🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.3

Radius: 11.9

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.51 AU - 0.67 AU

Year: 302 Days

Day: 10.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,603,677 km

• M1: 147,952 km (0.081 R)
• M2: 521,498 km (0.103 R)
• M3: 1,451,249 km (0.083 R)
• M4: 2,009,548 km (0.067 R)
• M5: 2,446,524 km (0.094 R)
• M6: 3,104,006 km (0.07 R)
• M7: 3,527,219 km (0.116 R)
• M8: 4,195,472 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.6

Radius: 8.5

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.47 AU - 0.71 AU

Year: 302 Days

Day: 5.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 48,603,677 km

• M1: 107,262 km (0.071 R)
• M2: 398,828 km (0.079 R)
• M3: 1,095,206 km (0.104 R)
• M4: 1,900,791 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.6

Radius: 9.3

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.68 AU - 0.8 AU

Year: 424 Days

Day: 13.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,603,677 km

• M1: 115,639 km (0.095 R)
• M2: 419,772 km (0.075 R)
• M3: 716,574 km (0.072 R)
• M4: 1,070,672 km (0.07 R)
• M5: 1,476,082 km (0.083 R)
• M6: 1,982,621 km (0.095 R)
• M7: 2,338,065 km (0.057 R)
• M8: 2,763,521 km (0.058 R)
• M9: 3,158,609 km (0.042 R)
• M10: 3,525,573 km (0.07 R)
• M11: 3,839,429 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.9

Radius: 10.6

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.7 AU - 0.86 AU

Year: 459 Days

Day: 14.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,603,677 km

• M1: 131,945 km (0.099 R)
• M2: 465,997 km (0.071 R)
• M3: 833,410 km (0.108 R)
• M4: 1,206,956 km (0.111 R)
• M5: 1,564,195 km (0.034 R)
• M6: 2,077,466 km (0.036 R)
• M7: 2,629,033 km (0.069 R)
• M8: 2,989,863 km (0.077 R)
• M9: 3,432,523 km (0.027 R)
• M10: 4,108,855 km (0.056 R)
• M11: 4,582,781 km (0.055 R)
• M12: 5,076,903 km (0.111 R)
• M13: 5,623,534 km (0.077 R)
• M14: 6,135,757 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.2

Radius: 9.4

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.15 AU - 1.65 AU

Year: 1105 Days

Day: 10.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,603,677 km

• M1: 117,434 km (0.115 R)
• M2: 681,418 km (0.107 R)
• M3: 1,054,366 km (0.118 R)
• M4: 2,813,786 km (0.068 R)
• M5: 3,511,361 km (0.068 R)
• M6: 4,302,734 km (0.081 R)
• M7: 5,017,961 km (0.051 R)
• M8: 6,020,716 km (0.11 R)
• M9: 6,412,812 km (0.064 R)
• M10: 8,445,697 km (0.059 R)
• M11: 9,799,857 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.7

Radius: 14.9

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.61 AU - 3.69 AU

Year: 4650 Days

Day: 13.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,603,677 km

• M1: 185,352 km (0.059 R)
• M2: 1,522,458 km (0.086 R)
• M3: 1,994,588 km (0.067 R)
• M4: 2,970,266 km (0.099 R)
• M5: 4,856,396 km (0.109 R)
• M6: 5,525,697 km (0.1 R)
• M7: 6,114,364 km (0.063 R)
• M8: 8,251,071 km (0.102 R)
• M9: 10,303,105 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.4

Radius: 13.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.9 AU - 5.08 AU

Year: 6345 Days

Day: 5.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,603,677 km

• M1: 166,652 km (0.07 R)
• M2: 779,704 km (0.103 R)
• M3: 1,615,956 km (0.115 R)
• M4: 2,623,947 km (0.079 R)
• M5: 4,106,910 km (0.12 R)
• M6: 4,992,231 km (0.112 R)
• M7: 5,737,078 km (0.11 R)
• M8: 7,209,421 km (0.109 R)
• M9: 8,611,751 km (0.096 R)
• M10: 10,844,350 km (0.067 R)
• M11: 11,342,660 km (0.062 R)
• M12: 12,336,439 km (0.082 R)
• M13: 16,720,704 km (0.045 R)
• M14: 18,260,215 km (0.111 R)
• M15: 24,356,628 km (0.101 R)
• M16: 26,009,086 km (0.045 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.1

Radius: 14.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.52 AU - 6.48 AU

Year: 8601 Days

Day: 9.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,603,677 km

• M1: 181,612 km (0.105 R)
• M2: 746,793 km (0.103 R)
• M3: 1,490,444 km (0.066 R)
• M4: 2,409,573 km (0.093 R)
• M5: 3,706,736 km (0.09 R)
• M6: 4,496,613 km (0.079 R)
• M7: 7,471,666 km (0.049 R)
• M8: 8,064,672 km (0.04 R)
• M9: 10,187,316 km (0.041 R)
• M10: 10,917,802 km (0.095 R)
• M11: 12,136,426 km (0.106 R)
• M12: 12,719,409 km (0.116 R)
• M13: 14,646,828 km (0.056 R)
• M14: 15,174,310 km (0.034 R)
• M15: 16,478,355 km (0.076 R)
• M16: 17,412,893 km (0.106 R)
• M17: 19,152,417 km (0.087 R)
• M18: 20,185,540 km (0.033 R)
• M19: 21,339,239 km (0.066 R)
• M20: 27,477,838 km (0.113 R)
• M21: 28,281,627 km (0.114 R)
• M22: 28,791,905 km (0.041 R)
• M23: 29,412,288 km (0.104 R)
• M24: 30,572,868 km (0.112 R)
• M25: 35,286,847 km (0.104 R)
• M26: 45,567,063 km (0.103 R)
• M27: 46,268,826 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 670.6

Radius: 7.9

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.99 AU - 6.43 AU

Year: 10320 Days

Day: 15.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,603,677 km

• M1: 98,286 km (0.048 R)
• M2: 410,347 km (0.113 R)
• M3: 794,215 km (0.093 R)
• M4: 1,381,836 km (0.056 R)
• M5: 2,004,761 km (0.084 R)
• M6: 2,418,399 km (0.061 R)
• M7: 2,931,520 km (0.05 R)
• M8: 3,769,418 km (0.102 R)
• M9: 4,202,055 km (0.043 R)
• M10: 4,912,495 km (0.064 R)
• M11: 5,362,635 km (0.116 R)
• M12: 8,256,755 km (0.054 R)
• M13: 8,800,394 km (0.07 R)
• M14: 11,883,606 km (0.038 R)
• M15: 13,419,079 km (0.064 R)
• M16: 14,043,351 km (0.11 R)
• M17: 14,686,921 km (0.118 R)
• M18: 19,279,575 km (0.044 R)
• M19: 20,808,017 km (0.038 R)
• M20: 22,070,473 km (0.034 R)
• M21: 24,470,322 km (0.112 R)
• M22: 26,163,471 km (0.093 R)
• M23: 27,732,902 km (0.084 R)
• M24: 29,156,775 km (0.075 R)
• M25: 34,177,878 km (0.116 R)
• M26: 36,530,154 km (0.119 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 19,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit