🌌 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: 481

Radius: 13.6

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.66 AU - 0.74 AU

Year: 378 Days

Day: 10.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,703,544 km

• M1: 169,195 km (0.116 R)
• M2: 602,431 km (0.049 R)
• M3: 1,063,342 km (0.091 R)
• M4: 1,574,368 km (0.084 R)
• M5: 2,015,383 km (0.095 R)
• M6: 2,750,506 km (0.091 R)
• M7: 3,187,033 km (0.114 R)
• M8: 3,798,589 km (0.073 R)
• M9: 4,514,116 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.3

Radius: 10.4

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.84 AU - 1.18 AU

Year: 655 Days

Day: 12.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,703,544 km

• M1: 129,552 km (0.118 R)
• M2: 472,729 km (0.071 R)
• M3: 1,200,074 km (0.088 R)
• M4: 1,826,889 km (0.085 R)
• M5: 2,215,993 km (0.064 R)
• M6: 2,546,455 km (0.111 R)
• M7: 2,943,787 km (0.03 R)
• M8: 3,508,369 km (0.1 R)
• M9: 4,100,926 km (0.066 R)
• M10: 5,147,064 km (0.06 R)
• M11: 5,697,136 km (0.083 R)
• M12: 6,381,546 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.5

Radius: 10.7

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.19 AU - 1.31 AU

Year: 902 Days

Day: 5.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,703,544 km

• M1: 140,622 km (0.062 R)
• M2: 487,539 km (0.118 R)
• M3: 824,284 km (0.047 R)
• M4: 1,212,341 km (0.041 R)
• M5: 1,668,764 km (0.055 R)
• M6: 2,395,212 km (0.07 R)
• M7: 4,626,165 km (0.111 R)
• M8: 5,255,224 km (0.11 R)
• M9: 5,663,177 km (0.077 R)
• M10: 6,266,056 km (0.116 R)
• M11: 6,643,791 km (0.072 R)
• M12: 7,057,878 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 11.5

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.15 AU - 3.13 AU

Year: 2770 Days

Day: 8.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 30,703,544 km

• M1: 145,409 km (0.084 R)
• M2: 556,354 km (0.071 R)
• M3: 1,041,500 km (0.086 R)
• M4: 1,455,138 km (0.066 R)
• M5: 2,082,702 km (0.12 R)
• M6: 2,627,238 km (0.036 R)
• M7: 3,175,664 km (0.082 R)
• M8: 4,617,039 km (0.028 R)
• M9: 5,092,611 km (0.078 R)
• M10: 6,311,833 km (0.099 R)
• M11: 6,719,039 km (0.115 R)
• M12: 8,182,704 km (0.095 R)
• M13: 8,667,701 km (0.059 R)
• M14: 9,581,594 km (0.118 R)
• M15: 11,302,269 km (0.097 R)
• M16: 12,258,349 km (0.051 R)
• M17: 13,647,814 km (0.079 R)
• M18: 15,294,737 km (0.032 R)
• M19: 15,765,970 km (0.117 R)
• M20: 16,409,390 km (0.103 R)
• M21: 17,014,514 km (0.071 R)
• M22: 17,634,447 km (0.079 R)
• M23: 18,210,998 km (0.065 R)
• M24: 20,644,057 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.9

Radius: 11.3

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.47 AU - 3.49 AU

Year: 3322 Days

Day: 6 Hours

Environment

Temp: -193 °C

Axial Tilt: 126.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,703,544 km

• M1: 141,370 km (0.081 R)
• M2: 835,205 km (0.08 R)
• M3: 1,234,631 km (0.063 R)
• M4: 2,003,863 km (0.086 R)
• M5: 2,507,709 km (0.117 R)
• M6: 3,108,195 km (0.066 R)
• M7: 3,492,961 km (0.104 R)
• M8: 4,019,096 km (0.114 R)
• M9: 5,638,045 km (0.036 R)
• M10: 8,104,165 km (0.095 R)
• M11: 9,475,080 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.2

Radius: 8.6

Gravity: 13.04 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.64 AU - 5.32 AU

Year: 6123 Days

Day: 11.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 30,703,544 km

• M1: 106,962 km (0.051 R)
• M2: 402,269 km (0.078 R)
• M3: 825,780 km (0.076 R)
• M4: 1,420,731 km (0.116 R)
• M5: 1,969,755 km (0.12 R)
• M6: 3,072,142 km (0.113 R)
• M7: 3,397,218 km (0.069 R)
• M8: 4,015,656 km (0.072 R)
• M9: 4,405,358 km (0.058 R)
• M10: 5,111,161 km (0.082 R)
• M11: 6,359,705 km (0.094 R)
• M12: 6,890,328 km (0.074 R)
• M13: 7,919,562 km (0.08 R)
• M14: 8,917,529 km (0.084 R)
• M15: 9,673,597 km (0.112 R)
• M16: 11,620,463 km (0.1 R)
• M17: 12,631,147 km (0.107 R)
• M18: 13,073,807 km (0.083 R)
• M19: 14,524,008 km (0.055 R)
• M20: 19,078,815 km (0.071 R)
• M21: 21,482,105 km (0.071 R)
• M22: 30,086,525 km (0.105 R)
• M23: 34,494,726 km (0.112 R)
• M24: 36,018,081 km (0.103 R)
• M25: 36,461,489 km (0.074 R)
• M26: 37,133,183 km (0.051 R)
• M27: 38,156,433 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91

Radius: 3.7

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.42 AU - 8.18 AU

Year: 14066 Days

Day: 18.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,703,544 km

• M1: 46,824 km (0.107 R)
• M2: 169,195 km (0.082 R)
• M3: 519,254 km (0.119 R)
• M4: 793,766 km (0.091 R)
• M5: 933,042 km (0.106 R)
• M6: 1,701,825 km (0.114 R)
• M7: 1,935,497 km (0.102 R)
• M8: 2,657,606 km (0.082 R)
• M9: 2,933,913 km (0.042 R)
• M10: 3,521,983 km (0.108 R)
• M11: 3,697,162 km (0.095 R)
• M12: 3,855,287 km (0.075 R)
• M13: 4,017,900 km (0.118 R)
• M14: 7,004,621 km (0.096 R)
• M15: 12,268,821 km (0.071 R)
• M16: 12,671,688 km (0.094 R)
• M17: 14,989,856 km (0.038 R)
• M18: 16,278,343 km (0.093 R)
• M19: 20,164,596 km (0.036 R)
• M20: 21,951,393 km (0.041 R)
• M21: 22,172,648 km (0.08 R)
• M22: 27,595,870 km (0.101 R)
• M23: 29,166,498 km (0.036 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: 187 - 14,976 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit