🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.2

Radius: 10.6

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.74 AU - 0.82 AU

Year: 476 Days

Day: 8.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,627,089 km

• M1: 134,788 km (0.062 R)
• M2: 480,060 km (0.116 R)
• M3: 880,084 km (0.062 R)
• M4: 1,803,402 km (0.09 R)
• M5: 2,322,357 km (0.075 R)
• M6: 3,190,025 km (0.113 R)
• M7: 3,551,603 km (0.12 R)
• M8: 4,343,873 km (0.094 R)
• M9: 5,265,845 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.7

Radius: 10.7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.87 AU - 1.05 AU

Year: 649 Days

Day: 10.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,627,089 km

• M1: 133,591 km (0.09 R)
• M2: 689,646 km (0.085 R)
• M3: 1,373,608 km (0.085 R)
• M4: 2,318,917 km (0.096 R)
• M5: 2,695,454 km (0.044 R)
• M6: 3,065,709 km (0.053 R)
• M7: 3,431,925 km (0.116 R)
• M8: 4,282,837 km (0.036 R)
• M9: 4,902,771 km (0.118 R)
• M10: 5,371,611 km (0.056 R)
• M11: 5,724,662 km (0.109 R)
• M12: 6,187,817 km (0.109 R)
• M13: 6,675,805 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.7

Radius: 8.8

Gravity: 10.93 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.66 AU - 1.76 AU

Year: 1543 Days

Day: 14 Hours

Environment

Temp: -202 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,627,089 km

• M1: 109,506 km (0.101 R)
• M2: 389,104 km (0.112 R)
• M3: 1,028,785 km (0.109 R)
• M4: 1,558,211 km (0.105 R)
• M5: 1,880,595 km (0.117 R)
• M6: 2,621,104 km (0.076 R)
• M7: 3,493,858 km (0.098 R)
• M8: 4,831,862 km (0.085 R)
• M9: 5,127,317 km (0.091 R)
• M10: 6,063,202 km (0.033 R)
• M11: 6,661,444 km (0.112 R)
• M12: 7,632,035 km (0.118 R)
• M13: 8,848,864 km (0.095 R)
• M14: 9,228,244 km (0.114 R)
• M15: 9,519,960 km (0.036 R)
• M16: 10,963,729 km (0.112 R)
• M17: 11,401,751 km (0.112 R)
• M18: 12,235,011 km (0.12 R)
• M19: 13,108,364 km (0.114 R)
• M20: 13,811,175 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.8

Radius: 9.9

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.92 AU - 3.7 AU

Year: 4157 Days

Day: 14.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,627,089 km

• M1: 375,790 km (0.086 R)
• M2: 742,155 km (0.113 R)
• M3: 1,519,765 km (0.037 R)
• M4: 5,863,040 km (0.095 R)
• M5: 6,518,877 km (0.096 R)
• M6: 7,166,935 km (0.113 R)
• M7: 8,910,797 km (0.119 R)
• M8: 9,916,095 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.2

Radius: 9.7

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.88 AU - 4.44 AU

Year: 4833 Days

Day: 8.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,627,089 km

• M1: 120,576 km (0.052 R)
• M2: 517,908 km (0.064 R)
• M3: 906,563 km (0.109 R)
• M4: 1,696,739 km (0.102 R)
• M5: 2,109,629 km (0.072 R)
• M6: 3,004,524 km (0.112 R)
• M7: 3,591,845 km (0.078 R)
• M8: 5,159,032 km (0.064 R)
• M9: 5,642,532 km (0.057 R)
• M10: 6,799,971 km (0.093 R)
• M11: 7,595,233 km (0.117 R)
• M12: 9,370,063 km (0.093 R)
• M13: 11,595,630 km (0.089 R)
• M14: 13,088,467 km (0.057 R)
• M15: 13,401,725 km (0.068 R)
• M16: 14,761,570 km (0.093 R)
• M17: 16,151,334 km (0.091 R)
• M18: 16,633,488 km (0.116 R)
• M19: 17,001,349 km (0.116 R)
• M20: 17,626,369 km (0.093 R)
• M21: 19,798,530 km (0.106 R)
• M22: 24,985,836 km (0.098 R)
• M23: 26,122,032 km (0.103 R)
• M24: 26,870,470 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.3

Radius: 4.1

Gravity: 42.37 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 5.47 AU - 6.39 AU

Year: 9968 Days

Day: 15 Hours

Environment

Temp: -228 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,627,089 km

• M1: 51,013 km (0.107 R)
• M2: 186,698 km (0.108 R)
• M3: 461,958 km (0.117 R)
• M4: 602,431 km (0.06 R)
• M5: 951,742 km (0.114 R)
• M6: 1,728,005 km (0.084 R)
• M7: 2,271,943 km (0.119 R)
• M8: 3,793,204 km (0.084 R)
• M9: 4,345,369 km (0.025 R)
• M10: 6,662,790 km (0.076 R)
• M11: 7,055,484 km (0.088 R)
• M12: 7,505,026 km (0.07 R)
• M13: 8,597,390 km (0.032 R)
• M14: 8,827,920 km (0.079 R)
• M15: 11,038,079 km (0.071 R)
• M16: 11,310,497 km (0.083 R)
• M17: 13,591,266 km (0.116 R)
• M18: 14,350,475 km (0.064 R)
• M19: 15,004,218 km (0.102 R)
• M20: 16,512,164 km (0.111 R)
• M21: 28,130,832 km (0.067 R)
• M22: 28,741,192 km (0.063 R)
• M23: 29,673,336 km (0.091 R)
• M24: 29,883,072 km (0.08 R)
• M25: 31,379,799 km (0.078 R)
• M26: 32,367,893 km (0.074 R)
• M27: 35,574,523 km (0.072 R)
• M28: 36,288,105 km (0.096 R)
• M29: 38,610,762 km (0.072 R)
• M30: 41,160,807 km (0.053 R)
• M31: 44,640,603 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.5

Radius: 5.6

Gravity: 18.03 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 8.64 AU - 9.5 AU

Year: 18855 Days

Day: 22.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,627,089 km

• M1: 84,523 km (0.1 R)
• M2: 383,270 km (0.096 R)
• M3: 1,041,201 km (0.071 R)
• M4: 1,302,698 km (0.087 R)
• M5: 3,951,628 km (0.097 R)
• M6: 4,424,507 km (0.082 R)
• M7: 5,076,753 km (0.034 R)
• M8: 6,358,657 km (0.084 R)
• M9: 6,699,292 km (0.105 R)
• M10: 9,653,850 km (0.055 R)
• M11: 14,007,148 km (0.113 R)
• M12: 19,779,681 km (0.068 R)
• M13: 20,231,018 km (0.088 R)
• M14: 20,689,236 km (0.089 R)
• M15: 21,154,336 km (0.05 R)
• M16: 21,817,054 km (0.115 R)
• M17: 24,194,763 km (0.115 R)
• M18: 26,521,010 km (0.096 R)
• M19: 28,190,073 km (0.09 R)
• M20: 32,354,130 km (0.085 R)
• M21: 40,994,903 km (0.104 R)
• M22: 52,934,010 km (0.116 R)
• M23: 63,027,976 km (0.104 R)
• M24: 63,222,454 km (0.12 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 19,283 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit