🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.92 AU - 3.48 AU

Year: 2157 Days

Day: 41.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 49.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.1

Radius: 10.7

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.77 AU - 5.85 AU

Year: 3974 Days

Day: 10.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,530,565 km

• M1: 134,040 km (0.114 R)
• M2: 548,725 km (0.096 R)
• M3: 1,044,792 km (0.061 R)
• M4: 1,397,244 km (0.087 R)
• M5: 1,894,208 km (0.092 R)
• M6: 2,817,676 km (0.094 R)
• M7: 3,478,450 km (0.085 R)
• M8: 4,239,604 km (0.098 R)
• M9: 4,806,430 km (0.064 R)
• M10: 7,131,929 km (0.102 R)
• M11: 8,004,533 km (0.066 R)
• M12: 10,329,733 km (0.088 R)
• M13: 10,878,009 km (0.105 R)
• M14: 12,125,207 km (0.075 R)
• M15: 13,268,134 km (0.036 R)
• M16: 14,325,941 km (0.084 R)
• M17: 15,988,721 km (0.051 R)
• M18: 18,198,282 km (0.11 R)
• M19: 18,688,065 km (0.097 R)
• M20: 19,439,346 km (0.114 R)
• M21: 20,275,897 km (0.098 R)
• M22: 21,814,362 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.7

Radius: 8

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.03 AU - 5.91 AU

Year: 4174 Days

Day: 10.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,530,565 km

• M1: 100,231 km (0.119 R)
• M2: 1,315,115 km (0.096 R)
• M3: 2,351,379 km (0.041 R)
• M4: 5,564,742 km (0.09 R)
• M5: 7,114,276 km (0.116 R)
• M6: 8,347,860 km (0.096 R)
• M7: 9,336,553 km (0.077 R)
• M8: 9,753,332 km (0.095 R)
• M9: 10,328,087 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82

Radius: 11.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.93 AU - 6.43 AU

Year: 4441 Days

Day: 9.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,530,565 km

• M1: 139,126 km (0.075 R)
• M2: 1,055,862 km (0.083 R)
• M3: 1,839,755 km (0.101 R)
• M4: 2,258,030 km (0.112 R)
• M5: 5,521,508 km (0.104 R)
• M6: 6,499,579 km (0.109 R)
• M7: 7,186,981 km (0.11 R)
• M8: 10,704,326 km (0.097 R)
• M9: 11,265,767 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697

Radius: 13.3

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.9 AU - 8.1 AU

Year: 6243 Days

Day: 8.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,530,565 km

• M1: 165,455 km (0.056 R)
• M2: 586,274 km (0.113 R)
• M3: 1,303,147 km (0.099 R)
• M4: 2,073,576 km (0.119 R)
• M5: 3,151,130 km (0.075 R)
• M6: 4,289,121 km (0.114 R)
• M7: 4,706,349 km (0.083 R)
• M8: 5,442,969 km (0.099 R)
• M9: 8,722,753 km (0.119 R)
• M10: 13,744,903 km (0.069 R)
• M11: 14,426,620 km (0.061 R)
• M12: 19,990,614 km (0.085 R)
• M13: 22,150,209 km (0.105 R)
• M14: 22,850,925 km (0.055 R)
• M15: 24,958,610 km (0.119 R)
• M16: 29,371,148 km (0.113 R)
• M17: 32,155,464 km (0.097 R)
• M18: 33,560,786 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.2

Radius: 9.8

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.62 AU - 7.9 AU

Year: 6621 Days

Day: 14.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,530,565 km

• M1: 126,410 km (0.079 R)
• M2: 558,748 km (0.091 R)
• M3: 1,081,892 km (0.109 R)
• M4: 1,911,562 km (0.092 R)
• M5: 2,312,633 km (0.107 R)
• M6: 2,752,750 km (0.098 R)
• M7: 3,304,617 km (0.092 R)
• M8: 3,637,622 km (0.084 R)
• M9: 4,922,368 km (0.088 R)
• M10: 5,227,698 km (0.073 R)
• M11: 5,654,351 km (0.067 R)
• M12: 6,338,163 km (0.116 R)
• M13: 7,565,464 km (0.1 R)
• M14: 8,077,537 km (0.104 R)
• M15: 9,208,946 km (0.112 R)
• M16: 10,567,893 km (0.089 R)
• M17: 12,286,024 km (0.108 R)
• M18: 14,132,062 km (0.116 R)
• M19: 15,335,278 km (0.117 R)
• M20: 15,879,216 km (0.08 R)
• M21: 16,605,513 km (0.103 R)
• M22: 18,426,867 km (0.079 R)
• M23: 19,417,205 km (0.102 R)
• M24: 21,101,677 km (0.048 R)
• M25: 21,842,785 km (0.059 R)
• M26: 22,185,364 km (0.037 R)
• M27: 23,591,883 km (0.067 R)
• M28: 24,833,247 km (0.039 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.4

Radius: 4.9

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 9.38 AU - 14.64 AU

Year: 15680 Days

Day: 20.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,530,565 km

• M1: 61,186 km (0.108 R)
• M2: 449,691 km (0.092 R)
• M3: 3,308,806 km (0.086 R)
• M4: 3,671,132 km (0.106 R)
• M5: 9,666,416 km (0.071 R)
• M6: 10,354,566 km (0.099 R)
• M7: 13,138,583 km (0.098 R)
• M8: 13,982,015 km (0.071 R)
• M9: 14,291,833 km (0.092 R)
• M10: 29,344,370 km (0.056 R)
• M11: 39,159,487 km (0.041 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 554 - 18,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit