🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.4

Radius: 12.4

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.67 AU - 0.81 AU

Year: 418 Days

Day: 12.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,560,940 km

• M1: 154,235 km (0.078 R)
• M2: 603,927 km (0.077 R)
• M3: 1,045,839 km (0.104 R)
• M4: 1,508,096 km (0.094 R)
• M5: 1,986,660 km (0.107 R)
• M6: 2,473,302 km (0.111 R)
• M7: 2,861,807 km (0.108 R)
• M8: 3,617,725 km (0.046 R)
• M9: 4,432,884 km (0.046 R)
• M10: 5,335,408 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.3

Radius: 13

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.67 AU - 0.91 AU

Year: 461 Days

Day: 14.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 79,560,940 km

• M1: 170,242 km (0.072 R)
• M2: 681,717 km (0.074 R)
• M3: 1,459,776 km (0.108 R)
• M4: 1,959,732 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.5

Radius: 14.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.81 AU - 1.27 AU

Year: 696 Days

Day: 10.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,560,940 km

• M1: 175,329 km (0.051 R)
• M2: 762,949 km (0.115 R)
• M3: 1,215,782 km (0.032 R)
• M4: 1,729,501 km (0.108 R)
• M5: 2,217,190 km (0.104 R)
• M6: 3,226,826 km (0.118 R)
• M7: 3,815,643 km (0.097 R)
• M8: 4,395,036 km (0.03 R)
• M9: 5,579,402 km (0.084 R)
• M10: 6,085,193 km (0.099 R)
• M11: 6,967,072 km (0.078 R)
• M12: 7,648,042 km (0.101 R)
• M13: 8,224,442 km (0.11 R)
• M14: 8,701,360 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.8

Radius: 13.8

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.36 AU - 2.76 AU

Year: 2687 Days

Day: 12.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,560,940 km

• M1: 171,738 km (0.105 R)
• M2: 615,894 km (0.068 R)
• M3: 1,301,501 km (0.083 R)
• M4: 2,152,863 km (0.099 R)
• M5: 2,635,615 km (0.112 R)
• M6: 3,350,843 km (0.102 R)
• M7: 3,903,906 km (0.094 R)
• M8: 4,385,611 km (0.088 R)
• M9: 5,269,435 km (0.084 R)
• M10: 6,102,995 km (0.074 R)
• M11: 6,580,661 km (0.056 R)
• M12: 8,994,871 km (0.042 R)
• M13: 9,916,992 km (0.098 R)
• M14: 10,420,988 km (0.083 R)
• M15: 10,901,346 km (0.05 R)
• M16: 11,949,878 km (0.037 R)
• M17: 14,443,076 km (0.054 R)
• M18: 15,759,687 km (0.058 R)
• M19: 18,572,426 km (0.085 R)
• M20: 21,640,230 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.6

Radius: 11.2

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.58 AU - 2.8 AU

Year: 2894 Days

Day: 6.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,560,940 km

• M1: 139,276 km (0.085 R)
• M2: 1,437,187 km (0.118 R)
• M3: 1,814,772 km (0.106 R)
• M4: 2,728,665 km (0.086 R)
• M5: 3,966,588 km (0.084 R)
• M6: 5,003,450 km (0.025 R)
• M7: 5,572,670 km (0.052 R)
• M8: 6,157,299 km (0.078 R)
• M9: 8,428,344 km (0.119 R)
• M10: 9,676,888 km (0.046 R)
• M11: 12,716,717 km (0.094 R)
• M12: 14,355,262 km (0.062 R)
• M13: 14,998,383 km (0.084 R)
• M14: 17,708,349 km (0.048 R)
• M15: 20,111,788 km (0.085 R)
• M16: 20,604,863 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112

Radius: 13.4

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.61 AU - 5.17 AU

Year: 6034 Days

Day: 7.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,560,940 km

• M1: 167,699 km (0.103 R)
• M2: 591,510 km (0.108 R)
• M3: 1,454,390 km (0.114 R)
• M4: 1,913,955 km (0.096 R)
• M5: 2,375,764 km (0.057 R)
• M6: 3,007,067 km (0.068 R)
• M7: 3,530,061 km (0.111 R)
• M8: 4,274,310 km (0.1 R)
• M9: 4,826,925 km (0.11 R)
• M10: 5,548,136 km (0.118 R)
• M11: 7,744,383 km (0.102 R)
• M12: 8,213,372 km (0.104 R)
• M13: 9,071,316 km (0.104 R)
• M14: 10,319,560 km (0.05 R)
• M15: 12,678,719 km (0.074 R)
• M16: 15,280,375 km (0.037 R)
• M17: 16,272,209 km (0.101 R)
• M18: 17,947,855 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.5

Radius: 4.3

Gravity: 36.97 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.85 AU - 8.29 AU

Year: 15039 Days

Day: 20.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 79,560,940 km

• M1: 53,855 km (0.077 R)
• M2: 194,627 km (0.085 R)
• M3: 470,934 km (0.109 R)
• M4: 1,132,306 km (0.108 R)
• M5: 1,783,805 km (0.103 R)
• M6: 2,678,251 km (0.079 R)
• M7: 3,866,507 km (0.116 R)
• M8: 4,909,952 km (0.106 R)
• M9: 6,617,312 km (0.034 R)
• M10: 7,398,961 km (0.071 R)
• M11: 8,386,457 km (0.113 R)
• M12: 8,534,409 km (0.112 R)
• M13: 8,988,738 km (0.115 R)
• M14: 9,353,008 km (0.034 R)
• M15: 13,086,822 km (0.109 R)
• M16: 13,487,146 km (0.041 R)
• M17: 14,172,453 km (0.113 R)
• M18: 15,463,932 km (0.116 R)
• M19: 20,156,518 km (0.114 R)
• M20: 21,142,069 km (0.111 R)
• M21: 21,508,284 km (0.1 R)
• M22: 21,693,038 km (0.062 R)
• M23: 23,893,622 km (0.105 R)
• M24: 25,924,413 km (0.12 R)
• M25: 27,957,448 km (0.104 R)
• M26: 34,311,319 km (0.086 R)
• M27: 35,713,649 km (0.113 R)
• M28: 36,363,652 km (0.116 R)
• M29: 38,632,304 km (0.082 R)
• M30: 40,993,706 km (0.09 R)
• M31: 49,289,806 km (0.051 R)
• M32: 51,566,984 km (0.071 R)
• M33: 52,230,152 km (0.111 R)
• M34: 53,404,495 km (0.1 R)
• M35: 57,032,991 km (0.11 R)
• M36: 59,359,687 km (0.097 R)
• M37: 59,905,420 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 870.8

Radius: 7.1

Gravity: 17.27 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 9.1 AU - 9.74 AU

Year: 18966 Days

Day: 21.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,560,940 km

• M1: 88,562 km (0.098 R)
• M2: 320,738 km (0.062 R)
• M3: 1,214,585 km (0.107 R)
• M4: 3,554,445 km (0.092 R)
• M5: 4,212,526 km (0.114 R)
• M6: 5,605,881 km (0.077 R)
• M7: 7,186,383 km (0.089 R)
• M8: 8,605,468 km (0.089 R)
• M9: 8,877,287 km (0.085 R)
• M10: 10,082,148 km (0.106 R)
• M11: 24,966,987 km (0.1 R)
• M12: 28,292,697 km (0.107 R)
• M13: 35,668,022 km (0.105 R)
• M14: 40,473,854 km (0.11 R)
• M15: 42,011,271 km (0.048 R)
• M16: 43,906,975 km (0.072 R)
• M17: 44,389,727 km (0.059 R)
• M18: 46,024,234 km (0.114 R)
• M19: 52,964,528 km (0.058 R)
• M20: 61,569,996 km (0.113 R)
• M21: 78,611,138 km (0.083 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 12,680 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit