🌌 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: 25

Radius: 8.5

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.43 AU - 0.65 AU

Year: 274 Days

Day: 12.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 64,012,210 km

• M1: 106,364 km (0.109 R)
• M2: 714,629 km (0.064 R)
• M3: 1,018,163 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.3

Radius: 11

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.59 AU - 0.65 AU

Year: 337 Days

Day: 12 Hours

Environment

Temp: -156 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,012,210 km

• M1: 136,882 km (0.118 R)
• M2: 566,677 km (0.11 R)
• M3: 975,378 km (0.063 R)
• M4: 1,398,890 km (0.107 R)
• M5: 1,839,007 km (0.073 R)
• M6: 2,188,617 km (0.096 R)
• M7: 3,493,559 km (0.115 R)
• M8: 3,882,813 km (0.096 R)
• M9: 4,985,199 km (0.08 R)
• M10: 5,432,647 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.4

Radius: 12.4

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.78 AU - 0.86 AU

Year: 513 Days

Day: 13.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,012,210 km

• M1: 154,235 km (0.118 R)
• M2: 683,812 km (0.086 R)
• M3: 1,083,089 km (0.119 R)
• M4: 1,485,507 km (0.119 R)
• M5: 2,030,641 km (0.026 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.4

Radius: 13

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.31 AU - 1.73 AU

Year: 1294 Days

Day: 5.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,012,210 km

• M1: 162,014 km (0.071 R)
• M2: 602,580 km (0.101 R)
• M3: 1,079,199 km (0.093 R)
• M4: 1,603,390 km (0.091 R)
• M5: 2,700,840 km (0.11 R)
• M6: 4,085,518 km (0.079 R)
• M7: 5,386,571 km (0.112 R)
• M8: 5,876,803 km (0.109 R)
• M9: 6,718,291 km (0.069 R)
• M10: 7,287,361 km (0.079 R)
• M11: 7,916,570 km (0.045 R)
• M12: 8,552,061 km (0.102 R)
• M13: 8,974,077 km (0.079 R)
• M14: 9,473,285 km (0.111 R)
• M15: 10,838,067 km (0.097 R)
• M16: 12,597,786 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10

Radius: 8.4

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.43 AU - 1.77 AU

Year: 1397 Days

Day: 7.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 60.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,012,210 km

• M1: 105,317 km (0.111 R)
• M2: 571,464 km (0.075 R)
• M3: 1,325,288 km (0.051 R)
• M4: 1,707,211 km (0.057 R)
• M5: 2,218,237 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.1

Radius: 13

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.58 AU - 2.58 AU

Year: 2071 Days

Day: 7.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 64,012,210 km

• M1: 163,660 km (0.07 R)
• M2: 773,720 km (0.072 R)
• M3: 1,434,793 km (0.104 R)
• M4: 2,298,422 km (0.091 R)
• M5: 3,657,518 km (0.085 R)
• M6: 4,174,977 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.6

Radius: 12.1

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.25 AU - 3.07 AU

Year: 2995 Days

Day: 10.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,012,210 km

• M1: 154,385 km (0.112 R)
• M2: 810,820 km (0.113 R)
• M3: 1,301,352 km (0.103 R)
• M4: 1,857,706 km (0.09 R)
• M5: 2,791,646 km (0.097 R)
• M6: 3,340,670 km (0.111 R)
• M7: 4,299,293 km (0.093 R)
• M8: 4,718,616 km (0.104 R)
• M9: 7,493,657 km (0.114 R)
• M10: 8,283,832 km (0.102 R)
• M11: 8,841,085 km (0.054 R)
• M12: 10,990,656 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.3

Radius: 14.4

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.51 AU - 4.91 AU

Year: 5963 Days

Day: 12.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 80.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,012,210 km

• M1: 182,659 km (0.113 R)
• M2: 1,031,777 km (0.114 R)
• M3: 1,516,324 km (0.038 R)
• M4: 2,042,759 km (0.111 R)
• M5: 2,558,124 km (0.115 R)
• M6: 3,296,239 km (0.11 R)
• M7: 4,361,376 km (0.12 R)
• M8: 5,254,775 km (0.087 R)
• M9: 6,901,997 km (0.069 R)
• M10: 7,898,618 km (0.116 R)
• M11: 9,468,797 km (0.036 R)
• M12: 10,655,258 km (0.108 R)
• M13: 11,843,663 km (0.082 R)
• M14: 12,667,200 km (0.059 R)
• M15: 14,321,154 km (0.047 R)
• M16: 15,312,539 km (0.103 R)
• M17: 16,884,962 km (0.114 R)
• M18: 17,493,825 km (0.096 R)
• M19: 18,885,086 km (0.052 R)
• M20: 20,417,267 km (0.113 R)
• M21: 21,248,882 km (0.117 R)
• M22: 21,815,857 km (0.118 R)
• M23: 23,128,280 km (0.12 R)
• M24: 23,728,167 km (0.112 R)
• M25: 25,431,788 km (0.108 R)
• M26: 28,138,163 km (0.099 R)
• M27: 28,822,124 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.9

Radius: 3.9

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 6 AU - 8.04 AU

Year: 12839 Days

Day: 22.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 88.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,012,210 km

• M1: 49,218 km (0.086 R)
• M2: 184,903 km (0.1 R)
• M3: 604,974 km (0.086 R)
• M4: 800,349 km (0.07 R)
• M5: 1,546,842 km (0.112 R)
• M6: 1,826,440 km (0.052 R)
• M7: 2,624,994 km (0.117 R)
• M8: 3,327,356 km (0.08 R)
• M9: 3,772,260 km (0.074 R)
• M10: 4,040,489 km (0.095 R)
• M11: 5,217,525 km (0.073 R)
• M12: 12,035,298 km (0.118 R)
• M13: 13,215,027 km (0.069 R)
• M14: 17,325,229 km (0.063 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.4

Radius: 5.7

Gravity: 20.2 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 6.97 AU - 9.13 AU

Year: 15765 Days

Day: 22.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,012,210 km

• M1: 73,004 km (0.114 R)
• M2: 443,857 km (0.1 R)
• M3: 1,598,304 km (0.088 R)
• M4: 2,696,502 km (0.116 R)
• M5: 3,415,918 km (0.043 R)
• M6: 4,350,007 km (0.099 R)
• M7: 6,880,455 km (0.084 R)
• M8: 7,639,664 km (0.058 R)
• M9: 10,421,586 km (0.066 R)
• M10: 10,767,307 km (0.077 R)
• M11: 11,420,750 km (0.106 R)
• M12: 12,482,147 km (0.113 R)
• M13: 14,513,088 km (0.118 R)
• M14: 18,705,568 km (0.108 R)
• M15: 19,474,800 km (0.103 R)
• M16: 22,571,626 km (0.094 R)
• M17: 27,589,288 km (0.077 R)
• M18: 41,742,294 km (0.119 R)
• M19: 46,995,573 km (0.041 R)
• M20: 59,153,392 km (0.074 R)
• M21: 59,884,177 km (0.08 R)
• M22: 62,868,206 km (0.112 R)
• M23: 63,438,473 km (0.113 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 16,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit