🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.6

Radius: 11.8

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.73 AU - 0.79 AU

Year: 457 Days

Day: 5.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 27,172,368 km

• M1: 146,756 km (0.106 R)
• M2: 616,642 km (0.1 R)
• M3: 1,095,804 km (0.096 R)
• M4: 1,490,294 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.9

Radius: 13.8

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.67 AU - 0.97 AU

Year: 513 Days

Day: 5.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,172,368 km

• M1: 173,085 km (0.082 R)
• M2: 738,714 km (0.076 R)
• M3: 1,208,302 km (0.07 R)
• M4: 1,957,937 km (0.107 R)
• M5: 2,474,648 km (0.108 R)
• M6: 3,093,834 km (0.026 R)
• M7: 3,923,204 km (0.119 R)
• M8: 4,450,237 km (0.055 R)
• M9: 6,061,257 km (0.097 R)
• M10: 6,670,120 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.8

Radius: 14.9

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.74 AU - 1.14 AU

Year: 629 Days

Day: 10.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,172,368 km

• M1: 185,352 km (0.072 R)
• M2: 721,361 km (0.094 R)
• M3: 1,423,723 km (0.108 R)
• M4: 1,994,588 km (0.111 R)
• M5: 2,462,381 km (0.107 R)
• M6: 3,016,491 km (0.119 R)
• M7: 3,506,275 km (0.105 R)
• M8: 4,568,869 km (0.062 R)
• M9: 5,450,000 km (0.081 R)
• M10: 6,584,101 km (0.038 R)
• M11: 7,262,378 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.4

Radius: 14.3

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.88 AU - 1.44 AU

Year: 862 Days

Day: 12.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,172,368 km

• M1: 177,872 km (0.074 R)
• M2: 690,394 km (0.075 R)
• M3: 1,235,678 km (0.064 R)
• M4: 1,999,226 km (0.095 R)
• M5: 2,933,016 km (0.093 R)
• M6: 3,837,185 km (0.118 R)
• M7: 5,137,640 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.4

Radius: 10.5

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.09 AU - 1.81 AU

Year: 1205 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,172,368 km

• M1: 130,599 km (0.034 R)
• M2: 589,565 km (0.063 R)
• M3: 1,175,390 km (0.099 R)
• M4: 1,510,938 km (0.036 R)
• M5: 1,901,539 km (0.111 R)
• M6: 2,491,403 km (0.102 R)
• M7: 2,850,139 km (0.095 R)
• M8: 3,214,110 km (0.114 R)
• M9: 3,704,941 km (0.049 R)
• M10: 4,461,158 km (0.059 R)
• M11: 4,934,935 km (0.044 R)
• M12: 5,317,307 km (0.079 R)
• M13: 7,251,009 km (0.074 R)
• M14: 8,153,383 km (0.061 R)
• M15: 9,706,957 km (0.112 R)
• M16: 10,669,320 km (0.093 R)
• M17: 11,003,821 km (0.057 R)
• M18: 11,588,749 km (0.035 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.1

Radius: 14.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.71 AU - 2.79 AU

Year: 2330 Days

Day: 13.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,172,368 km

• M1: 178,769 km (0.114 R)
• M2: 660,175 km (0.078 R)
• M3: 1,533,677 km (0.097 R)
• M4: 2,037,673 km (0.084 R)
• M5: 2,678,699 km (0.079 R)
• M6: 3,391,533 km (0.108 R)
• M7: 3,884,758 km (0.072 R)
• M8: 4,763,196 km (0.09 R)
• M9: 5,704,915 km (0.111 R)
• M10: 6,525,908 km (0.058 R)
• M11: 7,065,507 km (0.091 R)
• M12: 7,529,261 km (0.108 R)
• M13: 9,810,479 km (0.074 R)
• M14: 10,653,164 km (0.027 R)
• M15: 11,126,790 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.8

Radius: 12.6

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.54 AU - 2.94 AU

Year: 3131 Days

Day: 6.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,172,368 km

• M1: 156,629 km (0.08 R)
• M2: 670,049 km (0.104 R)
• M3: 1,321,996 km (0.039 R)
• M4: 1,721,572 km (0.037 R)
• M5: 2,231,103 km (0.08 R)
• M6: 2,890,829 km (0.12 R)
• M7: 3,859,176 km (0.109 R)
• M8: 4,285,231 km (0.093 R)
• M9: 4,742,701 km (0.106 R)
• M10: 5,412,152 km (0.029 R)
• M11: 5,948,011 km (0.111 R)
• M12: 7,064,311 km (0.068 R)
• M13: 8,993,974 km (0.055 R)
• M14: 9,825,439 km (0.057 R)
• M15: 10,461,828 km (0.114 R)
• M16: 10,915,259 km (0.101 R)
• M17: 12,218,855 km (0.085 R)
• M18: 13,238,963 km (0.109 R)
• M19: 13,721,117 km (0.075 R)
• M20: 14,874,516 km (0.059 R)
• M21: 17,203,007 km (0.119 R)
• M22: 18,603,393 km (0.11 R)
• M23: 19,147,630 km (0.051 R)
• M24: 19,952,616 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.7

Radius: 6.9

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.29 AU - 7.87 AU

Year: 11651 Days

Day: 22.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 27,172,368 km

• M1: 86,019 km (0.06 R)
• M2: 377,136 km (0.066 R)
• M3: 1,040,603 km (0.042 R)
• M4: 2,044,554 km (0.085 R)
• M5: 2,399,849 km (0.084 R)
• M6: 2,969,967 km (0.077 R)
• M7: 3,213,661 km (0.102 R)
• M8: 4,801,493 km (0.1 R)
• M9: 6,852,330 km (0.09 R)
• M10: 7,724,486 km (0.091 R)
• M11: 8,031,012 km (0.093 R)
• M12: 10,830,886 km (0.109 R)
• M13: 11,069,943 km (0.111 R)
• M14: 12,113,089 km (0.103 R)
• M15: 12,950,688 km (0.12 R)
• M16: 14,221,522 km (0.115 R)
• M17: 16,816,895 km (0.115 R)
• M18: 17,858,246 km (0.118 R)
• M19: 19,219,586 km (0.093 R)
• M20: 20,942,804 km (0.098 R)
• M21: 21,165,107 km (0.067 R)
• M22: 21,464,153 km (0.118 R)
• M23: 24,941,705 km (0.08 R)
• M24: 26,466,556 km (0.059 R)
• M25: 27,251,795 km (0.036 R)
• M26: 27,873,225 km (0.113 R)
• M27: 30,548,633 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.1

Radius: 3

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.31 AU - 7.89 AU

Year: 11704 Days

Day: 15.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,172,368 km

• M1: 38,447 km (0.082 R)
• M2: 214,823 km (0.068 R)
• M3: 326,273 km (0.091 R)
• M4: 446,250 km (0.104 R)
• M5: 853,605 km (0.08 R)
• M6: 1,094,458 km (0.058 R)
• M7: 1,709,604 km (0.112 R)
• M8: 1,948,811 km (0.034 R)
• M9: 20,961,055 km (0.086 R)
• M10: 22,864,239 km (0.086 R)
• M11: 23,082,503 km (0.108 R)
• M12: 23,523,368 km (0.101 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 17,682 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit