🌌 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: 238.4

Radius: 10.5

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.53 AU - 0.65 AU

Year: 313 Days

Day: 8.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,347,235 km

• M1: 130,599 km (0.092 R)
• M2: 523,144 km (0.088 R)
• M3: 1,124,228 km (0.048 R)
• M4: 1,455,288 km (0.101 R)
• M5: 2,009,997 km (0.041 R)
• M6: 2,390,724 km (0.08 R)
• M7: 2,958,747 km (0.109 R)
• M8: 3,299,381 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.9

Radius: 10.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.64 AU - 1.02 AU

Year: 522 Days

Day: 9.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,347,235 km

• M1: 128,056 km (0.118 R)
• M2: 449,392 km (0.089 R)
• M3: 1,000,511 km (0.069 R)
• M4: 1,422,975 km (0.078 R)
• M5: 2,409,423 km (0.087 R)
• M6: 3,228,621 km (0.043 R)
• M7: 3,774,653 km (0.076 R)
• M8: 4,395,784 km (0.114 R)
• M9: 4,972,035 km (0.1 R)
• M10: 5,719,127 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.8

Radius: 13.3

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.84 AU - 1.02 AU

Year: 619 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,347,235 km

• M1: 165,455 km (0.078 R)
• M2: 618,438 km (0.12 R)
• M3: 1,033,272 km (0.102 R)
• M4: 1,736,981 km (0.106 R)
• M5: 2,345,695 km (0.109 R)
• M6: 2,921,497 km (0.062 R)
• M7: 3,885,954 km (0.065 R)
• M8: 4,360,030 km (0.059 R)
• M9: 5,019,457 km (0.067 R)
• M10: 5,548,286 km (0.087 R)
• M11: 6,057,816 km (0.065 R)
• M12: 6,678,199 km (0.109 R)
• M13: 7,150,030 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.3

Radius: 15

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.33 AU - 1.41 AU

Year: 1107 Days

Day: 12.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,347,235 km

• M1: 186,549 km (0.097 R)
• M2: 763,398 km (0.095 R)
• M3: 1,241,214 km (0.096 R)
• M4: 2,496,788 km (0.106 R)
• M5: 3,353,984 km (0.059 R)
• M6: 4,571,861 km (0.09 R)
• M7: 5,093,957 km (0.063 R)
• M8: 5,921,233 km (0.076 R)
• M9: 7,304,714 km (0.108 R)
• M10: 8,175,972 km (0.11 R)
• M11: 8,839,888 km (0.105 R)
• M12: 9,539,707 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644

Radius: 10.8

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.3 AU - 1.74 AU

Year: 1294 Days

Day: 12.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,347,235 km

• M1: 134,937 km (0.1 R)
• M2: 527,183 km (0.078 R)
• M3: 1,001,707 km (0.049 R)
• M4: 1,367,325 km (0.104 R)
• M5: 2,451,460 km (0.088 R)
• M6: 2,992,107 km (0.034 R)
• M7: 3,610,993 km (0.083 R)
• M8: 3,984,988 km (0.08 R)
• M9: 4,966,201 km (0.077 R)
• M10: 6,260,521 km (0.084 R)
• M11: 6,875,817 km (0.097 R)
• M12: 7,583,116 km (0.118 R)
• M13: 8,422,061 km (0.08 R)
• M14: 8,791,867 km (0.078 R)
• M15: 9,412,100 km (0.097 R)
• M16: 10,252,241 km (0.098 R)
• M17: 10,674,257 km (0.111 R)
• M18: 11,797,737 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.7

Radius: 13.4

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.96 AU - 3.2 AU

Year: 2860 Days

Day: 6.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,347,235 km

• M1: 166,652 km (0.109 R)
• M2: 825,780 km (0.055 R)
• M3: 1,353,113 km (0.109 R)
• M4: 2,232,299 km (0.109 R)
• M5: 2,688,274 km (0.099 R)
• M6: 3,810,856 km (0.059 R)
• M7: 4,261,894 km (0.09 R)
• M8: 4,726,694 km (0.119 R)
• M9: 5,585,386 km (0.09 R)
• M10: 6,143,835 km (0.097 R)
• M11: 7,080,168 km (0.043 R)
• M12: 7,766,074 km (0.108 R)
• M13: 8,561,486 km (0.052 R)
• M14: 9,873,908 km (0.068 R)
• M15: 13,201,264 km (0.079 R)
• M16: 14,011,037 km (0.105 R)
• M17: 16,588,609 km (0.041 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79

Radius: 3.1

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.18 AU - 8.48 AU

Year: 13698 Days

Day: 23.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,347,235 km

• M1: 39,643 km (0.101 R)
• M2: 406,757 km (0.107 R)
• M3: 761,453 km (0.06 R)
• M4: 878,289 km (0.025 R)
• M5: 1,178,083 km (0.058 R)
• M6: 1,494,333 km (0.085 R)
• M7: 2,453,405 km (0.067 R)
• M8: 2,571,139 km (0.12 R)
• M9: 2,745,719 km (0.108 R)
• M10: 3,545,470 km (0.115 R)
• M11: 4,794,013 km (0.081 R)
• M12: 5,249,539 km (0.108 R)
• M13: 6,092,373 km (0.074 R)
• M14: 6,529,797 km (0.115 R)
• M15: 6,788,901 km (0.094 R)
• M16: 7,293,345 km (0.085 R)
• M17: 7,397,166 km (0.042 R)
• M18: 8,414,132 km (0.084 R)
• M19: 8,759,853 km (0.084 R)
• M20: 11,731,615 km (0.04 R)
• M21: 13,006,188 km (0.103 R)
• M22: 16,530,714 km (0.077 R)
• M23: 17,316,851 km (0.11 R)
• M24: 18,127,672 km (0.091 R)
• M25: 21,129,353 km (0.079 R)
• M26: 28,519,936 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.7

Radius: 5.7

Gravity: 22.06 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.37 AU - 8.37 AU

Year: 13811 Days

Day: 15.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 60,347,235 km

• M1: 70,909 km (0.041 R)
• M2: 372,349 km (0.1 R)
• M3: 1,422,676 km (0.109 R)
• M4: 1,831,976 km (0.108 R)
• M5: 2,439,941 km (0.086 R)
• M6: 3,591,695 km (0.082 R)
• M7: 3,813,998 km (0.114 R)
• M8: 4,045,426 km (0.057 R)
• M9: 4,317,095 km (0.064 R)
• M10: 4,730,733 km (0.064 R)
• M11: 5,032,472 km (0.071 R)
• M12: 6,778,728 km (0.056 R)
• M13: 7,337,476 km (0.072 R)
• M14: 8,161,013 km (0.077 R)
• M15: 9,828,281 km (0.119 R)
• M16: 12,831,907 km (0.113 R)
• M17: 13,025,636 km (0.11 R)
• M18: 13,685,363 km (0.066 R)
• M19: 13,887,470 km (0.062 R)
• M20: 14,091,671 km (0.119 R)
• M21: 15,431,768 km (0.083 R)
• M22: 24,200,448 km (0.107 R)
• M23: 30,357,298 km (0.093 R)
• M24: 30,816,862 km (0.091 R)
• M25: 38,276,410 km (0.059 R)
• M26: 40,037,477 km (0.074 R)
• M27: 41,851,650 km (0.118 R)
• M28: 42,278,004 km (0.093 R)
• M29: 43,429,010 km (0.087 R)
• M30: 44,748,762 km (0.093 R)
• M31: 45,493,460 km (0.112 R)
• M32: 48,086,889 km (0.109 R)
• M33: 53,901,010 km (0.063 R)
• M34: 54,574,650 km (0.078 R)
• M35: 56,802,461 km (0.059 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: 534 - 17,147 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit