🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.6

Radius: 9.2

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.51 AU - 0.71 AU

Year: 323 Days

Day: 9.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,786,048 km

• M1: 114,442 km (0.078 R)
• M2: 569,669 km (0.115 R)
• M3: 934,687 km (0.103 R)
• M4: 1,386,323 km (0.106 R)
• M5: 1,815,071 km (0.081 R)
• M6: 2,322,208 km (0.075 R)
• M7: 2,751,105 km (0.111 R)
• M8: 3,826,115 km (0.065 R)
• M9: 4,248,879 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.7

Radius: 8.8

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.62 AU - 0.84 AU

Year: 423 Days

Day: 11.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,786,048 km

• M1: 109,506 km (0.109 R)
• M2: 411,544 km (0.086 R)
• M3: 763,548 km (0.106 R)
• M4: 1,117,197 km (0.057 R)
• M5: 1,548,787 km (0.091 R)
• M6: 1,934,151 km (0.05 R)
• M7: 2,441,288 km (0.109 R)
• M8: 2,842,509 km (0.098 R)
• M9: 3,687,288 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.2

Radius: 9.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.01 AU - 1.33 AU

Year: 858 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,786,048 km

• M1: 118,182 km (0.083 R)
• M2: 451,786 km (0.053 R)
• M3: 813,214 km (0.029 R)
• M4: 1,220,868 km (0.108 R)
• M5: 1,550,432 km (0.077 R)
• M6: 2,119,503 km (0.099 R)
• M7: 2,469,562 km (0.099 R)
• M8: 2,810,495 km (0.106 R)
• M9: 3,773,905 km (0.107 R)
• M10: 4,404,161 km (0.039 R)
• M11: 4,787,581 km (0.109 R)
• M12: 5,737,078 km (0.103 R)
• M13: 6,677,451 km (0.118 R)
• M14: 7,162,148 km (0.044 R)
• M15: 7,552,449 km (0.106 R)
• M16: 8,177,020 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.2

Radius: 12.2

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.42 AU - 1.42 AU

Year: 1148 Days

Day: 8.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,786,048 km

• M1: 151,692 km (0.115 R)
• M2: 652,097 km (0.094 R)
• M3: 1,034,020 km (0.06 R)
• M4: 1,666,819 km (0.075 R)
• M5: 3,575,539 km (0.096 R)
• M6: 4,078,936 km (0.115 R)
• M7: 4,629,456 km (0.082 R)
• M8: 5,070,171 km (0.113 R)
• M9: 7,480,492 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.8

Radius: 11.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.9 AU - 4.72 AU

Year: 5044 Days

Day: 11.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,786,048 km

• M1: 144,212 km (0.108 R)
• M2: 513,121 km (0.049 R)
• M3: 1,048,831 km (0.073 R)
• M4: 1,701,227 km (0.064 R)
• M5: 2,097,063 km (0.093 R)
• M6: 3,032,798 km (0.11 R)
• M7: 4,056,197 km (0.032 R)
• M8: 4,424,507 km (0.105 R)
• M9: 5,030,079 km (0.098 R)
• M10: 5,549,183 km (0.074 R)
• M11: 11,228,816 km (0.076 R)
• M12: 11,686,885 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.8

Radius: 14.7

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.42 AU - 5.94 AU

Year: 7996 Days

Day: 5.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,786,048 km

• M1: 184,155 km (0.114 R)
• M2: 910,901 km (0.088 R)
• M3: 1,548,787 km (0.034 R)
• M4: 2,394,164 km (0.117 R)
• M5: 3,830,753 km (0.072 R)
• M6: 4,377,084 km (0.101 R)
• M7: 5,294,867 km (0.084 R)
• M8: 5,911,360 km (0.104 R)
• M9: 6,404,883 km (0.091 R)
• M10: 7,106,048 km (0.089 R)
• M11: 7,588,801 km (0.049 R)
• M12: 9,744,506 km (0.086 R)
• M13: 10,248,501 km (0.112 R)
• M14: 11,712,167 km (0.074 R)
• M15: 13,200,516 km (0.108 R)
• M16: 14,397,000 km (0.062 R)
• M17: 17,469,142 km (0.093 R)
• M18: 21,030,469 km (0.086 R)
• M19: 24,795,548 km (0.083 R)
• M20: 26,349,720 km (0.095 R)
• M21: 26,971,299 km (0.066 R)
• M22: 30,712,742 km (0.112 R)
• M23: 35,535,927 km (0.111 R)
• M24: 36,294,987 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.2

Radius: 7.7

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.6 AU - 6.7 AU

Year: 10344 Days

Day: 15.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 25,786,048 km

• M1: 98,435 km (0.074 R)
• M2: 571,913 km (0.095 R)
• M3: 1,103,135 km (0.097 R)
• M4: 1,564,943 km (0.117 R)
• M5: 3,326,009 km (0.106 R)
• M6: 4,039,591 km (0.088 R)
• M7: 4,432,735 km (0.119 R)
• M8: 5,328,676 km (0.109 R)
• M9: 5,595,708 km (0.037 R)
• M10: 6,678,498 km (0.069 R)
• M11: 8,875,791 km (0.11 R)
• M12: 9,157,035 km (0.118 R)
• M13: 9,886,175 km (0.075 R)
• M14: 10,811,438 km (0.095 R)
• M15: 11,459,646 km (0.103 R)
• M16: 13,132,748 km (0.1 R)
• M17: 15,361,457 km (0.067 R)
• M18: 15,699,100 km (0.091 R)
• M19: 16,041,828 km (0.047 R)
• M20: 17,682,768 km (0.115 R)
• M21: 19,669,128 km (0.103 R)
• M22: 20,390,040 km (0.054 R)
• M23: 26,707,259 km (0.05 R)
• M24: 27,690,416 km (0.1 R)
• M25: 29,209,882 km (0.114 R)
• M26: 30,359,093 km (0.101 R)
• M27: 31,105,736 km (0.106 R)
• M28: 39,134,354 km (0.043 R)
• M29: 42,618,788 km (0.075 R)
• M30: 48,008,799 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 65.6

Radius: 7.7

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 6.03 AU - 8.11 AU

Year: 12750 Days

Day: 21.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,786,048 km

• M1: 95,892 km (0.041 R)
• M2: 497,114 km (0.029 R)
• M3: 755,320 km (0.103 R)
• M4: 1,178,382 km (0.094 R)
• M5: 5,239,067 km (0.102 R)
• M6: 9,885,726 km (0.053 R)
• M7: 10,761,323 km (0.1 R)
• M8: 11,417,758 km (0.096 R)
• M9: 15,052,239 km (0.047 R)
• M10: 15,761,632 km (0.038 R)
• M11: 16,896,481 km (0.112 R)
• M12: 18,886,432 km (0.077 R)
• M13: 20,035,344 km (0.083 R)
• M14: 23,833,783 km (0.091 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 18,147 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit