🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.51 AU - 0.57 AU

Year: 260 Days

Day: 26.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.9

Radius: 12

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.62 AU - 1 AU

Year: 478 Days

Day: 5.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,195,981 km

• M1: 149,299 km (0.039 R)
• M2: 593,006 km (0.03 R)
• M3: 1,004,400 km (0.111 R)
• M4: 1,400,086 km (0.055 R)
• M5: 1,977,833 km (0.104 R)
• M6: 2,505,016 km (0.088 R)
• M7: 2,927,780 km (0.118 R)
• M8: 3,881,915 km (0.115 R)
• M9: 4,344,322 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.3

Radius: 9.6

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.09 AU - 2.55 AU

Year: 2318 Days

Day: 5.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,195,981 km

• M1: 120,576 km (0.072 R)
• M2: 520,152 km (0.056 R)
• M3: 880,383 km (0.079 R)
• M4: 1,259,614 km (0.108 R)
• M5: 1,989,053 km (0.107 R)
• M6: 2,963,683 km (0.09 R)
• M7: 5,412,451 km (0.116 R)
• M8: 6,115,411 km (0.112 R)
• M9: 6,927,728 km (0.044 R)
• M10: 8,083,521 km (0.107 R)
• M11: 8,853,651 km (0.06 R)
• M12: 10,083,644 km (0.042 R)
• M13: 10,506,857 km (0.104 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.4

Radius: 7.4

Gravity: 14.85 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.68 AU - 6.42 AU

Year: 9762 Days

Day: 23.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,195,981 km

• M1: 187,147 km (0.116 R)
• M2: 444,904 km (0.117 R)
• M3: 1,258,417 km (0.104 R)
• M4: 1,492,688 km (0.113 R)
• M5: 2,051,585 km (0.084 R)
• M6: 2,536,432 km (0.043 R)
• M7: 3,812,352 km (0.118 R)
• M8: 6,286,851 km (0.092 R)
• M9: 7,347,948 km (0.041 R)
• M10: 8,847,816 km (0.073 R)
• M11: 11,353,282 km (0.06 R)
• M12: 14,820,362 km (0.095 R)
• M13: 15,562,367 km (0.112 R)
• M14: 16,974,272 km (0.087 R)
• M15: 18,316,314 km (0.111 R)
• M16: 20,624,909 km (0.117 R)
• M17: 24,302,324 km (0.077 R)
• M18: 29,327,316 km (0.098 R)
• M19: 32,584,959 km (0.071 R)
• M20: 39,424,275 km (0.06 R)
• M21: 42,838,697 km (0.062 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 146.2

Radius: 6.6

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.23 AU - 7.25 AU

Year: 12780 Days

Day: 19.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,195,981 km

• M1: 90,507 km (0.059 R)
• M2: 367,712 km (0.094 R)
• M3: 607,816 km (0.039 R)
• M4: 1,324,689 km (0.07 R)
• M5: 1,562,251 km (0.119 R)
• M6: 1,899,594 km (0.046 R)
• M7: 2,683,636 km (0.083 R)
• M8: 3,087,700 km (0.042 R)
• M9: 3,378,967 km (0.101 R)
• M10: 3,688,635 km (0.098 R)
• M11: 5,235,177 km (0.078 R)
• M12: 6,183,778 km (0.11 R)
• M13: 8,102,221 km (0.12 R)
• M14: 9,538,510 km (0.098 R)
• M15: 10,898,354 km (0.089 R)
• M16: 13,608,320 km (0.088 R)
• M17: 15,867,996 km (0.111 R)
• M18: 17,054,606 km (0.119 R)
• M19: 17,767,889 km (0.064 R)
• M20: 19,532,994 km (0.107 R)
• M21: 23,092,975 km (0.074 R)
• M22: 27,324,949 km (0.077 R)
• M23: 31,080,902 km (0.086 R)
• M24: 31,464,771 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.8

Radius: 3

Gravity: 9.42 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 6.37 AU - 10.27 AU

Year: 15743 Days

Day: 17.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,195,981 km

• M1: 37,250 km (0.096 R)
• M2: 172,038 km (0.116 R)
• M3: 425,157 km (0.099 R)
• M4: 535,860 km (0.084 R)
• M5: 731,085 km (0.072 R)
• M6: 1,056,311 km (0.068 R)
• M7: 2,446,823 km (0.05 R)
• M8: 2,658,803 km (0.119 R)
• M9: 3,221,740 km (0.114 R)
• M10: 3,476,355 km (0.044 R)
• M11: 3,744,136 km (0.053 R)
• M12: 4,982,207 km (0.078 R)
• M13: 7,659,261 km (0.104 R)
• M14: 10,831,185 km (0.068 R)
• M15: 10,971,657 km (0.093 R)
• M16: 13,282,645 km (0.052 R)
• M17: 13,551,922 km (0.048 R)
• M18: 13,990,094 km (0.086 R)
• M19: 15,777,938 km (0.079 R)
• M20: 17,518,509 km (0.109 R)
• M21: 21,893,798 km (0.044 R)
• M22: 23,343,701 km (0.046 R)
• M23: 29,056,095 km (0.098 R)
• M24: 29,692,185 km (0.085 R)
• M25: 31,656,106 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.3

Radius: 3

Gravity: 34.26 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 9.27 AU - 10.21 AU

Year: 19941 Days

Day: 22.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,195,981 km

• M1: 46,525 km (0.114 R)
• M2: 233,522 km (0.113 R)
• M3: 411,544 km (0.093 R)
• M4: 568,322 km (0.106 R)
• M5: 1,607,579 km (0.032 R)
• M6: 2,089,583 km (0.102 R)
• M7: 2,263,266 km (0.102 R)
• M8: 2,530,897 km (0.12 R)
• M9: 2,728,216 km (0.033 R)
• M10: 5,624,730 km (0.079 R)
• M11: 11,621,211 km (0.041 R)
• M12: 13,044,486 km (0.098 R)
• M13: 15,498,639 km (0.111 R)
• M14: 20,071,397 km (0.097 R)
• M15: 23,509,156 km (0.077 R)
• M16: 28,711,871 km (0.079 R)
• M17: 29,814,556 km (0.059 R)
• M18: 34,508,190 km (0.08 R)
• M19: 42,718,270 km (0.083 R)
• M20: 43,002,806 km (0.096 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: 506 - 11,025 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit