7,834,141 km (0.104 R)
• M13: 8,531,267 km (0.05 R)
• M14: 12,304,574 km (0.066 R)
• M15: 13,489,390 km (0.074 R)
• M16: 13,942,222 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.9

Radius: 10.9

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.51 AU - 4.97 AU

Year: 5922 Days

Day: 14.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,452,132 km

• M1: 136,882 km (0.108 R)
• M2: 624,870 km (0.115 R)
• M3: 1,388,268 km (0.118 R)
• M4: 2,050,987 km (0.11 R)
• M5: 2,695,604 km (0.111 R)
• M6: 3,183,742 km (0.043 R)
• M7: 3,642,409 km (0.089 R)
• M8: 4,438,120 km (0.098 R)
• M9: 5,232,934 km (0.1 R)
• M10: 5,576,560 km (0.112 R)
• M11: 6,866,243 km (0.102 R)
• M12: 7,966,236 km (0.082 R)
• M13: 9,016,712 km (0.053 R)
• M14: 10,831,185 km (0.068 R)
• M15: 11,344,156 km (0.071 R)
• M16: 12,468,983 km (0.061 R)
• M17: 12,928,996 km (0.102 R)
• M18: 14,656,552 km (0.08 R)
• M19: 14,996,887 km (0.105 R)
• M20: 18,041,952 km (0.051 R)
• M21: 20,474,413 km (0.081 R)
• M22: 24,283,624 km (0.106 R)
• M23: 25,980,961 km (0.036 R)
• M24: 31,358,257 km (0.086 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: 239 - 14,668 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit