🌌 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: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 14.9

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.56 AU - 0.92 AU

Year: 411 Days

Day: 9.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,840,177 km

• M1: 186,100 km (0.095 R)
• M2: 796,758 km (0.073 R)
• M3: 1,431,203 km (0.082 R)
• M4: 1,956,740 km (0.088 R)
• M5: 2,588,193 km (0.088 R)
• M6: 3,154,122 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.7

Radius: 8.1

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.74 AU - 1.04 AU

Year: 542 Days

Day: 7.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,840,177 km

• M1: 101,577 km (0.102 R)
• M2: 383,120 km (0.092 R)
• M3: 676,033 km (0.052 R)
• M4: 997,369 km (0.109 R)
• M5: 1,335,311 km (0.116 R)
• M6: 1,799,962 km (0.029 R)
• M7: 2,459,090 km (0.084 R)
• M8: 2,764,269 km (0.118 R)
• M9: 3,822,824 km (0.111 R)
• M10: 4,575,750 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.4

Radius: 8.9

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.92 AU - 1.36 AU

Year: 786 Days

Day: 6.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,840,177 km

• M1: 110,702 km (0.098 R)
• M2: 404,513 km (0.096 R)
• M3: 827,426 km (0.097 R)
• M4: 1,186,461 km (0.108 R)
• M5: 1,612,515 km (0.09 R)
• M6: 1,959,583 km (0.065 R)
• M7: 2,490,655 km (0.064 R)
• M8: 3,149,035 km (0.046 R)
• M9: 3,433,271 km (0.095 R)
• M10: 3,905,402 km (0.046 R)
• M11: 4,276,854 km (0.105 R)
• M12: 4,870,458 km (0.11 R)
• M13: 5,252,381 km (0.083 R)
• M14: 5,619,943 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195

Radius: 8.8

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.68 AU - 2.66 AU

Year: 2064 Days

Day: 10.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,840,177 km

• M1: 109,506 km (0.104 R)
• M2: 741,407 km (0.067 R)
• M3: 1,234,182 km (0.12 R)
• M4: 1,642,435 km (0.114 R)
• M5: 3,598,577 km (0.066 R)
• M6: 3,881,317 km (0.048 R)
• M7: 4,545,531 km (0.099 R)
• M8: 5,303,394 km (0.092 R)
• M9: 10,434,302 km (0.086 R)
• M10: 10,882,198 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.4

Radius: 12.1

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.75 AU - 2.83 AU

Year: 2238 Days

Day: 9.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,840,177 km

• M1: 152,590 km (0.099 R)
• M2: 570,267 km (0.086 R)
• M3: 1,061,546 km (0.088 R)
• M4: 1,517,371 km (0.073 R)
• M5: 2,063,104 km (0.092 R)
• M6: 3,079,173 km (0.038 R)
• M7: 3,630,591 km (0.116 R)
• M8: 4,385,611 km (0.106 R)
• M9: 5,163,969 km (0.054 R)
• M10: 7,565,015 km (0.058 R)
• M11: 9,024,192 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661

Radius: 13.3

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.4 AU - 4.08 AU

Year: 4670 Days

Day: 12.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,840,177 km

• M1: 180,415 km (0.069 R)
• M2: 1,026,241 km (0.116 R)
• M3: 1,444,367 km (0.115 R)
• M4: 1,966,015 km (0.113 R)
• M5: 3,033,845 km (0.095 R)
• M6: 3,837,784 km (0.085 R)
• M7: 4,959,020 km (0.078 R)
• M8: 5,498,171 km (0.026 R)
• M9: 6,016,677 km (0.06 R)
• M10: 7,321,021 km (0.088 R)
• M11: 9,196,828 km (0.103 R)
• M12: 11,102,107 km (0.026 R)
• M13: 13,668,907 km (0.089 R)
• M14: 18,321,102 km (0.117 R)
• M15: 19,947,081 km (0.041 R)
• M16: 20,829,708 km (0.092 R)
• M17: 22,022,901 km (0.093 R)
• M18: 25,165,803 km (0.062 R)
• M19: 26,116,198 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.3

Radius: 14.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 3.79 AU - 5.03 AU

Year: 5980 Days

Day: 13.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,840,177 km

• M1: 185,501 km (0.119 R)
• M2: 665,561 km (0.047 R)
• M3: 1,421,329 km (0.09 R)
• M4: 2,921,646 km (0.094 R)
• M5: 3,529,163 km (0.074 R)
• M6: 4,245,139 km (0.115 R)
• M7: 5,514,776 km (0.096 R)
• M8: 7,415,417 km (0.029 R)
• M9: 8,201,404 km (0.11 R)
• M10: 9,042,443 km (0.093 R)
• M11: 10,118,052 km (0.101 R)
• M12: 11,038,528 km (0.094 R)
• M13: 12,471,825 km (0.079 R)
• M14: 20,166,840 km (0.089 R)
• M15: 20,814,449 km (0.088 R)
• M16: 23,308,545 km (0.104 R)
• M17: 28,343,710 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.7

Radius: 14.7

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.21 AU - 5.97 AU

Year: 7415 Days

Day: 14.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,840,177 km

• M1: 182,958 km (0.087 R)
• M2: 709,692 km (0.097 R)
• M3: 1,186,610 km (0.061 R)
• M4: 2,368,134 km (0.098 R)
• M5: 3,601,270 km (0.066 R)
• M6: 4,541,193 km (0.114 R)
• M7: 5,444,914 km (0.091 R)
• M8: 8,470,381 km (0.086 R)
• M9: 8,963,007 km (0.109 R)
• M10: 9,840,398 km (0.11 R)
• M11: 10,513,888 km (0.069 R)
• M12: 12,671,987 km (0.111 R)
• M13: 14,354,514 km (0.043 R)
• M14: 15,556,084 km (0.082 R)
• M15: 19,238,885 km (0.062 R)
• M16: 23,467,268 km (0.119 R)
• M17: 24,594,937 km (0.108 R)
• M18: 27,530,945 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.1

Radius: 6.2

Gravity: 15.4 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 6.09 AU - 6.93 AU

Year: 10725 Days

Day: 21 Hours

Environment

Temp: -230 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,840,177 km

• M1: 77,043 km (0.102 R)
• M2: 280,197 km (0.113 R)
• M3: 519,404 km (0.108 R)
• M4: 745,596 km (0.109 R)
• M5: 1,229,994 km (0.066 R)
• M6: 1,445,714 km (0.091 R)
• M7: 1,824,944 km (0.049 R)
• M8: 2,496,489 km (0.042 R)
• M9: 2,824,109 km (0.12 R)
• M10: 3,590,498 km (0.111 R)
• M11: 4,257,705 km (0.094 R)
• M12: 4,848,467 km (0.079 R)
• M13: 5,260,908 km (0.052 R)
• M14: 5,593,764 km (0.063 R)
• M15: 13,746,548 km (0.046 R)
• M16: 14,506,954 km (0.063 R)
• M17: 16,250,069 km (0.095 R)
• M18: 18,810,885 km (0.084 R)
• M19: 19,668,230 km (0.076 R)
• M20: 21,544,487 km (0.087 R)
• M21: 24,348,849 km (0.065 R)
• M22: 30,351,314 km (0.077 R)
• M23: 34,090,213 km (0.072 R)
• M24: 35,129,021 km (0.101 R)
• M25: 36,786,565 km (0.048 R)
• M26: 38,993,583 km (0.119 R)
• M27: 42,202,906 km (0.1 R)
• M28: 43,265,948 km (0.042 R)
• M29: 44,483,076 km (0.052 R)
• M30: 45,445,440 km (0.108 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: 457 - 17,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit