🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.1

Radius: 14.8

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.87 AU - 0.93 AU

Year: 560 Days

Day: 10.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,709,827 km

• M1: 184,005 km (0.084 R)
• M2: 663,616 km (0.095 R)
• M3: 1,138,589 km (0.112 R)
• M4: 1,862,793 km (0.12 R)
• M5: 2,592,382 km (0.075 R)
• M6: 3,257,045 km (0.079 R)
• M7: 3,717,357 km (0.072 R)
• M8: 4,567,223 km (0.073 R)
• M9: 5,960,428 km (0.099 R)
• M10: 7,022,423 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 14.6

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.35 AU - 1.75 AU

Year: 1266 Days

Day: 12.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,709,827 km

• M1: 181,612 km (0.082 R)
• M2: 1,099,544 km (0.108 R)
• M3: 2,879,161 km (0.119 R)
• M4: 3,585,861 km (0.087 R)
• M5: 4,135,633 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.6

Radius: 12.4

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.65 AU - 2.29 AU

Year: 1814 Days

Day: 13.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,709,827 km

• M1: 154,235 km (0.08 R)
• M2: 669,600 km (0.111 R)
• M3: 1,398,142 km (0.079 R)
• M4: 1,851,274 km (0.115 R)
• M5: 2,243,370 km (0.11 R)
• M6: 3,245,825 km (0.035 R)
• M7: 4,705,601 km (0.119 R)
• M8: 5,184,613 km (0.12 R)
• M9: 5,952,649 km (0.053 R)
• M10: 7,031,100 km (0.077 R)
• M11: 8,059,585 km (0.057 R)
• M12: 9,671,502 km (0.055 R)
• M13: 10,518,675 km (0.099 R)
• M14: 11,014,442 km (0.074 R)
• M15: 11,976,506 km (0.116 R)
• M16: 12,913,438 km (0.071 R)
• M17: 13,856,802 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.3

Radius: 9.6

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.81 AU - 4.33 AU

Year: 4425 Days

Day: 11.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,709,827 km

• M1: 119,529 km (0.051 R)
• M2: 451,636 km (0.102 R)
• M3: 1,255,725 km (0.084 R)
• M4: 1,883,288 km (0.078 R)
• M5: 2,315,326 km (0.036 R)
• M6: 2,938,701 km (0.06 R)
• M7: 3,648,842 km (0.09 R)
• M8: 4,420,617 km (0.06 R)
• M9: 6,072,776 km (0.094 R)
• M10: 6,409,670 km (0.07 R)
• M11: 6,954,955 km (0.093 R)
• M12: 8,586,469 km (0.114 R)
• M13: 9,491,536 km (0.069 R)
• M14: 10,072,724 km (0.041 R)
• M15: 14,663,134 km (0.04 R)
• M16: 17,811,422 km (0.052 R)
• M17: 18,953,901 km (0.064 R)
• M18: 27,183,279 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.3

Radius: 8.9

Gravity: 8.93 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.04 AU - 4.46 AU

Year: 4764 Days

Day: 10.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,709,827 km

• M1: 111,750 km (0.086 R)
• M2: 517,609 km (0.117 R)
• M3: 2,291,839 km (0.116 R)
• M4: 3,346,205 km (0.1 R)
• M5: 6,126,482 km (0.094 R)
• M6: 9,951,400 km (0.071 R)
• M7: 11,099,264 km (0.116 R)
• M8: 11,516,493 km (0.106 R)
• M9: 12,040,684 km (0.104 R)
• M10: 14,028,092 km (0.083 R)
• M11: 15,411,423 km (0.026 R)
• M12: 16,165,696 km (0.06 R)
• M13: 22,516,424 km (0.104 R)
• M14: 23,791,447 km (0.101 R)
• M15: 24,252,657 km (0.094 R)
• M16: 26,566,936 km (0.06 R)
• M17: 27,566,250 km (0.108 R)
• M18: 29,199,410 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.5

Radius: 12.5

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.65 AU - 4.59 AU

Year: 5486 Days

Day: 12.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,709,827 km

• M1: 155,432 km (0.054 R)
• M2: 579,692 km (0.104 R)
• M3: 1,267,842 km (0.101 R)
• M4: 2,429,469 km (0.101 R)
• M5: 3,130,784 km (0.118 R)
• M6: 3,589,751 km (0.111 R)
• M7: 5,296,812 km (0.097 R)
• M8: 6,066,942 km (0.116 R)
• M9: 6,878,809 km (0.041 R)
• M10: 7,795,844 km (0.082 R)
• M11: 8,572,257 km (0.069 R)
• M12: 9,017,161 km (0.11 R)
• M13: 10,197,339 km (0.05 R)
• M14: 10,910,322 km (0.119 R)
• M15: 11,389,185 km (0.096 R)
• M16: 11,882,110 km (0.088 R)
• M17: 13,997,873 km (0.098 R)
• M18: 14,511,741 km (0.107 R)
• M19: 14,931,962 km (0.072 R)
• M20: 17,214,377 km (0.087 R)
• M21: 20,960,606 km (0.111 R)
• M22: 25,143,363 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.6

Radius: 11.7

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.46 AU - 5.12 AU

Year: 6877 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,709,827 km

• M1: 145,559 km (0.12 R)
• M2: 699,968 km (0.095 R)
• M3: 1,175,390 km (0.034 R)
• M4: 1,651,560 km (0.096 R)
• M5: 2,114,566 km (0.106 R)
• M6: 2,487,962 km (0.119 R)
• M7: 2,963,833 km (0.054 R)
• M8: 4,374,092 km (0.091 R)
• M9: 5,329,873 km (0.061 R)
• M10: 6,062,155 km (0.057 R)
• M11: 6,553,135 km (0.105 R)
• M12: 7,917,019 km (0.08 R)
• M13: 8,345,018 km (0.1 R)
• M14: 9,418,682 km (0.101 R)
• M15: 14,189,208 km (0.098 R)
• M16: 17,479,015 km (0.108 R)
• M17: 21,098,087 km (0.106 R)
• M18: 22,151,705 km (0.062 R)
• M19: 23,637,361 km (0.075 R)
• M20: 26,117,095 km (0.067 R)
• M21: 29,966,548 km (0.107 R)
• M22: 30,342,787 km (0.101 R)
• M23: 32,766,571 km (0.03 R)
• M24: 34,076,600 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.6

Radius: 7.8

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.68 AU - 9.58 AU

Year: 18097 Days

Day: 18.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 64,709,827 km

• M1: 96,939 km (0.112 R)
• M2: 392,545 km (0.029 R)
• M3: 757,264 km (0.116 R)
• M4: 1,168,359 km (0.098 R)
• M5: 1,592,769 km (0.085 R)
• M6: 2,135,809 km (0.117 R)
• M7: 2,526,110 km (0.109 R)
• M8: 4,325,922 km (0.047 R)
• M9: 5,563,545 km (0.111 R)
• M10: 7,514,002 km (0.065 R)
• M11: 7,981,346 km (0.098 R)
• M12: 13,099,089 km (0.111 R)
• M13: 14,263,708 km (0.063 R)
• M14: 14,547,495 km (0.093 R)
• M15: 15,720,642 km (0.034 R)
• M16: 17,354,400 km (0.082 R)
• M17: 19,880,360 km (0.081 R)
• M18: 20,503,136 km (0.067 R)
• M19: 21,694,234 km (0.118 R)
• M20: 22,164,421 km (0.074 R)
• M21: 24,719,552 km (0.085 R)
• M22: 34,434,887 km (0.076 R)
• M23: 44,429,670 km (0.031 R)
• M24: 47,042,846 km (0.071 R)
• M25: 49,919,613 km (0.066 R)
• M26: 53,934,820 km (0.114 R)
• M27: 55,319,647 km (0.064 R)
• M28: 57,262,325 km (0.094 R)
• M29: 58,703,401 km (0.046 R)
• M30: 59,432,840 km (0.09 R)
• M31: 60,910,119 km (0.046 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: 444 - 17,881 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit