🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.8

Radius: 13.9

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.51 AU - 0.65 AU

Year: 300 Days

Day: 14.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,193,142 km

• M1: 172,935 km (0.09 R)
• M2: 681,568 km (0.088 R)
• M3: 1,135,149 km (0.108 R)
• M4: 1,771,987 km (0.075 R)
• M5: 2,595,224 km (0.118 R)
• M6: 3,148,437 km (0.115 R)
• M7: 3,696,713 km (0.1 R)
• M8: 4,549,870 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.8

Radius: 12.3

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.62 AU - 0.96 AU

Year: 476 Days

Day: 8.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,193,142 km

• M1: 153,039 km (0.112 R)
• M2: 578,345 km (0.1 R)
• M3: 1,161,328 km (0.089 R)
• M4: 1,758,673 km (0.077 R)
• M5: 2,608,388 km (0.113 R)
• M6: 3,578,381 km (0.098 R)
• M7: 3,987,082 km (0.072 R)
• M8: 4,440,214 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.4

Radius: 12.7

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.67 AU - 0.97 AU

Year: 504 Days

Day: 7.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,193,142 km

• M1: 157,975 km (0.089 R)
• M2: 607,966 km (0.115 R)
• M3: 1,374,056 km (0.046 R)
• M4: 1,880,146 km (0.1 R)
• M5: 2,459,239 km (0.086 R)
• M6: 2,943,936 km (0.031 R)
• M7: 3,352,339 km (0.106 R)
• M8: 3,757,599 km (0.06 R)
• M9: 4,166,600 km (0.081 R)
• M10: 4,992,081 km (0.059 R)
• M11: 5,559,206 km (0.034 R)
• M12: 6,017,275 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.7

Radius: 12

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.87 AU - 0.97 AU

Year: 599 Days

Day: 5.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,193,142 km

• M1: 149,299 km (0.114 R)
• M2: 537,206 km (0.114 R)
• M3: 917,783 km (0.108 R)
• M4: 1,333,815 km (0.095 R)
• M5: 1,790,836 km (0.078 R)
• M6: 2,166,626 km (0.092 R)
• M7: 2,728,665 km (0.102 R)
• M8: 3,156,066 km (0.059 R)
• M9: 3,604,561 km (0.09 R)
• M10: 4,173,332 km (0.091 R)
• M11: 4,960,366 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.2

Radius: 11.5

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.98 AU - 1.02 AU

Year: 678 Days

Day: 12.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,193,142 km

• M1: 144,063 km (0.102 R)
• M2: 1,079,349 km (0.115 R)
• M3: 1,611,019 km (0.085 R)
• M4: 1,990,848 km (0.101 R)
• M5: 2,512,197 km (0.058 R)
• M6: 2,991,658 km (0.109 R)
• M7: 3,388,392 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732

Radius: 11.2

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.89 AU - 1.25 AU

Year: 751 Days

Day: 15 Hours

Environment

Temp: -183 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,193,142 km

• M1: 139,724 km (0.098 R)
• M2: 497,862 km (0.09 R)
• M3: 1,205,609 km (0.025 R)
• M4: 1,630,168 km (0.098 R)
• M5: 2,420,643 km (0.036 R)
• M6: 2,825,605 km (0.117 R)
• M7: 3,876,679 km (0.083 R)
• M8: 4,370,203 km (0.083 R)
• M9: 5,153,198 km (0.081 R)
• M10: 6,374,365 km (0.092 R)
• M11: 8,340,231 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.2

Radius: 14.1

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.24 AU - 1.88 AU

Year: 1322 Days

Day: 13.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,193,142 km

• M1: 175,329 km (0.034 R)
• M2: 834,158 km (0.09 R)
• M3: 1,291,927 km (0.049 R)
• M4: 2,871,681 km (0.094 R)
• M5: 5,949,956 km (0.109 R)
• M6: 6,403,537 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.3

Radius: 8.5

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.89 AU - 2.13 AU

Year: 1933 Days

Day: 13.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,193,142 km

• M1: 105,766 km (0.113 R)
• M2: 401,969 km (0.086 R)
• M3: 707,000 km (0.116 R)
• M4: 1,055,114 km (0.081 R)
• M5: 1,416,243 km (0.09 R)
• M6: 2,054,278 km (0.086 R)
• M7: 2,636,662 km (0.111 R)
• M8: 3,008,413 km (0.077 R)
• M9: 3,475,907 km (0.114 R)
• M10: 3,743,537 km (0.061 R)
• M11: 4,162,262 km (0.039 R)
• M12: 5,173,842 km (0.103 R)
• M13: 5,460,921 km (0.069 R)
• M14: 5,889,818 km (0.081 R)
• M15: 6,317,817 km (0.089 R)
• M16: 6,742,226 km (0.062 R)
• M17: 7,887,099 km (0.087 R)
• M18: 8,158,170 km (0.073 R)
• M19: 8,605,019 km (0.119 R)
• M20: 9,305,586 km (0.111 R)
• M21: 9,793,425 km (0.063 R)
• M22: 10,920,046 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.9

Radius: 15

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.67 AU - 2.63 AU

Year: 2138 Days

Day: 10.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,193,142 km

• M1: 186,549 km (0.09 R)
• M2: 2,042,161 km (0.04 R)
• M3: 3,517,644 km (0.105 R)
• M4: 4,395,335 km (0.06 R)
• M5: 5,354,557 km (0.12 R)
• M6: 6,201,281 km (0.104 R)
• M7: 9,854,311 km (0.087 R)
• M8: 10,605,741 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 488.3

Radius: 4

Gravity: 30.52 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 7.31 AU - 7.91 AU

Year: 14239 Days

Day: 24.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,193,142 km

• M1: 150,495 km (0.116 R)
• M2: 349,909 km (0.076 R)
• M3: 895,792 km (0.116 R)
• M4: 1,329,626 km (0.089 R)
• M5: 1,631,664 km (0.071 R)
• M6: 2,451,610 km (0.095 R)
• M7: 2,726,122 km (0.111 R)
• M8: 3,044,167 km (0.1 R)
• M9: 7,064,311 km (0.07 R)
• M10: 12,460,605 km (0.112 R)
• M11: 18,304,347 km (0.03 R)
• M12: 19,592,534 km (0.072 R)
• M13: 20,853,794 km (0.061 R)
• M14: 25,448,243 km (0.12 R)
• M15: 27,357,411 km (0.097 R)
• M16: 29,793,613 km (0.096 R)
• M17: 30,121,681 km (0.117 R)
• M18: 31,684,530 km (0.082 R)
• M19: 42,073,204 km (0.092 R)
• M20: 45,020,432 km (0.075 R)
• M21: 51,635,650 km (0.093 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 17,144 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit