🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.49 AU - 0.57 AU

Year: 253 Days

Day: 19.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319

Radius: 11.2

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.77 AU - 1.09 AU

Year: 588 Days

Day: 8.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,840,087 km

• M1: 139,724 km (0.094 R)
• M2: 508,782 km (0.115 R)
• M3: 923,318 km (0.089 R)
• M4: 1,317,209 km (0.115 R)
• M5: 1,736,682 km (0.105 R)
• M6: 2,109,330 km (0.099 R)
• M7: 2,479,435 km (0.094 R)
• M8: 2,872,578 km (0.109 R)
• M9: 3,228,172 km (0.075 R)
• M10: 4,269,523 km (0.065 R)
• M11: 5,080,044 km (0.114 R)
• M12: 5,457,480 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.9

Radius: 9.4

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.98 AU - 2.06 AU

Year: 1883 Days

Day: 13.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,840,087 km

• M1: 116,986 km (0.053 R)
• M2: 732,132 km (0.072 R)
• M3: 1,092,812 km (0.102 R)
• M4: 1,415,046 km (0.073 R)
• M5: 2,130,872 km (0.106 R)
• M6: 2,748,711 km (0.113 R)
• M7: 3,218,897 km (0.092 R)
• M8: 3,545,320 km (0.066 R)
• M9: 4,602,827 km (0.11 R)
• M10: 6,181,234 km (0.081 R)
• M11: 6,638,854 km (0.098 R)
• M12: 7,196,854 km (0.078 R)
• M13: 8,262,739 km (0.036 R)
• M14: 8,878,484 km (0.058 R)
• M15: 9,778,914 km (0.048 R)
• M16: 10,334,371 km (0.107 R)
• M17: 12,276,300 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 13.1

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.32 AU - 2.88 AU

Year: 2750 Days

Day: 10.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,840,087 km

• M1: 163,062 km (0.064 R)
• M2: 676,033 km (0.114 R)
• M3: 1,587,682 km (0.076 R)
• M4: 2,174,704 km (0.104 R)
• M5: 3,106,400 km (0.116 R)
• M6: 3,851,696 km (0.116 R)
• M7: 4,486,291 km (0.105 R)
• M8: 5,019,457 km (0.119 R)
• M9: 5,594,661 km (0.109 R)
• M10: 6,047,793 km (0.11 R)
• M11: 7,620,964 km (0.103 R)
• M12: 8,145,754 km (0.08 R)
• M13: 9,752,136 km (0.091 R)
• M14: 10,975,846 km (0.054 R)
• M15: 13,022,794 km (0.077 R)
• M16: 15,364,599 km (0.05 R)
• M17: 16,689,587 km (0.119 R)
• M18: 17,240,407 km (0.11 R)
• M19: 21,571,863 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.8

Radius: 14.9

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.25 AU - 4.95 AU

Year: 5446 Days

Day: 14.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,840,087 km

• M1: 187,745 km (0.046 R)
• M2: 658,979 km (0.025 R)
• M3: 1,457,382 km (0.12 R)
• M4: 2,078,214 km (0.106 R)
• M5: 3,492,213 km (0.081 R)
• M6: 4,574,703 km (0.114 R)
• M7: 5,672,003 km (0.089 R)
• M8: 7,433,817 km (0.052 R)
• M9: 10,532,737 km (0.045 R)
• M10: 19,084,500 km (0.086 R)
• M11: 19,798,081 km (0.111 R)
• M12: 25,224,146 km (0.032 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507

Radius: 7.6

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.33 AU - 12.61 AU

Year: 22224 Days

Day: 16.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,840,087 km

• M1: 94,546 km (0.089 R)
• M2: 624,721 km (0.091 R)
• M3: 1,003,503 km (0.099 R)
• M4: 1,628,223 km (0.094 R)
• M5: 1,949,559 km (0.102 R)
• M6: 2,186,822 km (0.074 R)
• M7: 2,720,736 km (0.105 R)
• M8: 5,177,134 km (0.061 R)
• M9: 9,093,307 km (0.09 R)
• M10: 11,450,670 km (0.031 R)
• M11: 12,565,772 km (0.115 R)
• M12: 13,184,659 km (0.118 R)
• M13: 17,585,230 km (0.078 R)
• M14: 18,799,067 km (0.094 R)
• M15: 20,346,956 km (0.103 R)
• M16: 24,638,021 km (0.103 R)
• M17: 25,935,184 km (0.097 R)
• M18: 28,900,813 km (0.101 R)
• M19: 30,710,797 km (0.099 R)
• M20: 34,421,872 km (0.099 R)
• M21: 37,569,710 km (0.039 R)
• M22: 42,566,877 km (0.066 R)
• M23: 44,905,690 km (0.101 R)
• M24: 49,667,839 km (0.118 R)
• M25: 53,855,084 km (0.086 R)
• M26: 54,755,962 km (0.082 R)
• M27: 66,364,607 km (0.097 R)
• M28: 68,236,226 km (0.041 R)
• M29: 71,433,133 km (0.046 R)
• M30: 72,958,732 km (0.097 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: 253 - 19,892 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit