🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.41 AU - 0.65 AU

Year: 253 Days

Day: 39.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 15.7 °

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: 270.2

Radius: 11.2

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.56 AU - 0.86 AU

Year: 392 Days

Day: 9.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 76.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,097,929 km

• M1: 139,276 km (0.107 R)
• M2: 508,633 km (0.106 R)
• M3: 940,372 km (0.114 R)
• M4: 1,478,177 km (0.116 R)
• M5: 2,381,000 km (0.105 R)
• M6: 2,729,862 km (0.077 R)
• M7: 3,364,456 km (0.075 R)
• M8: 3,717,357 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.6

Radius: 8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.69 AU - 1.07 AU

Year: 542 Days

Day: 9.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,097,929 km

• M1: 99,782 km (0.066 R)
• M2: 466,147 km (0.064 R)
• M3: 728,093 km (0.105 R)
• M4: 1,054,216 km (0.038 R)
• M5: 1,311,973 km (0.091 R)
• M6: 1,789,939 km (0.083 R)
• M7: 2,346,143 km (0.078 R)
• M8: 2,655,961 km (0.116 R)
• M9: 3,799,487 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.3

Radius: 10.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.23 AU - 1.39 AU

Year: 984 Days

Day: 11.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,097,929 km

• M1: 129,402 km (0.114 R)
• M2: 487,988 km (0.116 R)
• M3: 1,063,192 km (0.069 R)
• M4: 1,474,437 km (0.076 R)
• M5: 1,973,495 km (0.093 R)
• M6: 2,329,089 km (0.089 R)
• M7: 2,693,958 km (0.107 R)
• M8: 3,022,924 km (0.108 R)
• M9: 3,392,132 km (0.089 R)
• M10: 3,720,499 km (0.053 R)
• M11: 4,145,656 km (0.118 R)
• M12: 4,603,276 km (0.118 R)
• M13: 5,164,717 km (0.096 R)
• M14: 6,101,948 km (0.082 R)
• M15: 7,997,652 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.3

Radius: 8.9

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.48 AU - 2.62 AU

Year: 2671 Days

Day: 9 Hours

Environment

Temp: -207 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,097,929 km

• M1: 113,994 km (0.095 R)
• M2: 446,101 km (0.087 R)
• M3: 755,020 km (0.053 R)
• M4: 1,059,751 km (0.108 R)
• M5: 1,468,453 km (0.08 R)
• M6: 1,797,418 km (0.109 R)
• M7: 2,384,291 km (0.096 R)
• M8: 2,991,509 km (0.072 R)
• M9: 3,816,242 km (0.067 R)
• M10: 4,101,824 km (0.071 R)
• M11: 5,045,338 km (0.117 R)
• M12: 5,390,011 km (0.119 R)
• M13: 5,724,213 km (0.092 R)
• M14: 6,017,724 km (0.103 R)
• M15: 6,548,497 km (0.025 R)
• M16: 7,263,126 km (0.066 R)
• M17: 8,953,433 km (0.111 R)
• M18: 10,023,805 km (0.118 R)
• M19: 11,510,509 km (0.119 R)
• M20: 12,109,648 km (0.066 R)
• M21: 12,819,640 km (0.053 R)
• M22: 13,888,517 km (0.114 R)
• M23: 14,469,256 km (0.119 R)
• M24: 16,308,861 km (0.08 R)
• M25: 16,846,366 km (0.068 R)
• M26: 18,879,700 km (0.034 R)
• M27: 20,016,195 km (0.095 R)
• M28: 20,508,222 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.7

Radius: 14

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.83 AU - 4.23 AU

Year: 5307 Days

Day: 14.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,097,929 km

• M1: 174,132 km (0.116 R)
• M2: 676,033 km (0.081 R)
• M3: 1,187,807 km (0.048 R)
• M4: 1,857,856 km (0.084 R)
• M5: 2,581,311 km (0.08 R)
• M6: 3,062,418 km (0.103 R)
• M7: 3,688,635 km (0.059 R)
• M8: 4,265,334 km (0.116 R)
• M9: 5,092,012 km (0.097 R)
• M10: 5,951,452 km (0.095 R)
• M11: 6,391,270 km (0.075 R)
• M12: 7,281,826 km (0.106 R)
• M13: 9,704,264 km (0.09 R)
• M14: 13,065,280 km (0.101 R)
• M15: 13,769,736 km (0.061 R)
• M16: 14,586,989 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.4

Radius: 11.5

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.11 AU - 4.13 AU

Year: 5486 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,097,929 km

• M1: 143,016 km (0.077 R)
• M2: 512,971 km (0.097 R)
• M3: 1,154,297 km (0.099 R)
• M4: 1,588,879 km (0.091 R)
• M5: 2,000,572 km (0.093 R)
• M6: 3,406,942 km (0.08 R)
• M7: 3,867,404 km (0.115 R)
• M8: 4,520,399 km (0.096 R)
• M9: 4,941,218 km (0.107 R)
• M10: 5,533,326 km (0.081 R)
• M11: 5,892,511 km (0.1 R)
• M12: 7,275,094 km (0.119 R)
• M13: 7,633,979 km (0.108 R)
• M14: 8,194,672 km (0.117 R)
• M15: 9,738,672 km (0.094 R)
• M16: 10,855,121 km (0.095 R)
• M17: 11,710,372 km (0.115 R)
• M18: 12,610,053 km (0.032 R)
• M19: 13,717,227 km (0.093 R)
• M20: 14,603,445 km (0.075 R)
• M21: 16,428,689 km (0.106 R)
• M22: 17,048,622 km (0.074 R)
• M23: 17,877,843 km (0.051 R)
• M24: 23,195,599 km (0.03 R)
• M25: 23,661,895 km (0.066 R)
• M26: 24,452,819 km (0.093 R)
• M27: 25,343,076 km (0.119 R)
• M28: 26,087,475 km (0.069 R)
• M29: 27,274,235 km (0.112 R)
• M30: 28,585,460 km (0.082 R)
• M31: 29,121,469 km (0.116 R)
• M32: 29,755,465 km (0.059 R)
• M33: 30,583,938 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.3

Radius: 12.3

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.96 AU - 5.08 AU

Year: 7378 Days

Day: 12.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,097,929 km

• M1: 248,033 km (0.088 R)
• M2: 2,160,792 km (0.106 R)
• M3: 3,648,094 km (0.101 R)
• M4: 4,184,851 km (0.119 R)
• M5: 5,908,518 km (0.109 R)
• M6: 8,900,625 km (0.101 R)
• M7: 9,299,303 km (0.076 R)
• M8: 11,244,075 km (0.07 R)
• M9: 11,996,852 km (0.102 R)
• M10: 16,872,396 km (0.102 R)
• M11: 17,546,933 km (0.042 R)
• M12: 17,985,404 km (0.032 R)
• M13: 23,987,420 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.6

Radius: 5.5

Gravity: 29.08 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.68 AU - 7.86 AU

Year: 14208 Days

Day: 21.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 84,097,929 km

• M1: 68,366 km (0.107 R)
• M2: 348,114 km (0.116 R)
• M3: 526,734 km (0.062 R)
• M4: 858,243 km (0.108 R)
• M5: 1,197,980 km (0.115 R)
• M6: 1,421,479 km (0.092 R)
• M7: 1,623,436 km (0.115 R)
• M8: 2,163,784 km (0.107 R)
• M9: 2,497,237 km (0.104 R)
• M10: 2,792,992 km (0.077 R)
• M11: 3,373,282 km (0.041 R)
• M12: 3,880,868 km (0.056 R)
• M13: 4,373,494 km (0.045 R)
• M14: 4,568,719 km (0.11 R)
• M15: 5,786,894 km (0.069 R)
• M16: 7,029,155 km (0.106 R)
• M17: 7,619,020 km (0.026 R)
• M18: 9,158,082 km (0.079 R)
• M19: 13,854,259 km (0.114 R)
• M20: 17,311,466 km (0.05 R)
• M21: 19,238,137 km (0.108 R)
• M22: 20,842,125 km (0.086 R)
• M23: 23,313,482 km (0.063 R)
• M24: 26,292,873 km (0.057 R)
• M25: 30,568,231 km (0.056 R)
• M26: 32,994,110 km (0.086 R)
• M27: 35,154,602 km (0.088 R)
• M28: 38,638,437 km (0.098 R)
• M29: 42,198,867 km (0.117 R)
• M30: 44,740,983 km (0.114 R)
• M31: 48,500,976 km (0.103 R)
• M32: 48,823,509 km (0.094 R)
• M33: 50,292,560 km (0.111 R)
• M34: 51,959,230 km (0.112 R)
• M35: 52,806,104 km (0.071 R)
• M36: 61,787,960 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.7

Radius: 4.6

Gravity: 38.17 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 8.7 AU - 11.72 AU

Year: 21402 Days

Day: 15.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,097,929 km

• M1: 58,343 km (0.114 R)
• M2: 308,172 km (0.087 R)
• M3: 1,711,400 km (0.087 R)
• M4: 2,002,667 km (0.044 R)
• M5: 2,785,363 km (0.102 R)
• M6: 3,389,589 km (0.064 R)
• M7: 4,110,351 km (0.101 R)
• M8: 4,383,517 km (0.086 R)
• M9: 4,632,448 km (0.11 R)
• M10: 6,785,759 km (0.06 R)
• M11: 8,078,435 km (0.105 R)
• M12: 10,562,358 km (0.117 R)
• M13: 15,702,989 km (0.092 R)
• M14: 18,209,950 km (0.108 R)
• M15: 18,392,161 km (0.089 R)
• M16: 19,226,767 km (0.099 R)
• M17: 19,415,709 km (0.108 R)
• M18: 29,006,878 km (0.083 R)
• M19: 29,882,773 km (0.094 R)
• M20: 32,083,358 km (0.114 R)
• M21: 36,658,509 km (0.076 R)
• M22: 41,650,142 km (0.089 R)
• M23: 75,344,369 km (0.12 R)
• M24: 80,862,735 km (0.067 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 10,859 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit