🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.58 AU - 0.74 AU

Year: 352 Days

Day: 12.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.3

Radius: 13.3

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.56 AU - 0.84 AU

Year: 384 Days

Day: 9.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,824,179 km

• M1: 165,455 km (0.105 R)
• M2: 647,011 km (0.115 R)
• M3: 1,112,709 km (0.057 R)
• M4: 1,950,607 km (0.06 R)
• M5: 2,382,944 km (0.083 R)
• M6: 3,097,873 km (0.088 R)
• M7: 3,605,309 km (0.075 R)
• M8: 4,251,272 km (0.078 R)
• M9: 4,819,595 km (0.077 R)
• M10: 5,258,515 km (0.049 R)
• M11: 5,932,304 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.2

Radius: 9.2

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.84 AU - 1.22 AU

Year: 686 Days

Day: 12 Hours

Environment

Temp: -152 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,824,179 km

• M1: 114,442 km (0.083 R)
• M2: 417,976 km (0.099 R)
• M3: 723,754 km (0.08 R)
• M4: 1,212,940 km (0.101 R)
• M5: 1,709,156 km (0.032 R)
• M6: 2,262,668 km (0.043 R)
• M7: 2,667,928 km (0.093 R)
• M8: 2,956,353 km (0.07 R)
• M9: 3,610,844 km (0.045 R)
• M10: 4,407,752 km (0.109 R)
• M11: 4,761,251 km (0.059 R)
• M12: 5,061,195 km (0.059 R)
• M13: 5,817,113 km (0.091 R)
• M14: 7,839,527 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.4

Radius: 12.1

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.57 AU - 1.73 AU

Year: 1390 Days

Day: 11 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 82,824,179 km

• M1: 151,692 km (0.106 R)
• M2: 611,855 km (0.093 R)
• M3: 1,198,129 km (0.093 R)
• M4: 2,092,575 km (0.078 R)
• M5: 3,306,562 km (0.099 R)
• M6: 4,820,043 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.9

Radius: 10.2

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.68 AU - 1.88 AU

Year: 1558 Days

Day: 12.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,824,179 km

• M1: 126,859 km (0.116 R)
• M2: 474,524 km (0.118 R)
• M3: 1,224,608 km (0.082 R)
• M4: 1,894,807 km (0.047 R)
• M5: 2,432,611 km (0.113 R)
• M6: 2,907,734 km (0.119 R)
• M7: 3,659,762 km (0.06 R)
• M8: 4,439,018 km (0.097 R)
• M9: 4,940,619 km (0.111 R)
• M10: 5,303,095 km (0.092 R)
• M11: 5,683,373 km (0.1 R)
• M12: 6,498,831 km (0.118 R)
• M13: 7,780,436 km (0.096 R)
• M14: 9,708,752 km (0.116 R)
• M15: 10,211,251 km (0.09 R)
• M16: 11,785,769 km (0.089 R)
• M17: 12,513,413 km (0.05 R)
• M18: 13,230,136 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.6

Radius: 9.5

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.48 AU - 2.74 AU

Year: 2766 Days

Day: 7.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,824,179 km

• M1: 118,182 km (0.12 R)
• M2: 436,078 km (0.1 R)
• M3: 828,772 km (0.113 R)
• M4: 1,791,285 km (0.08 R)
• M5: 2,349,135 km (0.094 R)
• M6: 3,100,865 km (0.11 R)
• M7: 3,514,952 km (0.06 R)
• M8: 4,225,541 km (0.079 R)
• M9: 4,647,856 km (0.111 R)
• M10: 5,005,994 km (0.098 R)
• M11: 5,334,361 km (0.057 R)
• M12: 6,965,576 km (0.058 R)
• M13: 8,276,801 km (0.119 R)
• M14: 9,602,089 km (0.109 R)
• M15: 12,496,658 km (0.114 R)
• M16: 14,610,476 km (0.091 R)
• M17: 16,434,523 km (0.052 R)
• M18: 16,848,011 km (0.096 R)
• M19: 17,268,381 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.7

Radius: 10.4

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.39 AU - 3.87 AU

Year: 3633 Days

Day: 8.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,824,179 km

• M1: 129,552 km (0.103 R)
• M2: 492,775 km (0.105 R)
• M3: 985,551 km (0.102 R)
• M4: 1,528,741 km (0.057 R)
• M5: 1,908,570 km (0.035 R)
• M6: 2,566,351 km (0.115 R)
• M7: 3,218,598 km (0.059 R)
• M8: 4,492,723 km (0.099 R)
• M9: 5,179,228 km (0.117 R)
• M10: 6,457,242 km (0.113 R)
• M11: 7,266,866 km (0.081 R)
• M12: 8,974,675 km (0.078 R)
• M13: 9,430,799 km (0.118 R)
• M14: 10,143,932 km (0.11 R)
• M15: 13,956,135 km (0.062 R)
• M16: 14,672,858 km (0.102 R)
• M17: 16,069,055 km (0.058 R)
• M18: 16,515,904 km (0.107 R)
• M19: 18,691,656 km (0.101 R)
• M20: 19,499,484 km (0.039 R)
• M21: 21,051,861 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.4

Radius: 10.4

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.21 AU - 6.91 AU

Year: 8600 Days

Day: 7.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,824,179 km

• M1: 129,402 km (0.052 R)
• M2: 480,808 km (0.079 R)
• M3: 813,663 km (0.05 R)
• M4: 1,371,663 km (0.106 R)
• M5: 1,731,296 km (0.094 R)
• M6: 2,189,664 km (0.085 R)
• M7: 4,495,865 km (0.075 R)
• M8: 4,826,177 km (0.104 R)
• M9: 5,335,857 km (0.083 R)
• M10: 7,956,512 km (0.095 R)
• M11: 8,714,974 km (0.111 R)
• M12: 11,117,366 km (0.104 R)
• M13: 11,556,735 km (0.037 R)
• M14: 12,470,628 km (0.108 R)
• M15: 20,919,617 km (0.072 R)
• M16: 21,253,220 km (0.118 R)
• M17: 23,240,328 km (0.071 R)
• M18: 25,442,858 km (0.116 R)
• M19: 28,591,444 km (0.106 R)
• M20: 29,209,433 km (0.115 R)
• M21: 31,116,806 km (0.115 R)
• M22: 37,703,899 km (0.106 R)
• M23: 42,576,900 km (0.097 R)
• M24: 44,610,683 km (0.073 R)
• M25: 47,422,226 km (0.117 R)
• M26: 47,998,327 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.1

Radius: 3.5

Gravity: 62.7 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.66 AU - 8.6 AU

Year: 12489 Days

Day: 23.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,824,179 km

• M1: 43,683 km (0.108 R)
• M2: 161,715 km (0.094 R)
• M3: 403,017 km (0.048 R)
• M4: 1,310,328 km (0.099 R)
• M5: 1,746,106 km (0.061 R)
• M6: 2,155,406 km (0.118 R)
• M7: 2,560,517 km (0.116 R)
• M8: 4,079,384 km (0.079 R)
• M9: 4,319,040 km (0.053 R)
• M10: 5,128,963 km (0.092 R)
• M11: 5,408,113 km (0.104 R)
• M12: 6,111,821 km (0.091 R)
• M13: 6,916,358 km (0.088 R)
• M14: 8,635,088 km (0.094 R)
• M15: 8,930,245 km (0.098 R)
• M16: 9,750,041 km (0.096 R)
• M17: 10,618,756 km (0.071 R)
• M18: 10,900,449 km (0.053 R)
• M19: 11,361,659 km (0.039 R)
• M20: 12,322,676 km (0.108 R)
• M21: 12,446,393 km (0.096 R)
• M22: 14,959,937 km (0.104 R)
• M23: 16,559,288 km (0.093 R)
• M24: 17,400,327 km (0.071 R)
• M25: 19,753,052 km (0.087 R)
• M26: 22,585,688 km (0.09 R)
• M27: 23,428,672 km (0.062 R)
• M28: 25,576,898 km (0.079 R)
• M29: 27,219,333 km (0.117 R)
• M30: 29,369,503 km (0.111 R)
• M31: 30,260,358 km (0.072 R)
• M32: 33,640,821 km (0.038 R)
• M33: 43,388,170 km (0.054 R)
• M34: 44,107,436 km (0.112 R)
• M35: 48,436,200 km (0.108 R)
• M36: 55,699,925 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 653.7

Radius: 3.8

Gravity: 45.27 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.66 AU - 12.92 AU

Year: 23251 Days

Day: 15.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,824,179 km

• M1: 49,666 km (0.116 R)
• M2: 201,359 km (0.097 R)
• M3: 468,391 km (0.119 R)
• M4: 824,883 km (0.07 R)
• M5: 1,121,535 km (0.082 R)
• M6: 2,108,133 km (0.043 R)
• M7: 2,941,543 km (0.08 R)
• M8: 4,039,442 km (0.107 R)
• M9: 4,172,584 km (0.109 R)
• M10: 7,098,569 km (0.079 R)
• M11: 10,209,307 km (0.037 R)
• M12: 10,771,346 km (0.101 R)
• M13: 13,520,955 km (0.052 R)
• M14: 17,134,491 km (0.106 R)
• M15: 18,286,993 km (0.107 R)
• M16: 22,053,269 km (0.095 R)
• M17: 28,683,746 km (0.117 R)
• M18: 31,853,575 km (0.109 R)
• M19: 32,381,357 km (0.073 R)
• M20: 32,915,122 km (0.048 R)
• M21: 38,132,946 km (0.06 R)
• M22: 38,877,644 km (0.075 R)
• M23: 41,639,371 km (0.097 R)
• M24: 58,009,866 km (0.117 R)
• M25: 67,275,808 km (0.077 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 19,738 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit