🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.3

Radius: 10.8

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.77 AU - 0.93 AU

Year: 541 Days

Day: 7.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,692,533 km

• M1: 134,339 km (0.079 R)
• M2: 494,421 km (0.081 R)
• M3: 1,240,615 km (0.069 R)
• M4: 1,865,934 km (0.067 R)
• M5: 2,419,147 km (0.116 R)
• M6: 4,544,035 km (0.052 R)
• M7: 4,992,530 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.6

Radius: 11.2

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.08 AU - 1.56 AU

Year: 1047 Days

Day: 8.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,692,533 km

• M1: 139,276 km (0.031 R)
• M2: 806,333 km (0.092 R)
• M3: 1,161,627 km (0.112 R)
• M4: 1,522,757 km (0.041 R)
• M5: 2,034,980 km (0.06 R)
• M6: 2,481,829 km (0.084 R)
• M7: 3,328,852 km (0.072 R)
• M8: 4,060,086 km (0.101 R)
• M9: 4,860,584 km (0.078 R)
• M10: 5,344,833 km (0.106 R)
• M11: 6,142,040 km (0.056 R)
• M12: 6,601,455 km (0.113 R)
• M13: 7,264,772 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.6

Radius: 14.7

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.37 AU - 1.83 AU

Year: 1397 Days

Day: 10.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,692,533 km

• M1: 182,809 km (0.099 R)
• M2: 764,296 km (0.066 R)
• M3: 1,254,229 km (0.063 R)
• M4: 1,787,246 km (0.105 R)
• M5: 3,059,127 km (0.07 R)
• M6: 3,768,221 km (0.072 R)
• M7: 4,550,468 km (0.108 R)
• M8: 5,111,610 km (0.072 R)
• M9: 5,577,607 km (0.057 R)
• M10: 6,178,841 km (0.116 R)
• M11: 7,911,633 km (0.068 R)
• M12: 8,808,622 km (0.046 R)
• M13: 9,539,557 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385

Radius: 13

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.8 AU - 1.96 AU

Year: 1779 Days

Day: 7 Hours

Environment

Temp: -195 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,692,533 km

• M1: 224,546 km (0.093 R)
• M2: 994,377 km (0.119 R)
• M3: 1,419,684 km (0.105 R)
• M4: 1,949,111 km (0.083 R)
• M5: 3,860,074 km (0.074 R)
• M6: 4,489,881 km (0.118 R)
• M7: 5,066,281 km (0.109 R)
• M8: 6,205,619 km (0.068 R)
• M9: 6,972,308 km (0.043 R)
• M10: 7,482,885 km (0.103 R)
• M11: 8,295,651 km (0.071 R)
• M12: 10,129,272 km (0.116 R)
• M13: 12,002,237 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.9

Radius: 10.2

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.7 AU - 2.4 AU

Year: 2026 Days

Day: 5.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,692,533 km

• M1: 127,009 km (0.064 R)
• M2: 557,551 km (0.116 R)
• M3: 2,684,085 km (0.085 R)
• M4: 3,739,947 km (0.11 R)
• M5: 4,290,018 km (0.098 R)
• M6: 4,956,477 km (0.086 R)
• M7: 5,415,742 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.9

Radius: 12.3

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.3 AU - 2.44 AU

Year: 2518 Days

Day: 10.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,692,533 km

• M1: 153,039 km (0.11 R)
• M2: 543,639 km (0.094 R)
• M3: 938,427 km (0.029 R)
• M4: 1,567,486 km (0.087 R)
• M5: 2,189,963 km (0.054 R)
• M6: 2,989,115 km (0.116 R)
• M7: 3,757,300 km (0.114 R)
• M8: 4,261,894 km (0.099 R)
• M9: 4,927,006 km (0.105 R)
• M10: 5,737,378 km (0.077 R)
• M11: 6,298,220 km (0.109 R)
• M12: 7,072,688 km (0.073 R)
• M13: 7,718,053 km (0.093 R)
• M14: 8,104,315 km (0.086 R)
• M15: 10,081,101 km (0.089 R)
• M16: 11,593,835 km (0.103 R)
• M17: 12,448,338 km (0.111 R)
• M18: 13,761,359 km (0.114 R)
• M19: 15,315,232 km (0.119 R)
• M20: 16,082,519 km (0.076 R)
• M21: 19,528,955 km (0.089 R)
• M22: 19,946,782 km (0.031 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.5

Radius: 12.4

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.71 AU - 3.07 AU

Year: 3391 Days

Day: 9.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,692,533 km

• M1: 154,235 km (0.063 R)
• M2: 839,992 km (0.025 R)
• M3: 1,300,155 km (0.078 R)
• M4: 2,332,680 km (0.119 R)
• M5: 2,774,442 km (0.062 R)
• M6: 3,563,272 km (0.079 R)
• M7: 4,065,472 km (0.112 R)
• M8: 6,969,914 km (0.108 R)
• M9: 7,556,488 km (0.117 R)
• M10: 8,498,206 km (0.085 R)
• M11: 11,042,118 km (0.114 R)
• M12: 11,795,194 km (0.089 R)
• M13: 12,868,409 km (0.094 R)
• M14: 16,029,711 km (0.085 R)
• M15: 16,764,985 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 907.5

Radius: 4.5

Gravity: 44.81 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.37 AU - 8.01 AU

Year: 13308 Days

Day: 20 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,692,533 km

• M1: 59,989 km (0.049 R)
• M2: 242,049 km (0.052 R)
• M3: 596,148 km (0.116 R)
• M4: 830,268 km (0.037 R)
• M5: 2,160,792 km (0.117 R)
• M6: 2,405,833 km (0.072 R)
• M7: 2,761,128 km (0.118 R)
• M8: 3,492,961 km (0.113 R)
• M9: 3,859,924 km (0.032 R)
• M10: 4,474,024 km (0.118 R)
• M11: 5,080,344 km (0.043 R)
• M12: 5,476,778 km (0.119 R)
• M13: 5,854,812 km (0.05 R)
• M14: 7,588,651 km (0.074 R)
• M15: 8,748,184 km (0.089 R)
• M16: 9,055,458 km (0.097 R)
• M17: 9,317,105 km (0.098 R)
• M18: 10,357,409 km (0.107 R)
• M19: 12,601,077 km (0.073 R)
• M20: 13,192,139 km (0.118 R)
• M21: 14,288,242 km (0.071 R)
• M22: 19,281,370 km (0.104 R)
• M23: 19,540,324 km (0.115 R)
• M24: 21,326,822 km (0.093 R)
• M25: 28,434,366 km (0.099 R)
• M26: 34,000,454 km (0.043 R)
• M27: 35,919,047 km (0.08 R)
• M28: 36,574,136 km (0.092 R)
• M29: 40,815,385 km (0.067 R)
• M30: 48,645,787 km (0.088 R)
• M31: 53,930,032 km (0.114 R)
• M32: 57,241,830 km (0.07 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: 199 - 12,098 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit