🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.9

Radius: 14.7

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.53 AU - 0.87 AU

Year: 378 Days

Day: 7.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,698,217 km

• M1: 183,407 km (0.101 R)
• M2: 667,805 km (0.107 R)
• M3: 1,246,300 km (0.06 R)
• M4: 1,738,776 km (0.117 R)
• M5: 2,290,194 km (0.113 R)
• M6: 3,281,728 km (0.082 R)
• M7: 3,777,795 km (0.119 R)
• M8: 4,400,870 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.3

Radius: 12.7

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.59 AU - 0.87 AU

Year: 403 Days

Day: 13.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 21,698,217 km

• M1: 157,975 km (0.069 R)
• M2: 574,905 km (0.097 R)
• M3: 1,050,775 km (0.115 R)
• M4: 1,608,327 km (0.113 R)
• M5: 2,159,296 km (0.116 R)
• M6: 3,114,777 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673

Radius: 11.8

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.31 AU - 1.55 AU

Year: 1104 Days

Day: 10.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,698,217 km

• M1: 149,149 km (0.079 R)
• M2: 634,893 km (0.063 R)
• M3: 1,081,144 km (0.061 R)
• M4: 2,193,105 km (0.118 R)
• M5: 2,590,736 km (0.093 R)
• M6: 3,430,279 km (0.077 R)
• M7: 4,584,876 km (0.107 R)
• M8: 5,380,886 km (0.065 R)
• M9: 6,378,404 km (0.085 R)
• M10: 6,981,134 km (0.088 R)
• M11: 8,462,901 km (0.07 R)
• M12: 10,393,162 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.9

Radius: 14

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.41 AU - 2.11 AU

Year: 1508 Days

Day: 9.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,698,217 km

• M1: 186,100 km (0.114 R)
• M2: 980,913 km (0.04 R)
• M3: 1,757,177 km (0.06 R)
• M4: 2,258,479 km (0.033 R)
• M5: 3,581,672 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.4

Radius: 13.6

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.83 AU - 2.69 AU

Year: 2194 Days

Day: 13.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 21,698,217 km

• M1: 169,195 km (0.115 R)
• M2: 593,156 km (0.099 R)
• M3: 1,088,624 km (0.08 R)
• M4: 1,520,513 km (0.084 R)
• M5: 2,504,418 km (0.12 R)
• M6: 3,048,356 km (0.094 R)
• M7: 3,507,472 km (0.052 R)
• M8: 4,631,999 km (0.106 R)
• M9: 5,219,320 km (0.099 R)
• M10: 5,830,577 km (0.112 R)
• M11: 7,051,595 km (0.108 R)
• M12: 7,676,914 km (0.114 R)
• M13: 9,280,753 km (0.097 R)
• M14: 10,292,334 km (0.062 R)
• M15: 11,617,920 km (0.119 R)
• M16: 13,010,676 km (0.092 R)
• M17: 13,999,219 km (0.106 R)
• M18: 14,749,153 km (0.11 R)
• M19: 15,624,750 km (0.097 R)
• M20: 16,125,902 km (0.1 R)
• M21: 16,689,587 km (0.109 R)
• M22: 17,910,904 km (0.105 R)
• M23: 18,404,727 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.9

Radius: 9

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.46 AU - 2.94 AU

Year: 2865 Days

Day: 9.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,698,217 km

• M1: 111,899 km (0.1 R)
• M2: 435,031 km (0.11 R)
• M3: 727,195 km (0.089 R)
• M4: 1,134,849 km (0.077 R)
• M5: 1,662,332 km (0.114 R)
• M6: 2,458,940 km (0.053 R)
• M7: 3,555,941 km (0.115 R)
• M8: 3,950,431 km (0.095 R)
• M9: 7,093,632 km (0.062 R)
• M10: 9,084,630 km (0.104 R)
• M11: 9,562,445 km (0.112 R)
• M12: 11,385,894 km (0.109 R)
• M13: 12,670,940 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.3

Radius: 13.7

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.84 AU - 3.56 AU

Year: 3696 Days

Day: 9.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,698,217 km

• M1: 170,691 km (0.051 R)
• M2: 681,717 km (0.096 R)
• M3: 1,787,695 km (0.083 R)
• M4: 2,527,755 km (0.067 R)
• M5: 2,961,739 km (0.079 R)
• M6: 3,560,579 km (0.04 R)
• M7: 4,371,998 km (0.081 R)
• M8: 4,858,041 km (0.069 R)
• M9: 5,303,394 km (0.065 R)
• M10: 5,967,609 km (0.083 R)
• M11: 6,746,565 km (0.083 R)
• M12: 10,517,927 km (0.111 R)
• M13: 14,628,428 km (0.116 R)
• M14: 18,133,057 km (0.061 R)
• M15: 20,587,809 km (0.077 R)
• M16: 21,961,566 km (0.028 R)
• M17: 22,773,583 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.5

Radius: 10.7

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 4.19 AU - 5.91 AU

Year: 7327 Days

Day: 5.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,698,217 km

• M1: 133,142 km (0.103 R)
• M2: 617,390 km (0.104 R)
• M3: 1,169,107 km (0.101 R)
• M4: 1,511,986 km (0.064 R)
• M5: 2,264,014 km (0.081 R)
• M6: 3,377,471 km (0.102 R)
• M7: 4,072,802 km (0.101 R)
• M8: 6,374,365 km (0.097 R)
• M9: 6,926,830 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441.4

Radius: 7.4

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 5.52 AU - 9 AU

Year: 12630 Days

Day: 18.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,698,217 km

• M1: 92,003 km (0.096 R)
• M2: 526,585 km (0.094 R)
• M3: 2,288,847 km (0.11 R)
• M4: 2,762,474 km (0.114 R)
• M5: 3,067,804 km (0.117 R)
• M6: 3,543,076 km (0.107 R)
• M7: 4,978,019 km (0.12 R)
• M8: 6,347,438 km (0.119 R)
• M9: 7,779,837 km (0.11 R)
• M10: 9,561,548 km (0.111 R)
• M11: 15,408,281 km (0.115 R)
• M12: 15,679,353 km (0.073 R)
• M13: 18,721,276 km (0.108 R)
• M14: 20,707,188 km (0.068 R)
• M15: 22,135,099 km (0.034 R)
• M16: 23,627,637 km (0.066 R)
• M17: 24,352,589 km (0.064 R)
• M18: 26,909,366 km (0.088 R)
• M19: 27,600,358 km (0.114 R)
• M20: 32,438,353 km (0.111 R)
• M21: 34,360,537 km (0.092 R)
• M22: 44,432,363 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.9

Radius: 6.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 6.87 AU - 9.89 AU

Year: 15663 Days

Day: 16.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,698,217 km

• M1: 80,633 km (0.076 R)
• M2: 349,610 km (0.095 R)
• M3: 686,953 km (0.07 R)
• M4: 914,342 km (0.119 R)
• M5: 1,156,990 km (0.117 R)
• M6: 1,624,782 km (0.108 R)
• M7: 13,030,872 km (0.097 R)
• M8: 13,974,685 km (0.064 R)
• M9: 21,504,245 km (0.116 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 18,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit