🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.62 AU - 0.72 AU

Year: 360 Days

Day: 42.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 47.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.4

Radius: 10.9

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.81 AU - 0.95 AU

Year: 542 Days

Day: 8.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,823,475 km

• M1: 135,536 km (0.102 R)
• M2: 565,330 km (0.097 R)
• M3: 1,012,478 km (0.054 R)
• M4: 1,821,504 km (0.12 R)
• M5: 2,231,851 km (0.031 R)
• M6: 2,584,602 km (0.068 R)
• M7: 3,162,349 km (0.058 R)
• M8: 3,735,160 km (0.046 R)
• M9: 4,100,478 km (0.093 R)
• M10: 4,620,031 km (0.08 R)
• M11: 5,622,636 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.8

Radius: 10.9

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.76 AU - 4.08 AU

Year: 5091 Days

Day: 7.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,823,475 km

• M1: 136,433 km (0.088 R)
• M2: 552,914 km (0.098 R)
• M3: 1,644,978 km (0.046 R)
• M4: 3,312,396 km (0.086 R)
• M5: 4,766,787 km (0.113 R)
• M6: 5,108,169 km (0.064 R)
• M7: 5,810,830 km (0.119 R)
• M8: 6,544,907 km (0.077 R)
• M9: 7,832,346 km (0.112 R)
• M10: 8,536,055 km (0.038 R)
• M11: 9,121,132 km (0.075 R)
• M12: 10,546,201 km (0.09 R)
• M13: 11,827,058 km (0.099 R)
• M14: 13,209,043 km (0.058 R)
• M15: 14,750,799 km (0.061 R)
• M16: 15,651,079 km (0.099 R)
• M17: 16,887,804 km (0.099 R)
• M18: 19,223,626 km (0.051 R)
• M19: 20,988,731 km (0.053 R)
• M20: 22,785,551 km (0.103 R)
• M21: 24,682,601 km (0.115 R)
• M22: 25,870,109 km (0.116 R)
• M23: 26,682,725 km (0.085 R)
• M24: 28,018,185 km (0.09 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 626.8

Radius: 5.9

Gravity: 18.01 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.78 AU - 7.28 AU

Year: 10947 Days

Day: 17.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,823,475 km

• M1: 220,806 km (0.074 R)
• M2: 570,716 km (0.065 R)
• M3: 863,180 km (0.079 R)
• M4: 2,493,049 km (0.088 R)
• M5: 2,956,204 km (0.1 R)
• M6: 3,279,634 km (0.088 R)
• M7: 4,783,841 km (0.047 R)
• M8: 5,703,868 km (0.092 R)
• M9: 8,150,990 km (0.104 R)
• M10: 10,894,465 km (0.052 R)
• M11: 11,275,790 km (0.037 R)
• M12: 14,133,857 km (0.102 R)
• M13: 15,591,838 km (0.084 R)
• M14: 18,571,379 km (0.072 R)
• M15: 22,082,441 km (0.052 R)
• M16: 25,723,503 km (0.11 R)
• M17: 26,889,170 km (0.071 R)
• M18: 28,806,267 km (0.044 R)
• M19: 39,515,829 km (0.109 R)
• M20: 47,816,267 km (0.063 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 758.1

Radius: 6.6

Gravity: 17.4 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.65 AU - 7.69 AU

Year: 12595 Days

Day: 20.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,823,475 km

• M1: 84,822 km (0.116 R)
• M2: 318,643 km (0.071 R)
• M3: 572,212 km (0.057 R)
• M4: 910,602 km (0.118 R)
• M5: 1,168,808 km (0.044 R)
• M6: 1,390,811 km (0.088 R)
• M7: 1,904,082 km (0.097 R)
• M8: 3,151,429 km (0.093 R)
• M9: 5,308,780 km (0.099 R)
• M10: 5,521,059 km (0.085 R)
• M11: 5,925,272 km (0.113 R)
• M12: 7,518,490 km (0.079 R)
• M13: 8,437,470 km (0.108 R)
• M14: 9,688,856 km (0.112 R)
• M15: 10,114,162 km (0.107 R)
• M16: 13,059,745 km (0.039 R)
• M17: 14,520,119 km (0.033 R)
• M18: 14,866,588 km (0.114 R)
• M19: 17,604,528 km (0.092 R)
• M20: 17,840,294 km (0.111 R)
• M21: 20,314,792 km (0.053 R)
• M22: 21,365,717 km (0.054 R)
• M23: 22,360,394 km (0.112 R)
• M24: 28,659,062 km (0.073 R)
• M25: 30,996,080 km (0.105 R)
• M26: 31,802,563 km (0.051 R)
• M27: 36,045,457 km (0.107 R)
• M28: 37,065,715 km (0.086 R)
• M29: 37,843,325 km (0.105 R)
• M30: 38,897,092 km (0.109 R)
• M31: 40,241,528 km (0.067 R)
• M32: 42,881,033 km (0.095 R)
• M33: 56,790,344 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 19,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit