🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

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: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.42 AU - 0.66 AU

Year: 260 Days

Day: 35.2 Hours

Environment

Temp: -116 °C

Axial Tilt: 14.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,595,537 km

• M1: 203,154 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.6

Radius: 15

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.59 AU - 0.85 AU

Year: 401 Days

Day: 14.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,595,537 km

• M1: 186,549 km (0.111 R)
• M2: 775,815 km (0.081 R)
• M3: 1,275,023 km (0.112 R)
• M4: 1,861,297 km (0.12 R)
• M5: 2,526,110 km (0.119 R)
• M6: 3,246,423 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.2

Radius: 12.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.64 AU - 0.84 AU

Year: 418 Days

Day: 10.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,595,537 km

• M1: 160,369 km (0.032 R)
• M2: 662,868 km (0.055 R)
• M3: 1,117,646 km (0.108 R)
• M4: 1,667,867 km (0.116 R)
• M5: 2,370,079 km (0.095 R)
• M6: 3,207,378 km (0.1 R)
• M7: 3,762,087 km (0.085 R)
• M8: 4,462,504 km (0.04 R)
• M9: 4,932,242 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.6

Radius: 11.2

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.02 AU - 1.04 AU

Year: 686 Days

Day: 8 Hours

Environment

Temp: -150 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,595,537 km

• M1: 139,276 km (0.067 R)
• M2: 567,425 km (0.118 R)
• M3: 1,174,343 km (0.115 R)
• M4: 1,880,744 km (0.066 R)
• M5: 2,371,725 km (0.118 R)
• M6: 2,990,162 km (0.064 R)
• M7: 3,540,533 km (0.079 R)
• M8: 3,944,297 km (0.096 R)
• M9: 4,477,913 km (0.104 R)
• M10: 5,043,842 km (0.096 R)
• M11: 5,792,130 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.8

Radius: 10.2

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.9 AU - 1.36 AU

Year: 788 Days

Day: 9.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,595,537 km

• M1: 126,859 km (0.105 R)
• M2: 450,888 km (0.089 R)
• M3: 864,227 km (0.107 R)
• M4: 1,250,339 km (0.068 R)
• M5: 1,643,333 km (0.034 R)
• M6: 2,003,564 km (0.094 R)
• M7: 2,416,604 km (0.106 R)
• M8: 3,429,830 km (0.107 R)
• M9: 3,873,687 km (0.119 R)
• M10: 4,355,841 km (0.115 R)
• M11: 5,309,827 km (0.075 R)
• M12: 6,086,988 km (0.049 R)
• M13: 6,545,804 km (0.095 R)
• M14: 7,323,265 km (0.067 R)
• M15: 7,746,477 km (0.079 R)
• M16: 8,260,794 km (0.107 R)
• M17: 8,641,970 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 9.1

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.05 AU - 1.55 AU

Year: 972 Days

Day: 6.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,595,537 km

• M1: 113,395 km (0.065 R)
• M2: 519,404 km (0.11 R)
• M3: 977,173 km (0.096 R)
• M4: 1,498,223 km (0.114 R)
• M5: 1,902,137 km (0.101 R)
• M6: 2,644,292 km (0.096 R)
• M7: 3,153,673 km (0.112 R)
• M8: 3,808,762 km (0.069 R)
• M9: 4,147,152 km (0.118 R)
• M10: 4,490,180 km (0.118 R)
• M11: 6,718,440 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.8

Radius: 10.8

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.8 AU - 2.92 AU

Year: 2378 Days

Day: 6 Hours

Environment

Temp: -186 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,595,537 km

• M1: 134,339 km (0.036 R)
• M2: 490,382 km (0.106 R)
• M3: 1,443,470 km (0.111 R)
• M4: 2,030,641 km (0.104 R)
• M5: 2,460,885 km (0.093 R)
• M6: 2,830,541 km (0.114 R)
• M7: 3,237,597 km (0.117 R)
• M8: 3,719,452 km (0.092 R)
• M9: 4,429,443 km (0.112 R)
• M10: 5,745,905 km (0.115 R)
• M11: 6,169,715 km (0.109 R)
• M12: 7,052,343 km (0.11 R)
• M13: 7,626,948 km (0.059 R)
• M14: 8,108,803 km (0.063 R)
• M15: 9,887,222 km (0.096 R)
• M16: 12,561,883 km (0.045 R)
• M17: 12,979,859 km (0.076 R)
• M18: 13,320,793 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.8

Radius: 5.7

Gravity: 30.1 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.2 AU - 8.64 AU

Year: 14622 Days

Day: 20.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,595,537 km

• M1: 78,090 km (0.11 R)
• M2: 350,059 km (0.06 R)
• M3: 601,832 km (0.072 R)
• M4: 800,349 km (0.031 R)
• M5: 1,092,364 km (0.118 R)
• M6: 1,611,917 km (0.061 R)
• M7: 1,946,119 km (0.119 R)
• M8: 2,262,518 km (0.086 R)
• M9: 2,499,481 km (0.06 R)
• M10: 2,682,140 km (0.1 R)
• M11: 2,998,091 km (0.084 R)
• M12: 5,143,624 km (0.118 R)
• M13: 6,570,338 km (0.109 R)
• M14: 6,875,668 km (0.1 R)
• M15: 7,704,290 km (0.073 R)
• M16: 8,192,428 km (0.068 R)
• M17: 9,284,193 km (0.096 R)
• M18: 11,068,597 km (0.057 R)
• M19: 11,563,616 km (0.079 R)
• M20: 12,203,147 km (0.056 R)
• M21: 12,399,569 km (0.104 R)
• M22: 14,047,539 km (0.084 R)
• M23: 14,701,432 km (0.075 R)
• M24: 17,109,359 km (0.115 R)
• M25: 18,708,411 km (0.101 R)
• M26: 21,909,955 km (0.072 R)
• M27: 29,725,546 km (0.077 R)
• M28: 32,652,428 km (0.078 R)
• M29: 42,126,012 km (0.057 R)
• M30: 47,403,077 km (0.075 R)
• M31: 48,051,434 km (0.025 R)
• M32: 57,209,218 km (0.086 R)
• M33: 58,128,796 km (0.104 R)
• M34: 63,657,484 km (0.032 R)
• M35: 64,248,695 km (0.069 R)
• M36: 64,843,646 km (0.102 R)
• M37: 68,078,251 km (0.025 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.5

Radius: 6

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 9.33 AU - 10.41 AU

Year: 20342 Days

Day: 16.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,595,537 km

• M1: 74,649 km (0.116 R)
• M2: 261,647 km (0.111 R)
• M3: 636,389 km (0.075 R)
• M4: 846,275 km (0.111 R)
• M5: 1,045,240 km (0.115 R)
• M6: 1,525,599 km (0.063 R)
• M7: 1,742,217 km (0.03 R)
• M8: 2,477,191 km (0.067 R)
• M9: 3,376,125 km (0.082 R)
• M10: 5,055,361 km (0.094 R)
• M11: 6,093,869 km (0.091 R)
• M12: 8,925,308 km (0.067 R)
• M13: 10,486,960 km (0.111 R)
• M14: 11,159,702 km (0.088 R)
• M15: 13,350,563 km (0.094 R)
• M16: 14,073,270 km (0.07 R)
• M17: 15,311,940 km (0.071 R)
• M18: 18,561,655 km (0.057 R)
• M19: 19,213,154 km (0.108 R)
• M20: 20,561,629 km (0.092 R)
• M21: 24,690,530 km (0.116 R)
• M22: 32,275,890 km (0.068 R)
• M23: 40,324,405 km (0.06 R)
• M24: 43,231,241 km (0.115 R)
• M25: 51,500,413 km (0.076 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: 369 - 16,504 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit