🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.6

Radius: 8.7

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.61 AU - 0.89 AU

Year: 448 Days

Day: 7.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,047,038 km

• M1: 108,159 km (0.117 R)
• M2: 401,072 km (0.087 R)
• M3: 964,906 km (0.116 R)
• M4: 1,711,998 km (0.083 R)
• M5: 2,368,882 km (0.117 R)
• M6: 2,801,370 km (0.111 R)
• M7: 3,195,710 km (0.1 R)
• M8: 3,470,970 km (0.111 R)
• M9: 5,344,534 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.6

Radius: 11.4

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.63 AU - 0.95 AU

Year: 485 Days

Day: 9 Hours

Environment

Temp: -171 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,047,038 km

• M1: 141,819 km (0.1 R)
• M2: 606,320 km (0.055 R)
• M3: 1,059,153 km (0.079 R)
• M4: 1,445,564 km (0.092 R)
• M5: 1,842,747 km (0.106 R)
• M6: 2,349,285 km (0.07 R)
• M7: 2,842,958 km (0.094 R)
• M8: 3,707,035 km (0.119 R)
• M9: 5,178,929 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.5

Radius: 10.4

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.57 AU - 1.69 AU

Year: 1436 Days

Day: 12.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,047,038 km

• M1: 129,402 km (0.117 R)
• M2: 457,470 km (0.053 R)
• M3: 909,256 km (0.098 R)
• M4: 1,400,236 km (0.059 R)
• M5: 1,825,094 km (0.108 R)
• M6: 2,274,187 km (0.095 R)
• M7: 3,026,963 km (0.07 R)
• M8: 3,429,232 km (0.08 R)
• M9: 4,229,281 km (0.051 R)
• M10: 4,815,107 km (0.114 R)
• M11: 5,387,767 km (0.117 R)
• M12: 6,568,244 km (0.102 R)
• M13: 7,827,559 km (0.113 R)
• M14: 9,759,466 km (0.083 R)
• M15: 11,032,095 km (0.085 R)
• M16: 13,407,410 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.6

Radius: 11.6

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.9 AU - 2.32 AU

Year: 2116 Days

Day: 8.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,047,038 km

• M1: 144,512 km (0.089 R)
• M2: 507,586 km (0.115 R)
• M3: 937,829 km (0.12 R)
• M4: 1,305,690 km (0.083 R)
• M5: 1,761,964 km (0.11 R)
• M6: 2,273,289 km (0.075 R)
• M7: 2,973,407 km (0.08 R)
• M8: 3,978,855 km (0.026 R)
• M9: 4,468,339 km (0.074 R)
• M10: 5,108,468 km (0.112 R)
• M11: 5,882,338 km (0.111 R)
• M12: 6,678,947 km (0.09 R)
• M13: 7,487,822 km (0.082 R)
• M14: 9,034,664 km (0.082 R)
• M15: 11,818,830 km (0.113 R)
• M16: 12,218,107 km (0.098 R)
• M17: 14,806,599 km (0.071 R)
• M18: 15,459,594 km (0.1 R)
• M19: 15,937,708 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.2

Radius: 10.4

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.6 AU - 2.66 AU

Year: 2944 Days

Day: 13 Hours

Environment

Temp: -218 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,047,038 km

• M1: 130,001 km (0.102 R)
• M2: 539,600 km (0.09 R)
• M3: 1,251,237 km (0.056 R)
• M4: 1,874,312 km (0.113 R)
• M5: 2,435,753 km (0.12 R)
• M6: 2,804,810 km (0.119 R)
• M7: 4,515,013 km (0.079 R)
• M8: 4,931,643 km (0.085 R)
• M9: 6,142,189 km (0.114 R)
• M10: 6,802,365 km (0.072 R)
• M11: 7,636,822 km (0.119 R)
• M12: 8,162,808 km (0.086 R)
• M13: 8,712,580 km (0.1 R)
• M14: 9,360,638 km (0.043 R)
• M15: 11,498,541 km (0.098 R)
• M16: 12,014,654 km (0.095 R)
• M17: 12,908,950 km (0.109 R)
• M18: 13,466,501 km (0.11 R)
• M19: 14,981,479 km (0.054 R)
• M20: 17,886,819 km (0.11 R)
• M21: 18,405,176 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.5

Radius: 4.5

Gravity: 33.21 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.2 AU - 6.56 AU

Year: 9842 Days

Day: 15.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,047,038 km

• M1: 56,847 km (0.043 R)
• M2: 211,681 km (0.087 R)
• M3: 731,534 km (0.095 R)
• M4: 922,271 km (0.066 R)
• M5: 1,252,433 km (0.112 R)
• M6: 1,825,992 km (0.105 R)
• M7: 2,144,485 km (0.115 R)
• M8: 2,518,929 km (0.049 R)
• M9: 2,913,718 km (0.099 R)
• M10: 3,206,780 km (0.099 R)
• M11: 3,469,773 km (0.081 R)
• M12: 3,878,026 km (0.087 R)
• M13: 4,608,662 km (0.063 R)
• M14: 6,714,102 km (0.118 R)
• M15: 8,191,830 km (0.118 R)
• M16: 10,123,886 km (0.05 R)
• M17: 11,114,374 km (0.09 R)
• M18: 11,440,048 km (0.094 R)
• M19: 11,997,151 km (0.051 R)
• M20: 14,794,182 km (0.109 R)
• M21: 15,122,250 km (0.073 R)
• M22: 16,906,355 km (0.093 R)
• M23: 18,749,849 km (0.034 R)
• M24: 19,289,000 km (0.114 R)
• M25: 20,804,576 km (0.09 R)
• M26: 22,141,083 km (0.06 R)
• M27: 22,312,074 km (0.061 R)
• M28: 23,268,154 km (0.115 R)
• M29: 27,761,625 km (0.084 R)
• M30: 29,689,193 km (0.099 R)
• M31: 32,139,607 km (0.081 R)
• M32: 33,245,883 km (0.086 R)
• M33: 36,956,209 km (0.116 R)
• M34: 37,925,005 km (0.083 R)
• M35: 39,787,199 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 42.4

Radius: 5.2

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.14 AU - 7.16 AU

Year: 10527 Days

Day: 21.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,047,038 km

• M1: 83,625 km (0.096 R)
• M2: 299,495 km (0.088 R)
• M3: 636,090 km (0.096 R)
• M4: 1,307,037 km (0.108 R)
• M5: 1,674,449 km (0.057 R)
• M6: 2,069,387 km (0.085 R)
• M7: 3,042,671 km (0.117 R)
• M8: 6,159,992 km (0.109 R)
• M9: 6,772,744 km (0.106 R)
• M10: 7,861,966 km (0.096 R)
• M11: 8,315,398 km (0.088 R)
• M12: 10,496,684 km (0.033 R)
• M13: 18,869,079 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383.6

Radius: 5.8

Gravity: 11.4 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 7.73 AU - 8.83 AU

Year: 16446 Days

Day: 15.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,047,038 km

• M1: 72,106 km (0.074 R)
• M2: 545,733 km (0.063 R)
• M3: 1,060,799 km (0.041 R)
• M4: 1,358,199 km (0.111 R)
• M5: 1,741,768 km (0.066 R)
• M6: 2,047,696 km (0.075 R)
• M7: 2,469,861 km (0.075 R)
• M8: 4,174,229 km (0.085 R)
• M9: 6,500,327 km (0.032 R)
• M10: 7,279,133 km (0.077 R)
• M11: 8,971,384 km (0.061 R)
• M12: 9,521,156 km (0.108 R)
• M13: 12,367,256 km (0.059 R)
• M14: 14,892,618 km (0.119 R)
• M15: 16,979,508 km (0.087 R)
• M16: 17,897,291 km (0.113 R)
• M17: 19,172,014 km (0.096 R)
• M18: 19,831,442 km (0.079 R)
• M19: 21,370,505 km (0.057 R)
• M20: 22,712,547 km (0.119 R)
• M21: 34,795,866 km (0.049 R)
• M22: 37,281,136 km (0.085 R)
• M23: 40,148,777 km (0.082 R)
• M24: 41,091,244 km (0.091 R)
• M25: 47,654,252 km (0.093 R)
• M26: 50,713,229 km (0.074 R)
• M27: 51,340,344 km (0.037 R)
• M28: 51,814,120 km (0.061 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 11,366 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit