🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.3

Radius: 9.6

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.58 AU - 0.7 AU

Year: 353 Days

Day: 5.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,192,394 km

• M1: 119,529 km (0.12 R)
• M2: 528,380 km (0.115 R)
• M3: 859,290 km (0.109 R)
• M4: 1,318,556 km (0.094 R)
• M5: 1,842,148 km (0.12 R)
• M6: 2,386,236 km (0.074 R)
• M7: 2,745,719 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 10.3

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.82 AU - 1.32 AU

Year: 764 Days

Day: 6.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,192,394 km

• M1: 128,205 km (0.112 R)
• M2: 520,601 km (0.025 R)
• M3: 2,148,076 km (0.07 R)
• M4: 2,643,993 km (0.096 R)
• M5: 2,969,667 km (0.118 R)
• M6: 3,295,192 km (0.102 R)
• M7: 6,745,218 km (0.12 R)
• M8: 8,285,029 km (0.086 R)
• M9: 8,855,745 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.4

Radius: 9.9

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.97 AU - 1.17 AU

Year: 764 Days

Day: 12.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,192,394 km

• M1: 123,119 km (0.089 R)
• M2: 451,187 km (0.064 R)
• M3: 895,343 km (0.114 R)
• M4: 1,250,937 km (0.109 R)
• M5: 1,900,043 km (0.096 R)
• M6: 2,227,512 km (0.113 R)
• M7: 2,759,782 km (0.12 R)
• M8: 3,209,772 km (0.078 R)
• M9: 3,590,050 km (0.04 R)
• M10: 3,937,416 km (0.119 R)
• M11: 4,374,092 km (0.078 R)
• M12: 4,735,670 km (0.05 R)
• M13: 5,136,144 km (0.039 R)
• M14: 5,460,921 km (0.072 R)
• M15: 5,819,656 km (0.052 R)
• M16: 6,991,905 km (0.071 R)
• M17: 7,956,961 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.8

Radius: 10.8

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.12 AU - 1.18 AU

Year: 851 Days

Day: 6.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,192,394 km

• M1: 134,488 km (0.079 R)
• M2: 488,886 km (0.1 R)
• M3: 830,567 km (0.057 R)
• M4: 1,583,643 km (0.103 R)
• M5: 1,936,245 km (0.098 R)
• M6: 2,576,524 km (0.066 R)
• M7: 3,781,984 km (0.119 R)
• M8: 4,700,365 km (0.115 R)
• M9: 5,293,820 km (0.034 R)
• M10: 5,897,148 km (0.115 R)
• M11: 7,985,983 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197

Radius: 12.6

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.31 AU - 2.19 AU

Year: 1598 Days

Day: 13.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,192,394 km

• M1: 159,771 km (0.098 R)
• M2: 729,888 km (0.095 R)
• M3: 1,163,423 km (0.119 R)
• M4: 1,575,116 km (0.109 R)
• M5: 3,647,495 km (0.115 R)
• M6: 4,161,962 km (0.046 R)
• M7: 5,489,643 km (0.065 R)
• M8: 7,266,417 km (0.09 R)
• M9: 7,985,684 km (0.118 R)
• M10: 8,857,540 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.2

Radius: 12.3

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.82 AU - 2.28 AU

Year: 2026 Days

Day: 14.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,192,394 km

• M1: 153,039 km (0.068 R)
• M2: 579,393 km (0.104 R)
• M3: 1,225,506 km (0.117 R)
• M4: 1,910,215 km (0.068 R)
• M5: 2,584,602 km (0.072 R)
• M6: 3,826,115 km (0.083 R)
• M7: 5,780,911 km (0.067 R)
• M8: 6,372,121 km (0.107 R)
• M9: 7,222,585 km (0.025 R)
• M10: 7,646,695 km (0.118 R)
• M11: 8,827,920 km (0.078 R)
• M12: 9,445,759 km (0.081 R)
• M13: 10,092,321 km (0.091 R)
• M14: 11,210,416 km (0.084 R)
• M15: 11,664,744 km (0.052 R)
• M16: 12,329,408 km (0.11 R)
• M17: 13,019,353 km (0.116 R)
• M18: 14,654,458 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322

Radius: 12.9

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.55 AU - 2.55 AU

Year: 2811 Days

Day: 6.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,192,394 km

• M1: 162,463 km (0.111 R)
• M2: 693,985 km (0.065 R)
• M3: 1,106,725 km (0.105 R)
• M4: 1,518,269 km (0.102 R)
• M5: 2,187,270 km (0.114 R)
• M6: 3,217,551 km (0.11 R)
• M7: 3,631,638 km (0.059 R)
• M8: 4,548,374 km (0.035 R)
• M9: 5,007,789 km (0.105 R)
• M10: 5,429,356 km (0.101 R)
• M11: 6,446,621 km (0.074 R)
• M12: 9,543,895 km (0.11 R)
• M13: 10,657,652 km (0.045 R)
• M14: 11,434,513 km (0.047 R)
• M15: 12,208,981 km (0.102 R)
• M16: 13,059,745 km (0.062 R)
• M17: 14,475,838 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 12.5

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.36 AU - 4.34 AU

Year: 5214 Days

Day: 8.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,192,394 km

• M1: 155,731 km (0.097 R)
• M2: 1,146,668 km (0.049 R)
• M3: 1,635,105 km (0.109 R)
• M4: 2,027,799 km (0.077 R)
• M5: 2,454,003 km (0.082 R)
• M6: 3,027,562 km (0.095 R)
• M7: 3,491,016 km (0.1 R)
• M8: 3,895,678 km (0.11 R)
• M9: 4,286,877 km (0.09 R)
• M10: 5,073,013 km (0.099 R)
• M11: 9,209,395 km (0.103 R)
• M12: 9,829,178 km (0.044 R)
• M13: 11,456,803 km (0.051 R)
• M14: 13,649,160 km (0.056 R)
• M15: 14,302,005 km (0.069 R)
• M16: 15,028,303 km (0.058 R)
• M17: 15,888,191 km (0.101 R)
• M18: 18,181,527 km (0.072 R)
• M19: 22,642,835 km (0.067 R)
• M20: 23,062,307 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.7

Radius: 11.4

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 3.58 AU - 4.78 AU

Year: 5899 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,192,394 km

• M1: 141,819 km (0.089 R)
• M2: 835,355 km (0.088 R)
• M3: 1,539,063 km (0.067 R)
• M4: 2,106,188 km (0.07 R)
• M5: 3,310,302 km (0.096 R)
• M6: 4,038,993 km (0.12 R)
• M7: 4,573,207 km (0.114 R)
• M8: 5,299,505 km (0.097 R)
• M9: 5,690,703 km (0.113 R)
• M10: 6,068,886 km (0.06 R)
• M11: 6,633,618 km (0.049 R)
• M12: 7,490,216 km (0.096 R)
• M13: 10,740,529 km (0.12 R)
• M14: 11,617,920 km (0.076 R)
• M15: 14,248,748 km (0.088 R)
• M16: 16,545,225 km (0.118 R)
• M17: 17,058,496 km (0.103 R)
• M18: 17,848,223 km (0.031 R)
• M19: 18,869,527 km (0.069 R)
• M20: 23,911,724 km (0.026 R)
• M21: 25,917,083 km (0.038 R)
• M22: 26,784,900 km (0.073 R)
• M23: 29,224,692 km (0.097 R)
• M24: 31,319,511 km (0.089 R)
• M25: 34,127,912 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.4

Radius: 7.3

Gravity: 13.33 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.89 AU - 10.51 AU

Year: 20853 Days

Day: 16.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,192,394 km

• M1: 95,892 km (0.078 R)
• M2: 347,217 km (0.101 R)
• M3: 1,211,892 km (0.08 R)
• M4: 1,481,019 km (0.116 R)
• M5: 3,339,024 km (0.082 R)
• M6: 3,720,200 km (0.119 R)
• M7: 4,228,833 km (0.101 R)
• M8: 6,379,900 km (0.064 R)
• M9: 6,646,933 km (0.109 R)
• M10: 7,203,287 km (0.042 R)
• M11: 7,740,044 km (0.091 R)
• M12: 8,355,939 km (0.075 R)
• M13: 8,729,933 km (0.089 R)
• M14: 11,406,688 km (0.108 R)
• M15: 12,825,325 km (0.117 R)
• M16: 13,251,379 km (0.089 R)
• M17: 15,050,443 km (0.041 R)
• M18: 15,604,404 km (0.076 R)
• M19: 17,694,436 km (0.029 R)
• M20: 18,580,355 km (0.082 R)
• M21: 19,495,595 km (0.03 R)
• M22: 20,729,777 km (0.083 R)
• M23: 27,339,011 km (0.117 R)
• M24: 29,369,952 km (0.046 R)
• M25: 32,405,292 km (0.117 R)
• M26: 37,484,439 km (0.1 R)
• M27: 38,355,099 km (0.115 R)
• M28: 44,024,858 km (0.098 R)
• M29: 51,821,002 km (0.109 R)
• M30: 57,563,914 km (0.074 R)
• M31: 58,141,212 km (0.095 R)
• M32: 76,843,041 km (0.098 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 10,858 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit