🌌 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: 761.5

Radius: 14.2

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.44 AU - 0.64 AU

Year: 269 Days

Day: 11.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,790,911 km

• M1: 176,675 km (0.093 R)
• M2: 692,937 km (0.062 R)
• M3: 1,158,336 km (0.094 R)
• M4: 2,086,442 km (0.101 R)
• M5: 2,652,071 km (0.11 R)
• M6: 3,309,254 km (0.079 R)
• M7: 3,965,840 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.8

Radius: 10.3

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.75 AU - 1.01 AU

Year: 560 Days

Day: 5.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,790,911 km

• M1: 128,804 km (0.11 R)
• M2: 452,534 km (0.103 R)
• M3: 830,119 km (0.042 R)
• M4: 1,223,262 km (0.106 R)
• M5: 3,040,876 km (0.098 R)
• M6: 4,056,346 km (0.072 R)
• M7: 4,380,226 km (0.07 R)
• M8: 4,785,486 km (0.096 R)
• M9: 5,181,621 km (0.046 R)
• M10: 6,346,540 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.2

Radius: 11.1

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.78 AU - 1.28 AU

Year: 709 Days

Day: 11.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,790,911 km

• M1: 138,079 km (0.098 R)
• M2: 537,356 km (0.089 R)
• M3: 943,364 km (0.079 R)
• M4: 1,489,247 km (0.063 R)
• M5: 1,989,502 km (0.092 R)
• M6: 2,801,370 km (0.052 R)
• M7: 3,675,021 km (0.111 R)
• M8: 4,083,274 km (0.069 R)
• M9: 4,784,140 km (0.084 R)
• M10: 5,651,209 km (0.098 R)
• M11: 6,029,841 km (0.099 R)
• M12: 6,818,222 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.9

Radius: 10.8

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.08 AU - 1.22 AU

Year: 836 Days

Day: 5.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,790,911 km

• M1: 135,386 km (0.083 R)
• M2: 826,977 km (0.11 R)
• M3: 1,437,935 km (0.081 R)
• M4: 2,085,245 km (0.073 R)
• M5: 2,895,467 km (0.081 R)
• M6: 3,510,464 km (0.051 R)
• M7: 4,518,903 km (0.073 R)
• M8: 5,033,819 km (0.053 R)
• M9: 5,888,621 km (0.072 R)
• M10: 6,679,246 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.5

Radius: 8.8

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.18 AU - 1.62 AU

Year: 1124 Days

Day: 14 Hours

Environment

Temp: -183 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,790,911 km

• M1: 109,506 km (0.092 R)
• M2: 396,285 km (0.065 R)
• M3: 724,652 km (0.05 R)
• M4: 1,004,550 km (0.053 R)
• M5: 1,381,985 km (0.082 R)
• M6: 2,268,053 km (0.099 R)
• M7: 2,693,958 km (0.087 R)
• M8: 3,214,709 km (0.077 R)
• M9: 3,492,063 km (0.104 R)
• M10: 3,929,936 km (0.099 R)
• M11: 4,316,796 km (0.115 R)
• M12: 5,011,678 km (0.089 R)
• M13: 5,467,204 km (0.089 R)
• M14: 5,950,255 km (0.08 R)
• M15: 7,171,722 km (0.099 R)
• M16: 9,262,352 km (0.102 R)
• M17: 9,736,727 km (0.05 R)
• M18: 10,320,907 km (0.078 R)
• M19: 10,605,741 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.2

Radius: 13.6

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.63 AU - 5.47 AU

Year: 6583 Days

Day: 9.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,790,911 km

• M1: 169,195 km (0.114 R)
• M2: 692,638 km (0.102 R)
• M3: 1,505,553 km (0.052 R)
• M4: 2,703,682 km (0.073 R)
• M5: 5,807,389 km (0.11 R)
• M6: 6,749,108 km (0.069 R)
• M7: 7,520,285 km (0.095 R)
• M8: 9,459,672 km (0.085 R)
• M9: 10,860,506 km (0.077 R)
• M10: 13,609,816 km (0.08 R)
• M11: 15,329,892 km (0.036 R)
• M12: 18,489,250 km (0.12 R)
• M13: 19,270,300 km (0.088 R)
• M14: 22,456,136 km (0.07 R)
• M15: 23,923,392 km (0.11 R)
• M16: 27,229,356 km (0.069 R)
• M17: 29,086,464 km (0.097 R)
• M18: 29,563,681 km (0.119 R)
• M19: 37,027,867 km (0.037 R)
• M20: 37,701,356 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438.3

Radius: 4.9

Gravity: 18.25 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 6.96 AU - 8.08 AU

Year: 13987 Days

Day: 21.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 21,790,911 km

• M1: 60,886 km (0.119 R)
• M2: 272,268 km (0.078 R)
• M3: 461,509 km (0.112 R)
• M4: 1,110,764 km (0.098 R)
• M5: 1,539,362 km (0.089 R)
• M6: 1,704,518 km (0.083 R)
• M7: 1,865,037 km (0.1 R)
• M8: 2,569,942 km (0.109 R)
• M9: 4,456,221 km (0.105 R)
• M10: 4,762,747 km (0.034 R)
• M11: 5,083,186 km (0.073 R)
• M12: 5,282,301 km (0.08 R)
• M13: 5,911,061 km (0.104 R)
• M14: 6,865,196 km (0.104 R)
• M15: 7,149,731 km (0.103 R)
• M16: 7,527,166 km (0.094 R)
• M17: 11,150,277 km (0.087 R)
• M18: 12,962,655 km (0.108 R)
• M19: 13,147,858 km (0.103 R)
• M20: 18,450,205 km (0.073 R)
• M21: 22,621,592 km (0.103 R)
• M22: 23,251,548 km (0.107 R)
• M23: 24,452,520 km (0.094 R)
• M24: 25,694,033 km (0.091 R)
• M25: 29,563,531 km (0.101 R)
• M26: 29,777,307 km (0.116 R)
• M27: 31,972,356 km (0.071 R)
• M28: 32,879,667 km (0.051 R)
• M29: 35,222,968 km (0.08 R)
• M30: 40,897,664 km (0.106 R)
• M31: 43,742,717 km (0.049 R)
• M32: 47,737,279 km (0.036 R)
• M33: 48,475,395 km (0.105 R)
• M34: 49,822,823 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.6

Radius: 4.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 7.7 AU - 9.88 AU

Year: 17676 Days

Day: 18.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,790,911 km

• M1: 59,690 km (0.073 R)
• M2: 2,647,733 km (0.108 R)
• M3: 3,519,739 km (0.074 R)
• M4: 14,567,990 km (0.086 R)
• M5: 19,954,561 km (0.089 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 15,591 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit