🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.3

Radius: 9.4

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.63 AU - 0.69 AU

Year: 364 Days

Day: 13.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 79,522,819 km

• M1: 131,197 km (0.049 R)
• M2: 462,856 km (0.111 R)
• M3: 768,185 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.7

Radius: 14.1

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.69 AU - 0.85 AU

Year: 458 Days

Day: 5.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,522,819 km

• M1: 175,329 km (0.034 R)
• M2: 621,130 km (0.075 R)
• M3: 1,126,472 km (0.096 R)
• M4: 1,647,970 km (0.09 R)
• M5: 2,172,161 km (0.106 R)
• M6: 2,715,800 km (0.115 R)
• M7: 3,234,007 km (0.114 R)
• M8: 3,703,594 km (0.117 R)
• M9: 4,163,758 km (0.104 R)
• M10: 4,662,367 km (0.114 R)
• M11: 5,729,449 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.6

Radius: 14.3

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.82 AU - 0.96 AU

Year: 569 Days

Day: 10.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 79,522,819 km

• M1: 178,021 km (0.051 R)
• M2: 657,931 km (0.062 R)
• M3: 1,561,951 km (0.117 R)
• M4: 2,011,044 km (0.095 R)
• M5: 3,337,528 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.8

Radius: 13

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.78 AU - 1.08 AU

Year: 608 Days

Day: 10.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,522,819 km

• M1: 161,715 km (0.057 R)
• M2: 773,271 km (0.03 R)
• M3: 1,339,200 km (0.091 R)
• M4: 1,749,397 km (0.047 R)
• M5: 2,245,165 km (0.042 R)
• M6: 2,754,246 km (0.078 R)
• M7: 3,262,580 km (0.105 R)
• M8: 3,691,627 km (0.11 R)
• M9: 4,422,412 km (0.084 R)
• M10: 5,744,857 km (0.104 R)
• M11: 7,204,633 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.1

Radius: 14.7

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.3 AU - 1.3 AU

Year: 1005 Days

Day: 7 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,522,819 km

• M1: 182,958 km (0.061 R)
• M2: 684,560 km (0.102 R)
• M3: 1,273,227 km (0.109 R)
• M4: 2,012,241 km (0.113 R)
• M5: 3,113,281 km (0.116 R)
• M6: 5,373,556 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.3

Radius: 8.8

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.86 AU - 3.52 AU

Year: 3864 Days

Day: 10.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,522,819 km

• M1: 113,994 km (0.102 R)
• M2: 1,293,423 km (0.117 R)
• M3: 2,069,986 km (0.093 R)
• M4: 2,656,858 km (0.112 R)
• M5: 3,639,866 km (0.118 R)
• M6: 4,237,958 km (0.093 R)
• M7: 4,593,851 km (0.08 R)
• M8: 7,371,136 km (0.078 R)
• M9: 7,791,655 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.6

Radius: 14

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.37 AU - 5.13 AU

Year: 7022 Days

Day: 11 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,522,819 km

• M1: 174,581 km (0.103 R)
• M2: 896,241 km (0.03 R)
• M3: 1,459,178 km (0.075 R)
• M4: 1,995,037 km (0.066 R)
• M5: 2,611,380 km (0.053 R)
• M6: 3,393,478 km (0.099 R)
• M7: 5,684,569 km (0.082 R)
• M8: 6,351,327 km (0.112 R)
• M9: 7,589,998 km (0.049 R)
• M10: 10,676,950 km (0.087 R)
• M11: 12,927,500 km (0.12 R)
• M12: 17,210,786 km (0.09 R)
• M13: 19,002,670 km (0.112 R)
• M14: 19,807,506 km (0.088 R)
• M15: 20,916,026 km (0.053 R)
• M16: 21,485,545 km (0.038 R)
• M17: 23,332,331 km (0.098 R)
• M18: 24,022,426 km (0.094 R)
• M19: 28,366,150 km (0.067 R)
• M20: 29,152,436 km (0.045 R)
• M21: 29,595,545 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.9

Radius: 4.1

Gravity: 49.01 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 8.37 AU - 10.39 AU

Year: 19485 Days

Day: 21.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,522,819 km

• M1: 51,162 km (0.104 R)
• M2: 225,594 km (0.106 R)
• M3: 1,399,937 km (0.113 R)
• M4: 2,679,597 km (0.062 R)
• M5: 3,727,979 km (0.086 R)
• M6: 4,043,930 km (0.06 R)
• M7: 4,728,938 km (0.113 R)
• M8: 5,731,094 km (0.058 R)
• M9: 6,066,044 km (0.114 R)
• M10: 7,586,407 km (0.077 R)
• M11: 10,408,122 km (0.067 R)
• M12: 14,082,396 km (0.081 R)
• M13: 14,460,878 km (0.118 R)
• M14: 16,043,175 km (0.075 R)
• M15: 16,791,314 km (0.081 R)
• M16: 18,536,822 km (0.078 R)
• M17: 19,828,151 km (0.109 R)
• M18: 31,735,543 km (0.069 R)
• M19: 41,508,323 km (0.075 R)
• M20: 43,869,276 km (0.091 R)
• M21: 46,152,140 km (0.112 R)
• M22: 48,856,570 km (0.06 R)
• M23: 53,656,867 km (0.064 R)
• M24: 54,208,883 km (0.042 R)
• M25: 55,887,521 km (0.052 R)
• M26: 58,373,089 km (0.082 R)
• M27: 58,761,894 km (0.055 R)
• M28: 58,956,970 km (0.093 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 11,631 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit