🌌 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: 229

Radius: 9.4

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.66 AU - 0.68 AU

Year: 372 Days

Day: 8.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,817,412 km

• M1: 116,986 km (0.109 R)
• M2: 410,347 km (0.07 R)
• M3: 854,204 km (0.092 R)
• M4: 1,149,061 km (0.065 R)
• M5: 1,513,482 km (0.107 R)
• M6: 2,103,645 km (0.066 R)
• M7: 2,400,447 km (0.093 R)
• M8: 2,795,535 km (0.12 R)
• M9: 3,312,994 km (0.102 R)
• M10: 3,696,264 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.3

Radius: 9.4

Gravity: 9.42 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.73 AU - 0.95 AU

Year: 522 Days

Day: 13.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,817,412 km

• M1: 117,135 km (0.075 R)
• M2: 420,819 km (0.082 R)
• M3: 715,676 km (0.095 R)
• M4: 1,065,885 km (0.089 R)
• M5: 1,418,487 km (0.102 R)
• M6: 1,800,111 km (0.117 R)
• M7: 2,278,525 km (0.115 R)
• M8: 2,611,380 km (0.114 R)
• M9: 3,202,292 km (0.049 R)
• M10: 4,681,815 km (0.083 R)
• M11: 5,361,288 km (0.091 R)
• M12: 5,806,941 km (0.026 R)
• M13: 7,082,562 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.3

Radius: 8.6

Gravity: 9.56 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.71 AU - 1.19 AU

Year: 628 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,817,412 km

• M1: 108,010 km (0.083 R)
• M2: 634,744 km (0.103 R)
• M3: 1,061,846 km (0.07 R)
• M4: 1,369,569 km (0.094 R)
• M5: 1,786,647 km (0.119 R)
• M6: 2,316,523 km (0.071 R)
• M7: 2,662,693 km (0.094 R)
• M8: 3,579,578 km (0.12 R)
• M9: 4,015,057 km (0.105 R)
• M10: 4,453,828 km (0.088 R)
• M11: 5,111,460 km (0.066 R)
• M12: 7,145,692 km (0.112 R)
• M13: 7,519,537 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262

Radius: 9

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.02 AU - 1.08 AU

Year: 730 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 85,817,412 km

• M1: 112,348 km (0.066 R)
• M2: 903,122 km (0.112 R)
• M3: 1,263,653 km (0.099 R)
• M4: 3,177,010 km (0.098 R)
• M5: 3,998,751 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.6

Radius: 13

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 4.14 AU - 4.14 AU

Year: 5713 Days

Day: 7.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,817,412 km

• M1: 161,865 km (0.104 R)
• M2: 711,039 km (0.089 R)
• M3: 2,214,946 km (0.085 R)
• M4: 2,914,167 km (0.083 R)
• M5: 3,445,538 km (0.093 R)
• M6: 4,041,237 km (0.061 R)
• M7: 5,089,768 km (0.064 R)
• M8: 5,778,367 km (0.043 R)
• M9: 6,654,263 km (0.093 R)
• M10: 7,140,905 km (0.029 R)
• M11: 7,581,919 km (0.119 R)
• M12: 8,149,793 km (0.119 R)
• M13: 9,451,145 km (0.119 R)
• M14: 10,109,525 km (0.104 R)
• M15: 10,886,536 km (0.103 R)
• M16: 12,657,775 km (0.116 R)
• M17: 13,715,282 km (0.102 R)
• M18: 14,133,408 km (0.112 R)
• M19: 14,776,530 km (0.086 R)
• M20: 18,478,479 km (0.11 R)
• M21: 20,105,206 km (0.052 R)
• M22: 23,567,499 km (0.099 R)
• M23: 25,010,969 km (0.103 R)
• M24: 26,432,149 km (0.057 R)
• M25: 28,073,536 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.8

Radius: 7.4

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 8.56 AU - 8.96 AU

Year: 17585 Days

Day: 19.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,817,412 km

• M1: 137,780 km (0.096 R)
• M2: 429,047 km (0.106 R)
• M3: 907,461 km (0.118 R)
• M4: 1,239,718 km (0.06 R)
• M5: 2,264,164 km (0.079 R)
• M6: 4,073,999 km (0.113 R)
• M7: 5,154,694 km (0.089 R)
• M8: 7,532,702 km (0.06 R)
• M9: 9,105,574 km (0.097 R)
• M10: 11,027,906 km (0.092 R)
• M11: 12,058,636 km (0.075 R)
• M12: 12,519,547 km (0.098 R)
• M13: 13,422,071 km (0.069 R)
• M14: 16,265,627 km (0.081 R)
• M15: 16,639,322 km (0.072 R)
• M16: 17,926,462 km (0.114 R)
• M17: 20,050,752 km (0.07 R)
• M18: 20,552,803 km (0.095 R)
• M19: 27,509,403 km (0.096 R)
• M20: 32,632,083 km (0.078 R)
• M21: 33,027,769 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.9

Radius: 7.2

Gravity: 18.4 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.05 AU - 11.23 AU

Year: 20301 Days

Day: 23.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,817,412 km

• M1: 95,443 km (0.116 R)
• M2: 734,974 km (0.103 R)
• M3: 1,027,438 km (0.109 R)
• M4: 1,527,843 km (0.12 R)
• M5: 2,951,716 km (0.07 R)
• M6: 4,056,047 km (0.119 R)
• M7: 4,868,214 km (0.097 R)
• M8: 6,395,758 km (0.106 R)
• M9: 8,164,753 km (0.1 R)
• M10: 11,261,877 km (0.094 R)
• M11: 13,143,669 km (0.1 R)
• M12: 13,513,774 km (0.11 R)
• M13: 14,043,650 km (0.081 R)
• M14: 17,785,990 km (0.114 R)
• M15: 19,933,467 km (0.092 R)
• M16: 20,422,204 km (0.079 R)
• M17: 21,936,433 km (0.036 R)
• M18: 22,352,615 km (0.035 R)
• M19: 25,300,291 km (0.07 R)
• M20: 27,283,660 km (0.104 R)
• M21: 31,163,032 km (0.113 R)
• M22: 31,821,412 km (0.096 R)
• M23: 36,546,161 km (0.103 R)
• M24: 49,107,595 km (0.12 R)
• M25: 60,118,448 km (0.115 R)
• M26: 68,823,099 km (0.047 R)
• M27: 82,017,182 km (0.114 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 19,687 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit