🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.5 AU - 0.6 AU

Year: 263 Days

Day: 32.5 Hours

Environment

Temp: -112 °C

Axial Tilt: 163.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.8

Radius: 9.8

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.61 AU - 0.81 AU

Year: 386 Days

Day: 9.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 93,144,547 km

• M1: 121,922 km (0.109 R)
• M2: 519,105 km (0.112 R)
• M3: 1,030,131 km (0.057 R)
• M4: 1,511,088 km (0.113 R)
• M5: 2,005,958 km (0.104 R)
• M6: 2,520,425 km (0.113 R)
• M7: 2,845,352 km (0.066 R)
• M8: 3,438,058 km (0.107 R)
• M9: 3,852,145 km (0.079 R)
• M10: 4,795,659 km (0.115 R)
• M11: 5,473,337 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.1

Radius: 10

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.34 AU - 1.86 AU

Year: 1307 Days

Day: 10.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 93,144,547 km

• M1: 124,615 km (0.097 R)
• M2: 521,049 km (0.077 R)
• M3: 871,108 km (0.075 R)
• M4: 1,433,148 km (0.118 R)
• M5: 1,853,069 km (0.044 R)
• M6: 2,306,350 km (0.073 R)
• M7: 2,874,224 km (0.109 R)
• M8: 3,221,740 km (0.12 R)
• M9: 3,762,536 km (0.088 R)
• M10: 4,725,348 km (0.094 R)
• M11: 5,046,235 km (0.086 R)
• M12: 5,446,260 km (0.113 R)
• M13: 7,829,055 km (0.112 R)
• M14: 9,141,477 km (0.096 R)
• M15: 9,705,461 km (0.075 R)
• M16: 10,292,633 km (0.117 R)
• M17: 11,791,155 km (0.096 R)
• M18: 13,075,153 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.3

Radius: 13.5

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.4 AU - 3.92 AU

Year: 3627 Days

Day: 6.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 93,144,547 km

• M1: 167,849 km (0.114 R)
• M2: 914,193 km (0.035 R)
• M3: 1,644,679 km (0.081 R)
• M4: 2,392,818 km (0.116 R)
• M5: 3,642,259 km (0.11 R)
• M6: 4,731,481 km (0.112 R)
• M7: 5,314,464 km (0.07 R)
• M8: 5,945,019 km (0.093 R)
• M9: 7,612,138 km (0.118 R)
• M10: 8,141,415 km (0.118 R)
• M11: 10,548,894 km (0.081 R)
• M12: 11,334,432 km (0.095 R)
• M13: 12,562,780 km (0.08 R)
• M14: 13,303,439 km (0.051 R)
• M15: 14,821,409 km (0.09 R)
• M16: 15,491,308 km (0.043 R)
• M17: 15,966,880 km (0.085 R)
• M18: 17,737,221 km (0.06 R)
• M19: 19,329,840 km (0.07 R)
• M20: 20,887,902 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.5

Radius: 12.8

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.98 AU - 5.2 AU

Year: 6349 Days

Day: 7.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 93,144,547 km

• M1: 175,927 km (0.07 R)
• M2: 589,565 km (0.116 R)
• M3: 1,248,693 km (0.079 R)
• M4: 3,398,116 km (0.105 R)
• M5: 3,968,532 km (0.091 R)
• M6: 4,480,007 km (0.083 R)
• M7: 6,315,125 km (0.107 R)
• M8: 7,147,637 km (0.113 R)
• M9: 12,448,039 km (0.117 R)
• M10: 16,409,839 km (0.114 R)
• M11: 17,487,692 km (0.091 R)
• M12: 22,491,142 km (0.053 R)
• M13: 25,831,962 km (0.105 R)
• M14: 27,289,494 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 925.9

Radius: 5

Gravity: 37.04 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.98 AU - 11.86 AU

Year: 23300 Days

Day: 20.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 93,144,547 km

• M1: 62,831 km (0.115 R)
• M2: 763,099 km (0.036 R)
• M3: 961,765 km (0.081 R)
• M4: 2,600,609 km (0.108 R)
• M5: 2,889,184 km (0.067 R)
• M6: 3,377,022 km (0.093 R)
• M7: 4,226,589 km (0.113 R)
• M8: 4,738,961 km (0.064 R)
• M9: 4,970,838 km (0.084 R)
• M10: 5,583,741 km (0.098 R)
• M11: 6,109,278 km (0.092 R)
• M12: 6,524,562 km (0.101 R)
• M13: 9,181,719 km (0.109 R)
• M14: 12,121,467 km (0.036 R)
• M15: 12,999,905 km (0.071 R)
• M16: 13,378,089 km (0.117 R)
• M17: 13,685,961 km (0.119 R)
• M18: 15,803,519 km (0.109 R)
• M19: 16,940,014 km (0.109 R)
• M20: 17,943,367 km (0.088 R)
• M21: 18,506,902 km (0.095 R)
• M22: 20,777,199 km (0.113 R)
• M23: 21,294,210 km (0.098 R)
• M24: 28,309,303 km (0.084 R)
• M25: 33,943,607 km (0.083 R)
• M26: 37,022,032 km (0.04 R)
• M27: 37,934,579 km (0.028 R)
• M28: 38,242,003 km (0.102 R)
• M29: 38,861,936 km (0.111 R)
• M30: 39,017,967 km (0.038 R)
• M31: 46,832,361 km (0.117 R)
• M32: 51,384,774 km (0.092 R)
• M33: 65,240,978 km (0.115 R)
• M34: 68,372,660 km (0.108 R)
• M35: 69,744,921 km (0.109 R)
• M36: 70,902,360 km (0.12 R)
• M37: 80,880,986 km (0.066 R)
• M38: 85,542,456 km (0.104 R)
• M39: 86,336,372 km (0.05 R)
• M40: 87,135,225 km (0.07 R)
• M41: 92,865,571 km (0.085 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 311 - 19,895 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit