🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.5 AU - 0.8 AU

Year: 344 Days

Day: 17 Hours

Environment

Temp: -123 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,929,605 km

• M1: 170,990 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.1

Radius: 10.6

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.87 AU - 1.03 AU

Year: 607 Days

Day: 13 Hours

Environment

Temp: -148 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,929,605 km

• M1: 131,796 km (0.087 R)
• M2: 505,641 km (0.051 R)
• M3: 890,107 km (0.09 R)
• M4: 1,621,342 km (0.09 R)
• M5: 2,024,358 km (0.077 R)
• M6: 2,971,911 km (0.059 R)
• M7: 3,358,173 km (0.096 R)
• M8: 4,178,867 km (0.071 R)
• M9: 4,709,191 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.8

Radius: 14.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.93 AU - 1.15 AU

Year: 696 Days

Day: 9.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 49,929,605 km

• M1: 179,218 km (0.102 R)
• M2: 628,760 km (0.084 R)
• M3: 1,113,457 km (0.098 R)
• M4: 1,846,636 km (0.108 R)
• M5: 3,697,461 km (0.056 R)
• M6: 4,217,912 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.3

Radius: 8.3

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.9 AU - 2.28 AU

Year: 1982 Days

Day: 8.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,929,605 km

• M1: 103,223 km (0.097 R)
• M2: 374,892 km (0.104 R)
• M3: 808,726 km (0.098 R)
• M4: 1,123,330 km (0.032 R)
• M5: 1,642,435 km (0.049 R)
• M6: 2,121,597 km (0.067 R)
• M7: 3,621,166 km (0.07 R)
• M8: 4,630,503 km (0.082 R)
• M9: 5,542,003 km (0.089 R)
• M10: 6,076,217 km (0.12 R)
• M11: 6,368,232 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.5

Radius: 11.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.15 AU - 6.91 AU

Year: 8531 Days

Day: 8.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,929,605 km

• M1: 146,756 km (0.098 R)
• M2: 573,259 km (0.092 R)
• M3: 947,403 km (0.103 R)
• M4: 2,649,528 km (0.054 R)
• M5: 3,190,175 km (0.077 R)
• M6: 3,853,791 km (0.059 R)
• M7: 4,494,070 km (0.109 R)
• M8: 5,173,094 km (0.077 R)
• M9: 8,333,798 km (0.119 R)
• M10: 10,219,928 km (0.096 R)
• M11: 10,618,906 km (0.102 R)
• M12: 11,028,205 km (0.03 R)
• M13: 12,208,383 km (0.036 R)
• M14: 12,886,660 km (0.111 R)
• M15: 15,656,464 km (0.082 R)
• M16: 16,799,093 km (0.104 R)
• M17: 18,213,541 km (0.111 R)
• M18: 22,763,560 km (0.113 R)
• M19: 23,188,268 km (0.081 R)
• M20: 28,605,955 km (0.046 R)
• M21: 29,701,760 km (0.104 R)
• M22: 35,263,360 km (0.048 R)
• M23: 36,755,150 km (0.099 R)
• M24: 39,496,680 km (0.115 R)
• M25: 40,357,466 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.3

Radius: 7.6

Gravity: 12.9 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 6.98 AU - 7.28 AU

Year: 12489 Days

Day: 19.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,929,605 km

• M1: 100,380 km (0.092 R)
• M2: 355,594 km (0.059 R)
• M3: 873,801 km (0.106 R)
• M4: 1,121,086 km (0.03 R)
• M5: 1,388,268 km (0.05 R)
• M6: 2,053,979 km (0.1 R)
• M7: 2,418,100 km (0.082 R)
• M8: 4,233,620 km (0.086 R)
• M9: 4,825,429 km (0.084 R)
• M10: 6,020,866 km (0.045 R)
• M11: 6,687,474 km (0.1 R)
• M12: 7,533,450 km (0.117 R)
• M13: 10,609,930 km (0.088 R)
• M14: 10,946,076 km (0.071 R)
• M15: 11,347,298 km (0.056 R)
• M16: 11,997,450 km (0.099 R)
• M17: 12,547,671 km (0.102 R)
• M18: 17,493,975 km (0.05 R)
• M19: 22,027,389 km (0.12 R)
• M20: 23,038,072 km (0.101 R)
• M21: 24,368,745 km (0.115 R)
• M22: 39,660,340 km (0.092 R)
• M23: 42,124,068 km (0.107 R)
• M24: 55,648,014 km (0.088 R)
• M25: 57,175,409 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.7

Radius: 3.7

Gravity: 25.76 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.48 AU - 9.5 AU

Year: 14816 Days

Day: 22.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 49,929,605 km

• M1: 48,171 km (0.115 R)
• M2: 179,966 km (0.06 R)
• M3: 295,456 km (0.042 R)
• M4: 439,070 km (0.106 R)
• M5: 1,060,948 km (0.113 R)
• M6: 2,059,065 km (0.09 R)
• M7: 2,655,661 km (0.053 R)
• M8: 3,794,849 km (0.101 R)
• M9: 4,807,028 km (0.093 R)
• M10: 7,430,526 km (0.037 R)
• M11: 7,900,862 km (0.106 R)
• M12: 8,527,827 km (0.118 R)
• M13: 8,995,470 km (0.116 R)
• M14: 10,187,166 km (0.078 R)
• M15: 10,343,197 km (0.079 R)
• M16: 16,864,467 km (0.105 R)
• M17: 19,292,590 km (0.071 R)
• M18: 21,344,175 km (0.094 R)
• M19: 23,627,488 km (0.073 R)
• M20: 26,654,451 km (0.076 R)
• M21: 27,751,901 km (0.093 R)
• M22: 28,260,683 km (0.117 R)
• M23: 29,087,361 km (0.115 R)
• M24: 30,897,495 km (0.112 R)
• M25: 32,219,492 km (0.096 R)
• M26: 33,578,888 km (0.099 R)
• M27: 34,975,833 km (0.107 R)
• M28: 39,526,600 km (0.116 R)
• M29: 45,714,417 km (0.098 R)
• M30: 46,423,510 km (0.091 R)
• M31: 49,037,135 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: 217 - 16,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit