🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.1

Radius: 13.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.56 AU - 0.88 AU

Year: 394 Days

Day: 10.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,077,954 km

• M1: 171,738 km (0.082 R)
• M2: 649,704 km (0.109 R)
• M3: 1,391,859 km (0.063 R)
• M4: 1,842,747 km (0.091 R)
• M5: 2,340,010 km (0.087 R)
• M6: 2,776,387 km (0.079 R)
• M7: 3,334,537 km (0.089 R)
• M8: 3,879,372 km (0.062 R)
• M9: 4,387,406 km (0.087 R)
• M10: 5,043,842 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.5

Radius: 14.5

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.81 AU - 0.87 AU

Year: 497 Days

Day: 14.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 42,077,954 km

• M1: 181,163 km (0.112 R)
• M2: 652,097 km (0.087 R)
• M3: 1,796,371 km (0.113 R)
• M4: 2,771,749 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.1

Radius: 11.9

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.12 AU - 1.82 AU

Year: 1151 Days

Day: 11.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 114.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,077,954 km

• M1: 148,102 km (0.034 R)
• M2: 576,700 km (0.085 R)
• M3: 966,552 km (0.108 R)
• M4: 1,525,300 km (0.095 R)
• M5: 1,986,061 km (0.048 R)
• M6: 2,470,758 km (0.109 R)
• M7: 3,533,053 km (0.1 R)
• M8: 4,402,067 km (0.117 R)
• M9: 4,878,237 km (0.117 R)
• M10: 6,857,118 km (0.046 R)
• M11: 9,181,420 km (0.054 R)
• M12: 9,696,934 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.4

Radius: 9.1

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.56 AU - 2.14 AU

Year: 1625 Days

Day: 9 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,077,954 km

• M1: 113,694 km (0.047 R)
• M2: 602,281 km (0.044 R)
• M3: 1,048,831 km (0.115 R)
• M4: 1,541,905 km (0.08 R)
• M5: 2,207,466 km (0.118 R)
• M6: 2,830,841 km (0.106 R)
• M7: 3,483,087 km (0.099 R)
• M8: 4,063,078 km (0.089 R)
• M9: 5,127,916 km (0.077 R)
• M10: 5,902,833 km (0.09 R)
• M11: 6,419,095 km (0.114 R)
• M12: 6,832,584 km (0.075 R)
• M13: 7,208,673 km (0.061 R)
• M14: 8,728,737 km (0.068 R)
• M15: 9,075,804 km (0.048 R)
• M16: 10,001,216 km (0.083 R)
• M17: 10,522,116 km (0.09 R)
• M18: 11,505,273 km (0.112 R)
• M19: 12,788,673 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.8

Radius: 11.5

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.86 AU - 4.1 AU

Year: 4192 Days

Day: 13.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,077,954 km

• M1: 143,016 km (0.119 R)
• M2: 659,876 km (0.107 R)
• M3: 1,018,761 km (0.093 R)
• M4: 2,008,052 km (0.062 R)
• M5: 2,608,089 km (0.113 R)
• M6: 3,054,938 km (0.085 R)
• M7: 3,591,546 km (0.055 R)
• M8: 4,233,919 km (0.083 R)
• M9: 5,588,079 km (0.054 R)
• M10: 6,364,791 km (0.069 R)
• M11: 7,149,282 km (0.104 R)
• M12: 7,597,627 km (0.076 R)
• M13: 8,375,237 km (0.079 R)
• M14: 8,837,793 km (0.074 R)
• M15: 9,659,385 km (0.107 R)
• M16: 12,385,806 km (0.042 R)
• M17: 20,946,544 km (0.063 R)
• M18: 21,535,361 km (0.109 R)
• M19: 22,745,907 km (0.06 R)
• M20: 23,298,372 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.9

Radius: 9.8

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 4.53 AU - 6.95 AU

Year: 8879 Days

Day: 11.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,077,954 km

• M1: 121,922 km (0.095 R)
• M2: 499,956 km (0.103 R)
• M3: 1,180,776 km (0.104 R)
• M4: 1,576,014 km (0.106 R)
• M5: 2,525,362 km (0.038 R)
• M6: 3,082,763 km (0.12 R)
• M7: 3,818,037 km (0.086 R)
• M8: 4,334,150 km (0.105 R)
• M9: 5,044,291 km (0.118 R)
• M10: 6,551,489 km (0.11 R)
• M11: 6,989,661 km (0.073 R)
• M12: 9,208,946 km (0.089 R)
• M13: 11,648,887 km (0.102 R)
• M14: 13,829,426 km (0.031 R)
• M15: 23,049,890 km (0.07 R)
• M16: 26,732,840 km (0.048 R)
• M17: 27,948,024 km (0.111 R)
• M18: 29,297,247 km (0.109 R)
• M19: 30,891,960 km (0.084 R)
• M20: 35,798,022 km (0.118 R)
• M21: 39,981,976 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.6

Radius: 5

Gravity: 20.58 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 5.32 AU - 6.68 AU

Year: 9489 Days

Day: 21.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 109.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,077,954 km

• M1: 62,382 km (0.116 R)
• M2: 388,356 km (0.111 R)
• M3: 1,034,768 km (0.107 R)
• M4: 1,289,833 km (0.095 R)
• M5: 1,641,837 km (0.057 R)
• M6: 2,385,936 km (0.113 R)
• M7: 2,573,682 km (0.072 R)
• M8: 8,259,897 km (0.061 R)
• M9: 9,002,201 km (0.079 R)
• M10: 9,931,055 km (0.083 R)
• M11: 10,468,410 km (0.063 R)
• M12: 14,227,954 km (0.117 R)
• M13: 14,535,378 km (0.085 R)
• M14: 15,036,680 km (0.117 R)
• M15: 15,355,623 km (0.114 R)
• M16: 17,087,966 km (0.053 R)
• M17: 18,433,450 km (0.11 R)
• M18: 21,333,105 km (0.086 R)
• M19: 31,828,593 km (0.057 R)
• M20: 39,971,354 km (0.103 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 11,945 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit