🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.6

Radius: 15

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.7 AU - 0.7 AU

Year: 378 Days

Day: 5.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,049,883 km

• M1: 191,186 km (0.108 R)
• M2: 889,359 km (0.11 R)
• M3: 1,357,601 km (0.097 R)
• M4: 1,847,534 km (0.072 R)
• M5: 2,642,796 km (0.073 R)
• M6: 3,877,876 km (0.107 R)
• M7: 4,965,453 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.8

Radius: 9.6

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.77 AU - 1.01 AU

Year: 542 Days

Day: 5.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,049,883 km

• M1: 119,379 km (0.106 R)
• M2: 447,597 km (0.058 R)
• M3: 875,596 km (0.034 R)
• M4: 1,186,012 km (0.072 R)
• M5: 1,494,782 km (0.105 R)
• M6: 1,914,703 km (0.098 R)
• M7: 2,776,387 km (0.101 R)
• M8: 3,200,497 km (0.058 R)
• M9: 3,527,667 km (0.108 R)
• M10: 4,956,477 km (0.075 R)
• M11: 6,041,510 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.6

Radius: 11.3

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.7 AU - 1.12 AU

Year: 561 Days

Day: 10.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,049,883 km

• M1: 140,622 km (0.087 R)
• M2: 524,341 km (0.083 R)
• M3: 1,003,203 km (0.098 R)
• M4: 1,841,101 km (0.113 R)
• M5: 2,259,676 km (0.102 R)
• M6: 2,878,113 km (0.089 R)
• M7: 3,656,621 km (0.104 R)
• M8: 4,497,361 km (0.099 R)
• M9: 4,855,648 km (0.1 R)
• M10: 5,749,794 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.3

Radius: 10.1

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.51 AU - 2.01 AU

Year: 1508 Days

Day: 8.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,049,883 km

• M1: 126,111 km (0.079 R)
• M2: 515,664 km (0.12 R)
• M3: 969,993 km (0.1 R)
• M4: 1,350,869 km (0.102 R)
• M5: 1,704,219 km (0.096 R)
• M6: 2,400,597 km (0.119 R)
• M7: 2,925,835 km (0.114 R)
• M8: 3,574,342 km (0.116 R)
• M9: 4,540,445 km (0.08 R)
• M10: 4,972,484 km (0.052 R)
• M11: 6,126,930 km (0.097 R)
• M12: 6,680,293 km (0.073 R)
• M13: 7,266,567 km (0.118 R)
• M14: 9,481,812 km (0.094 R)
• M15: 10,489,204 km (0.119 R)
• M16: 10,863,349 km (0.11 R)
• M17: 11,281,774 km (0.03 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.3

Radius: 7.4

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 5.44 AU - 7.58 AU

Year: 10725 Days

Day: 18.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,049,883 km

• M1: 92,003 km (0.092 R)
• M2: 429,047 km (0.085 R)
• M3: 797,057 km (0.117 R)
• M4: 1,928,017 km (0.092 R)
• M5: 2,584,902 km (0.039 R)
• M6: 3,946,841 km (0.11 R)
• M7: 4,795,509 km (0.093 R)
• M8: 5,236,225 km (0.068 R)
• M9: 10,799,769 km (0.087 R)
• M10: 12,733,920 km (0.089 R)
• M11: 13,226,397 km (0.097 R)
• M12: 15,105,196 km (0.082 R)
• M13: 17,755,622 km (0.066 R)
• M14: 18,557,466 km (0.115 R)
• M15: 23,004,562 km (0.079 R)
• M16: 24,405,397 km (0.117 R)
• M17: 25,165,204 km (0.059 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 284.5

Radius: 5.6

Gravity: 9.07 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.14 AU - 7.98 AU

Year: 12112 Days

Day: 18.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 80,049,883 km

• M1: 69,862 km (0.103 R)
• M2: 318,195 km (0.033 R)
• M3: 1,220,569 km (0.101 R)
• M4: 1,808,937 km (0.09 R)
• M5: 2,260,573 km (0.051 R)
• M6: 2,588,791 km (0.092 R)
• M7: 3,408,737 km (0.044 R)
• M8: 4,726,246 km (0.106 R)
• M9: 4,989,837 km (0.092 R)
• M10: 5,450,898 km (0.113 R)
• M11: 5,740,818 km (0.114 R)
• M12: 7,117,717 km (0.105 R)
• M13: 7,503,530 km (0.117 R)
• M14: 8,614,743 km (0.094 R)
• M15: 8,919,923 km (0.07 R)
• M16: 9,142,225 km (0.115 R)
• M17: 10,555,027 km (0.108 R)
• M18: 11,999,395 km (0.058 R)
• M19: 15,528,708 km (0.09 R)
• M20: 16,309,010 km (0.073 R)
• M21: 16,508,125 km (0.093 R)
• M22: 27,152,911 km (0.093 R)
• M23: 27,998,289 km (0.055 R)
• M24: 32,699,551 km (0.09 R)
• M25: 35,291,484 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930.3

Radius: 7.3

Gravity: 17.46 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 8.7 AU - 10.04 AU

Year: 18519 Days

Day: 20.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 80,049,883 km

• M1: 90,806 km (0.106 R)
• M2: 334,501 km (0.069 R)
• M3: 779,704 km (0.111 R)
• M4: 1,196,185 km (0.058 R)
• M5: 2,185,625 km (0.106 R)
• M6: 2,662,094 km (0.084 R)
• M7: 3,947,140 km (0.1 R)
• M8: 4,907,259 km (0.03 R)
• M9: 6,014,732 km (0.092 R)
• M10: 6,272,340 km (0.097 R)
• M11: 6,627,186 km (0.113 R)
• M12: 6,995,346 km (0.074 R)
• M13: 9,847,729 km (0.119 R)
• M14: 10,145,728 km (0.032 R)
• M15: 12,892,494 km (0.111 R)
• M16: 19,518,483 km (0.102 R)
• M17: 20,855,738 km (0.116 R)
• M18: 21,447,099 km (0.043 R)
• M19: 23,711,412 km (0.087 R)
• M20: 25,343,525 km (0.054 R)
• M21: 27,049,240 km (0.035 R)
• M22: 28,588,303 km (0.105 R)
• M23: 31,839,812 km (0.078 R)
• M24: 36,169,773 km (0.107 R)
• M25: 37,023,079 km (0.114 R)
• M26: 43,535,673 km (0.1 R)
• M27: 44,177,747 km (0.113 R)
• M28: 47,652,307 km (0.097 R)
• M29: 57,607,148 km (0.113 R)
• M30: 62,354,038 km (0.045 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 11,217 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit