🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.4

Radius: 10.8

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.55 AU - 0.91 AU

Year: 423 Days

Day: 10.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,229,258 km

• M1: 134,638 km (0.069 R)
• M2: 473,776 km (0.119 R)
• M3: 1,038,957 km (0.116 R)
• M4: 1,447,958 km (0.093 R)
• M5: 1,810,433 km (0.071 R)
• M6: 2,259,077 km (0.105 R)
• M7: 2,667,031 km (0.079 R)
• M8: 3,041,026 km (0.095 R)
• M9: 3,540,832 km (0.105 R)
• M10: 3,981,996 km (0.1 R)
• M11: 4,340,133 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.3

Radius: 15

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.79 AU - 0.93 AU

Year: 541 Days

Day: 8.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 73,229,258 km

• M1: 219,610 km (0.078 R)
• M2: 957,277 km (0.084 R)
• M3: 2,040,365 km (0.118 R)
• M4: 2,605,546 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.6

Radius: 10

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.81 AU - 1.09 AU

Year: 628 Days

Day: 13.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 73,229,258 km

• M1: 126,560 km (0.119 R)
• M2: 470,186 km (0.106 R)
• M3: 808,576 km (0.085 R)
• M4: 1,882,988 km (0.1 R)
• M5: 2,422,887 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.8

Radius: 8.9

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.02 AU - 1.4 AU

Year: 903 Days

Day: 10.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,229,258 km

• M1: 110,852 km (0.088 R)
• M2: 399,576 km (0.087 R)
• M3: 679,174 km (0.101 R)
• M4: 1,060,799 km (0.048 R)
• M5: 1,394,701 km (0.11 R)
• M6: 1,853,518 km (0.066 R)
• M7: 2,355,568 km (0.102 R)
• M8: 2,932,866 km (0.091 R)
• M9: 3,400,958 km (0.119 R)
• M10: 3,810,557 km (0.099 R)
• M11: 4,107,060 km (0.093 R)
• M12: 4,980,263 km (0.098 R)
• M13: 5,335,558 km (0.11 R)
• M14: 6,416,851 km (0.086 R)
• M15: 6,952,112 km (0.076 R)
• M16: 7,254,150 km (0.072 R)
• M17: 7,565,015 km (0.083 R)
• M18: 9,007,437 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837

Radius: 9.4

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.02 AU - 1.4 AU

Year: 903 Days

Day: 7.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,229,258 km

• M1: 116,836 km (0.098 R)
• M2: 447,896 km (0.092 R)
• M3: 789,129 km (0.119 R)
• M4: 1,517,670 km (0.095 R)
• M5: 2,221,528 km (0.047 R)
• M6: 3,350,992 km (0.083 R)
• M7: 3,689,383 km (0.088 R)
• M8: 4,418,074 km (0.118 R)
• M9: 4,844,428 km (0.118 R)
• M10: 5,738,275 km (0.088 R)
• M11: 6,159,842 km (0.119 R)
• M12: 6,534,136 km (0.084 R)
• M13: 7,232,010 km (0.047 R)
• M14: 7,799,883 km (0.047 R)
• M15: 8,159,965 km (0.063 R)
• M16: 8,531,118 km (0.089 R)
• M17: 8,941,315 km (0.067 R)
• M18: 9,654,149 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.3

Radius: 8

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.03 AU - 2.19 AU

Year: 2079 Days

Day: 9.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,229,258 km

• M1: 131,497 km (0.084 R)
• M2: 406,308 km (0.103 R)
• M3: 717,920 km (0.055 R)
• M4: 1,057,059 km (0.097 R)
• M5: 1,394,701 km (0.114 R)
• M6: 1,656,348 km (0.073 R)
• M7: 2,076,418 km (0.117 R)
• M8: 2,354,970 km (0.104 R)
• M9: 2,801,819 km (0.093 R)
• M10: 3,223,086 km (0.111 R)
• M11: 3,526,919 km (0.098 R)
• M12: 4,097,037 km (0.059 R)
• M13: 4,657,879 km (0.078 R)
• M14: 5,496,974 km (0.118 R)
• M15: 6,433,157 km (0.078 R)
• M16: 7,306,958 km (0.071 R)
• M17: 8,257,503 km (0.076 R)
• M18: 8,539,944 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466

Radius: 8.6

Gravity: 6.3 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.39 AU - 3.69 AU

Year: 4517 Days

Day: 13.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,229,258 km

• M1: 106,962 km (0.109 R)
• M2: 526,435 km (0.116 R)
• M3: 1,606,980 km (0.025 R)
• M4: 2,284,659 km (0.066 R)
• M5: 3,765,378 km (0.087 R)
• M6: 4,470,134 km (0.102 R)
• M7: 6,524,711 km (0.066 R)
• M8: 7,673,473 km (0.103 R)
• M9: 9,102,282 km (0.086 R)
• M10: 9,799,857 km (0.08 R)
• M11: 10,700,287 km (0.094 R)
• M12: 11,477,298 km (0.113 R)
• M13: 11,879,567 km (0.117 R)
• M14: 12,153,032 km (0.11 R)
• M15: 14,494,238 km (0.082 R)
• M16: 15,230,110 km (0.068 R)
• M17: 15,935,614 km (0.117 R)
• M18: 18,729,803 km (0.091 R)
• M19: 19,100,507 km (0.112 R)
• M20: 20,830,157 km (0.117 R)
• M21: 23,366,290 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.6

Radius: 12.3

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.66 AU - 4.43 AU

Year: 4517 Days

Day: 5.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,229,258 km

• M1: 153,487 km (0.111 R)
• M2: 587,620 km (0.047 R)
• M3: 1,551,180 km (0.102 R)
• M4: 1,972,747 km (0.107 R)
• M5: 2,456,995 km (0.07 R)
• M6: 2,937,055 km (0.107 R)
• M7: 4,256,807 km (0.085 R)
• M8: 6,211,453 km (0.091 R)
• M9: 7,543,622 km (0.102 R)
• M10: 8,395,582 km (0.107 R)
• M11: 9,022,248 km (0.098 R)
• M12: 10,330,032 km (0.082 R)
• M13: 11,214,455 km (0.032 R)
• M14: 12,061,777 km (0.112 R)
• M15: 14,612,421 km (0.066 R)
• M16: 15,520,181 km (0.091 R)
• M17: 16,358,078 km (0.111 R)
• M18: 19,530,301 km (0.044 R)
• M19: 20,693,873 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.5

Radius: 9.4

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.94 AU - 4.92 AU

Year: 6324 Days

Day: 14.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,229,258 km

• M1: 136,134 km (0.103 R)
• M2: 486,043 km (0.093 R)
• M3: 801,994 km (0.096 R)
• M4: 1,271,731 km (0.03 R)
• M5: 1,859,352 km (0.063 R)
• M6: 2,455,649 km (0.11 R)
• M7: 2,927,032 km (0.082 R)
• M8: 3,977,209 km (0.114 R)
• M9: 4,938,375 km (0.057 R)
• M10: 6,590,085 km (0.087 R)
• M11: 7,970,275 km (0.034 R)
• M12: 8,707,344 km (0.081 R)
• M13: 10,699,988 km (0.108 R)
• M14: 11,443,938 km (0.096 R)
• M15: 13,145,614 km (0.106 R)
• M16: 14,767,554 km (0.107 R)
• M17: 15,316,129 km (0.071 R)
• M18: 15,689,376 km (0.101 R)
• M19: 16,005,027 km (0.088 R)
• M20: 16,845,618 km (0.067 R)
• M21: 20,504,333 km (0.101 R)
• M22: 21,341,034 km (0.113 R)
• M23: 22,121,187 km (0.095 R)
• M24: 22,438,633 km (0.098 R)
• M25: 27,571,636 km (0.036 R)
• M26: 34,276,762 km (0.058 R)
• M27: 35,454,546 km (0.077 R)
• M28: 35,889,427 km (0.047 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 571.1

Radius: 4.3

Gravity: 30.89 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 8.23 AU - 11.29 AU

Year: 20681 Days

Day: 23.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 73,229,258 km

• M1: 53,556 km (0.087 R)
• M2: 459,265 km (0.079 R)
• M3: 1,252,583 km (0.068 R)
• M4: 1,989,951 km (0.095 R)
• M5: 2,191,459 km (0.1 R)
• M6: 2,340,608 km (0.103 R)
• M7: 2,854,178 km (0.088 R)
• M8: 3,790,212 km (0.098 R)
• M9: 4,327,717 km (0.065 R)
• M10: 4,701,711 km (0.078 R)
• M11: 4,842,932 km (0.062 R)
• M12: 6,855,921 km (0.092 R)
• M13: 9,091,063 km (0.111 R)
• M14: 13,251,679 km (0.104 R)
• M15: 14,110,520 km (0.102 R)
• M16: 14,330,878 km (0.073 R)
• M17: 16,909,197 km (0.111 R)
• M18: 18,263,806 km (0.108 R)
• M19: 18,525,602 km (0.113 R)
• M20: 19,236,042 km (0.026 R)
• M21: 24,618,723 km (0.112 R)
• M22: 24,831,451 km (0.101 R)
• M23: 28,286,713 km (0.099 R)
• M24: 29,227,834 km (0.115 R)
• M25: 30,801,154 km (0.108 R)
• M26: 31,546,002 km (0.099 R)
• M27: 34,115,645 km (0.111 R)
• M28: 35,451,255 km (0.063 R)
• M29: 36,821,422 km (0.066 R)
• M30: 38,226,295 km (0.057 R)
• M31: 46,273,464 km (0.108 R)
• M32: 49,581,521 km (0.097 R)
• M33: 50,432,434 km (0.061 R)
• M34: 57,406,986 km (0.109 R)
• M35: 61,611,285 km (0.099 R)
• M36: 67,668,652 km (0.095 R)
• M37: 70,198,651 km (0.042 R)
• M38: 72,354,656 km (0.096 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 12,603 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit