🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.9

Radius: 12.8

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.57 AU - 0.77 AU

Year: 366 Days

Day: 5.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,355,029 km

• M1: 159,172 km (0.102 R)
• M2: 641,027 km (0.077 R)
• M3: 1,132,456 km (0.12 R)
• M4: 1,932,804 km (0.116 R)
• M5: 2,450,862 km (0.111 R)
• M6: 2,902,049 km (0.114 R)
• M7: 3,538,887 km (0.105 R)
• M8: 3,974,815 km (0.059 R)
• M9: 4,559,893 km (0.097 R)
• M10: 5,170,701 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.1

Radius: 8.9

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.5 AU - 1.64 AU

Year: 1312 Days

Day: 6.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,355,029 km

• M1: 111,002 km (0.105 R)
• M2: 401,670 km (0.085 R)
• M3: 931,097 km (0.114 R)
• M4: 1,209,050 km (0.111 R)
• M5: 1,939,985 km (0.094 R)
• M6: 2,756,640 km (0.028 R)
• M7: 3,116,273 km (0.079 R)
• M8: 3,598,577 km (0.108 R)
• M9: 5,614,558 km (0.106 R)
• M10: 5,953,995 km (0.079 R)
• M11: 6,397,553 km (0.045 R)
• M12: 7,732,116 km (0.086 R)
• M13: 8,644,663 km (0.037 R)
• M14: 9,507,992 km (0.106 R)
• M15: 9,930,007 km (0.039 R)
• M16: 11,105,847 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.6

Radius: 10.6

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.56 AU - 2.08 AU

Year: 1637 Days

Day: 13.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,355,029 km

• M1: 132,245 km (0.041 R)
• M2: 534,663 km (0.066 R)
• M3: 1,018,014 km (0.052 R)
• M4: 1,390,512 km (0.113 R)
• M5: 1,968,259 km (0.064 R)
• M6: 2,421,840 km (0.118 R)
• M7: 2,807,054 km (0.093 R)
• M8: 4,325,024 km (0.086 R)
• M9: 5,036,362 km (0.043 R)
• M10: 5,690,853 km (0.113 R)
• M11: 7,169,628 km (0.095 R)
• M12: 8,624,317 km (0.077 R)
• M13: 9,160,476 km (0.116 R)
• M14: 11,319,173 km (0.056 R)
• M15: 11,817,334 km (0.062 R)
• M16: 12,781,492 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.3

Radius: 12.2

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.52 AU - 2.22 AU

Year: 1705 Days

Day: 5.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,355,029 km

• M1: 153,487 km (0.073 R)
• M2: 624,122 km (0.079 R)
• M3: 1,026,541 km (0.088 R)
• M4: 1,459,028 km (0.057 R)
• M5: 2,061,010 km (0.082 R)
• M6: 2,555,132 km (0.048 R)
• M7: 3,159,657 km (0.096 R)
• M8: 3,931,282 km (0.117 R)
• M9: 5,308,480 km (0.057 R)
• M10: 6,195,446 km (0.108 R)
• M11: 7,781,632 km (0.097 R)
• M12: 8,355,789 km (0.117 R)
• M13: 9,286,737 km (0.052 R)
• M14: 10,393,013 km (0.094 R)
• M15: 11,623,605 km (0.093 R)
• M16: 12,618,880 km (0.072 R)
• M17: 13,583,935 km (0.12 R)
• M18: 14,239,473 km (0.107 R)
• M19: 15,146,186 km (0.087 R)
• M20: 15,613,679 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.5

Radius: 11.6

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.83 AU - 1.93 AU

Year: 1719 Days

Day: 12.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 114.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,355,029 km

• M1: 144,362 km (0.058 R)
• M2: 719,416 km (0.111 R)
• M3: 1,099,245 km (0.11 R)
• M4: 1,516,474 km (0.089 R)
• M5: 2,345,695 km (0.053 R)
• M6: 2,764,868 km (0.098 R)
• M7: 3,327,805 km (0.075 R)
• M8: 4,019,994 km (0.048 R)
• M9: 4,546,130 km (0.095 R)
• M10: 5,487,848 km (0.074 R)
• M11: 5,876,055 km (0.054 R)
• M12: 6,682,088 km (0.078 R)
• M13: 7,560,377 km (0.113 R)
• M14: 8,544,133 km (0.075 R)
• M15: 9,193,088 km (0.07 R)
• M16: 9,709,500 km (0.036 R)
• M17: 12,392,538 km (0.119 R)
• M18: 13,675,340 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.2

Radius: 12.3

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.57 AU - 3.13 AU

Year: 3208 Days

Day: 8.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,355,029 km

• M1: 153,039 km (0.057 R)
• M2: 573,109 km (0.081 R)
• M3: 1,116,599 km (0.105 R)
• M4: 1,639,742 km (0.094 R)
• M5: 2,098,409 km (0.11 R)
• M6: 2,553,187 km (0.11 R)
• M7: 3,193,017 km (0.072 R)
• M8: 3,683,698 km (0.072 R)
• M9: 4,481,503 km (0.105 R)
• M10: 5,292,623 km (0.059 R)
• M11: 5,956,688 km (0.106 R)
• M12: 6,448,416 km (0.059 R)
• M13: 7,146,290 km (0.038 R)
• M14: 8,935,780 km (0.113 R)
• M15: 9,953,943 km (0.037 R)
• M16: 10,727,215 km (0.116 R)
• M17: 12,220,052 km (0.089 R)
• M18: 13,016,361 km (0.063 R)
• M19: 13,706,157 km (0.091 R)
• M20: 20,620,570 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383.3

Radius: 3.1

Gravity: 39.89 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.25 AU - 7.55 AU

Year: 10797 Days

Day: 17.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,355,029 km

• M1: 40,691 km (0.118 R)
• M2: 202,406 km (0.053 R)
• M3: 360,980 km (0.11 R)
• M4: 679,773 km (0.039 R)
• M5: 940,522 km (0.04 R)
• M6: 1,714,541 km (0.115 R)
• M7: 2,281,667 km (0.075 R)
• M8: 2,408,675 km (0.082 R)
• M9: 3,528,415 km (0.092 R)
• M10: 3,950,730 km (0.116 R)
• M11: 4,241,399 km (0.114 R)
• M12: 4,894,842 km (0.059 R)
• M13: 5,198,975 km (0.064 R)
• M14: 5,612,912 km (0.075 R)
• M15: 8,611,751 km (0.065 R)
• M16: 9,189,947 km (0.058 R)
• M17: 12,473,919 km (0.098 R)
• M18: 13,039,848 km (0.072 R)
• M19: 18,054,967 km (0.072 R)
• M20: 27,293,084 km (0.112 R)
• M21: 28,052,742 km (0.077 R)
• M22: 28,924,150 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 449.7

Radius: 7.2

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.1 AU - 10.98 AU

Year: 19650 Days

Day: 19.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,355,029 km

• M1: 97,687 km (0.117 R)
• M2: 958,324 km (0.071 R)
• M3: 1,799,363 km (0.055 R)
• M4: 2,071,781 km (0.109 R)
• M5: 2,392,668 km (0.117 R)
• M6: 4,959,618 km (0.115 R)
• M7: 5,278,561 km (0.092 R)
• M8: 5,802,153 km (0.106 R)
• M9: 10,366,534 km (0.114 R)
• M10: 17,440,269 km (0.118 R)
• M11: 18,013,080 km (0.107 R)
• M12: 35,031,782 km (0.093 R)
• M13: 46,410,495 km (0.097 R)
• M14: 47,351,616 km (0.106 R)
• M15: 49,596,780 km (0.057 R)
• M16: 56,578,363 km (0.104 R)
• M17: 57,832,293 km (0.106 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: 300 - 12,626 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit