🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.56 AU - 0.58 AU

Year: 282 Days

Day: 46.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.5

Radius: 8.7

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.72 AU - 0.78 AU

Year: 426 Days

Day: 5.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 51.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,353,471 km

• M1: 108,159 km (0.09 R)
• M2: 477,965 km (0.087 R)
• M3: 827,276 km (0.107 R)
• M4: 1,129,314 km (0.116 R)
• M5: 1,499,419 km (0.05 R)
• M6: 1,894,507 km (0.088 R)
• M7: 2,691,116 km (0.09 R)
• M8: 3,077,527 km (0.11 R)
• M9: 3,476,655 km (0.114 R)
• M10: 3,936,070 km (0.109 R)
• M11: 4,796,108 km (0.086 R)
• M12: 5,176,535 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18

Radius: 14.9

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.84 AU - 1.32 AU

Year: 736 Days

Day: 12.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 41,353,471 km

• M1: 185,352 km (0.085 R)
• M2: 854,802 km (0.081 R)
• M3: 1,559,259 km (0.052 R)
• M4: 2,387,133 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.9

Radius: 8.5

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.13 AU - 2.25 AU

Year: 2126 Days

Day: 7.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,353,471 km

• M1: 105,766 km (0.11 R)
• M2: 874,549 km (0.08 R)
• M3: 1,326,484 km (0.094 R)
• M4: 1,619,098 km (0.083 R)
• M5: 2,055,176 km (0.065 R)
• M6: 3,226,676 km (0.093 R)
• M7: 6,643,492 km (0.106 R)
• M8: 7,199,248 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.7

Radius: 13

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.38 AU - 2.82 AU

Year: 2750 Days

Day: 13.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 117.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,353,471 km

• M1: 161,865 km (0.072 R)
• M2: 604,525 km (0.119 R)
• M3: 1,533,977 km (0.101 R)
• M4: 2,400,896 km (0.116 R)
• M5: 2,971,163 km (0.097 R)
• M6: 4,731,182 km (0.116 R)
• M7: 5,594,063 km (0.11 R)
• M8: 6,340,556 km (0.095 R)
• M9: 8,185,846 km (0.046 R)
• M10: 9,571,721 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.4

Radius: 10.7

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.92 AU - 3.72 AU

Year: 3968 Days

Day: 7.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 127.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,353,471 km

• M1: 135,536 km (0.043 R)
• M2: 510,877 km (0.117 R)
• M3: 950,844 km (0.112 R)
• M4: 1,781,711 km (0.046 R)
• M5: 3,567,610 km (0.096 R)
• M6: 4,457,867 km (0.072 R)
• M7: 4,800,296 km (0.118 R)
• M8: 5,370,713 km (0.092 R)
• M9: 5,834,018 km (0.08 R)
• M10: 7,474,957 km (0.098 R)
• M11: 8,369,851 km (0.103 R)
• M12: 9,300,200 km (0.086 R)
• M13: 11,484,629 km (0.114 R)
• M14: 15,060,317 km (0.114 R)
• M15: 15,541,872 km (0.11 R)
• M16: 17,099,934 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.5

Radius: 9.1

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 4.4 AU - 5.28 AU

Year: 6985 Days

Day: 12.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 154.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 41,353,471 km

• M1: 113,545 km (0.117 R)
• M2: 794,664 km (0.081 R)
• M3: 1,331,870 km (0.112 R)
• M4: 1,770,640 km (0.118 R)
• M5: 2,922,544 km (0.068 R)
• M6: 3,819,682 km (0.112 R)
• M7: 4,440,065 km (0.105 R)
• M8: 4,941,816 km (0.095 R)
• M9: 6,270,245 km (0.075 R)
• M10: 6,837,221 km (0.068 R)
• M11: 8,330,357 km (0.112 R)
• M12: 8,706,746 km (0.063 R)
• M13: 9,493,331 km (0.068 R)
• M14: 10,198,685 km (0.104 R)
• M15: 10,938,447 km (0.116 R)
• M16: 12,043,227 km (0.12 R)
• M17: 12,379,074 km (0.078 R)
• M18: 13,019,353 km (0.116 R)
• M19: 13,373,152 km (0.087 R)
• M20: 13,681,473 km (0.118 R)
• M21: 14,581,005 km (0.067 R)
• M22: 16,322,175 km (0.102 R)
• M23: 17,273,169 km (0.049 R)
• M24: 19,745,124 km (0.109 R)
• M25: 24,603,464 km (0.101 R)
• M26: 25,457,818 km (0.105 R)
• M27: 28,055,285 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.5

Radius: 14.1

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.27 AU - 6.19 AU

Year: 7846 Days

Day: 5.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,353,471 km

• M1: 188,344 km (0.067 R)
• M2: 1,265,000 km (0.115 R)
• M3: 1,940,883 km (0.047 R)
• M4: 2,771,450 km (0.096 R)
• M5: 4,844,129 km (0.103 R)
• M6: 6,951,963 km (0.075 R)
• M7: 9,894,553 km (0.115 R)
• M8: 12,615,738 km (0.074 R)
• M9: 13,352,956 km (0.072 R)
• M10: 15,101,007 km (0.058 R)
• M11: 18,323,046 km (0.098 R)
• M12: 21,417,030 km (0.086 R)
• M13: 22,466,907 km (0.087 R)
• M14: 23,891,079 km (0.101 R)
• M15: 24,668,988 km (0.115 R)
• M16: 39,288,889 km (0.112 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 18,021 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit