🌌 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 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.5 AU - 0.78 AU

Year: 336 Days

Day: 32.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.6

Radius: 8.8

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.59 AU - 0.85 AU

Year: 401 Days

Day: 5.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,072,252 km

• M1: 109,506 km (0.026 R)
• M2: 388,057 km (0.06 R)
• M3: 680,820 km (0.109 R)
• M4: 996,322 km (0.076 R)
• M5: 1,416,243 km (0.079 R)
• M6: 1,785,899 km (0.086 R)
• M7: 2,119,951 km (0.101 R)
• M8: 2,478,538 km (0.119 R)
• M9: 2,794,488 km (0.114 R)
• M10: 3,298,483 km (0.093 R)
• M11: 3,748,923 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.7

Radius: 11.2

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.04 AU - 1.32 AU

Year: 841 Days

Day: 7.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,072,252 km

• M1: 140,472 km (0.12 R)
• M2: 671,844 km (0.108 R)
• M3: 1,237,174 km (0.065 R)
• M4: 1,603,988 km (0.05 R)
• M5: 2,004,761 km (0.11 R)
• M6: 2,472,853 km (0.119 R)
• M7: 2,833,084 km (0.091 R)
• M8: 3,483,536 km (0.11 R)
• M9: 3,954,919 km (0.052 R)
• M10: 6,457,542 km (0.104 R)
• M11: 6,842,906 km (0.083 R)
• M12: 7,243,678 km (0.085 R)
• M13: 7,635,027 km (0.1 R)
• M14: 8,066,467 km (0.047 R)
• M15: 8,460,508 km (0.109 R)
• M16: 8,812,511 km (0.114 R)
• M17: 9,344,481 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.6

Radius: 14

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.64 AU - 1.8 AU

Year: 1480 Days

Day: 8.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,072,252 km

• M1: 177,872 km (0.059 R)
• M2: 755,020 km (0.071 R)
• M3: 1,332,767 km (0.107 R)
• M4: 2,216,292 km (0.067 R)
• M5: 2,783,418 km (0.06 R)
• M6: 3,922,456 km (0.073 R)
• M7: 4,520,249 km (0.069 R)
• M8: 5,374,603 km (0.118 R)
• M9: 7,000,133 km (0.089 R)
• M10: 7,655,970 km (0.115 R)
• M11: 8,145,006 km (0.072 R)
• M12: 8,654,835 km (0.076 R)
• M13: 9,217,922 km (0.067 R)
• M14: 10,006,901 km (0.074 R)
• M15: 10,840,311 km (0.118 R)
• M16: 12,409,742 km (0.119 R)
• M17: 13,454,533 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.2

Radius: 10.1

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.12 AU - 2.14 AU

Year: 2039 Days

Day: 14.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 69.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,072,252 km

• M1: 131,197 km (0.087 R)
• M2: 500,106 km (0.113 R)
• M3: 1,374,206 km (0.114 R)
• M4: 2,020,469 km (0.114 R)
• M5: 2,564,257 km (0.115 R)
• M6: 2,948,574 km (0.079 R)
• M7: 3,726,333 km (0.108 R)
• M8: 4,089,707 km (0.118 R)
• M9: 4,442,309 km (0.075 R)
• M10: 4,981,310 km (0.04 R)
• M11: 5,829,380 km (0.069 R)
• M12: 6,520,971 km (0.101 R)
• M13: 8,870,705 km (0.084 R)
• M14: 10,205,118 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.3

Radius: 12.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.66 AU - 2.68 AU

Year: 2097 Days

Day: 14.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,072,252 km

• M1: 151,692 km (0.118 R)
• M2: 606,470 km (0.099 R)
• M3: 1,026,391 km (0.052 R)
• M4: 1,467,406 km (0.029 R)
• M5: 1,928,765 km (0.092 R)
• M6: 2,556,628 km (0.084 R)
• M7: 3,852,145 km (0.054 R)
• M8: 4,461,308 km (0.105 R)
• M9: 4,890,205 km (0.116 R)
• M10: 5,465,109 km (0.079 R)
• M11: 8,307,918 km (0.106 R)
• M12: 9,100,188 km (0.051 R)
• M13: 10,153,058 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.1

Radius: 8.5

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.08 AU - 4.3 AU

Year: 4650 Days

Day: 7 Hours

Environment

Temp: -212 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,072,252 km

• M1: 106,663 km (0.096 R)
• M2: 376,987 km (0.092 R)
• M3: 685,757 km (0.099 R)
• M4: 972,685 km (0.05 R)
• M5: 1,382,135 km (0.066 R)
• M6: 2,063,254 km (0.117 R)
• M7: 2,830,691 km (0.052 R)
• M8: 3,492,362 km (0.051 R)
• M9: 4,075,345 km (0.078 R)
• M10: 4,367,360 km (0.118 R)
• M11: 7,105,151 km (0.102 R)
• M12: 7,463,139 km (0.11 R)
• M13: 8,040,138 km (0.111 R)
• M14: 9,515,173 km (0.063 R)
• M15: 11,871,788 km (0.096 R)
• M16: 13,331,115 km (0.029 R)
• M17: 13,876,698 km (0.075 R)
• M18: 14,231,545 km (0.096 R)
• M19: 14,853,872 km (0.098 R)
• M20: 15,440,146 km (0.034 R)
• M21: 18,301,355 km (0.03 R)
• M22: 21,430,793 km (0.099 R)
• M23: 21,836,951 km (0.069 R)
• M24: 23,299,120 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.7

Radius: 12.1

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.3 AU - 4.28 AU

Year: 4840 Days

Day: 7 Hours

Environment

Temp: -213 °C

Axial Tilt: 147.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,072,252 km

• M1: 151,243 km (0.118 R)
• M2: 553,961 km (0.109 R)
• M3: 940,372 km (0.11 R)
• M4: 1,416,243 km (0.057 R)
• M5: 2,091,977 km (0.041 R)
• M6: 2,512,795 km (0.074 R)
• M7: 3,197,954 km (0.089 R)
• M8: 5,310,126 km (0.076 R)
• M9: 6,441,086 km (0.1 R)
• M10: 7,033,194 km (0.087 R)
• M11: 7,889,941 km (0.089 R)
• M12: 8,464,397 km (0.083 R)
• M13: 10,042,355 km (0.047 R)
• M14: 10,515,833 km (0.043 R)
• M15: 12,833,702 km (0.114 R)
• M16: 13,439,125 km (0.12 R)
• M17: 14,063,397 km (0.027 R)
• M18: 15,473,805 km (0.08 R)
• M19: 18,456,936 km (0.112 R)
• M20: 19,228,712 km (0.082 R)
• M21: 20,457,808 km (0.065 R)
• M22: 21,155,832 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 539.2

Radius: 5.1

Gravity: 20.73 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.78 AU - 9.1 AU

Year: 13313 Days

Day: 15.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,072,252 km

• M1: 63,429 km (0.102 R)
• M2: 407,654 km (0.118 R)
• M3: 573,109 km (0.108 R)
• M4: 1,395,299 km (0.096 R)
• M5: 1,703,770 km (0.092 R)
• M6: 1,968,409 km (0.089 R)
• M7: 3,617,127 km (0.114 R)
• M8: 4,436,474 km (0.111 R)
• M9: 5,905,974 km (0.086 R)
• M10: 6,166,424 km (0.107 R)
• M11: 6,953,010 km (0.118 R)
• M12: 8,163,705 km (0.059 R)
• M13: 8,440,312 km (0.06 R)
• M14: 9,357,796 km (0.043 R)
• M15: 11,734,457 km (0.106 R)
• M16: 12,689,939 km (0.101 R)
• M17: 14,686,921 km (0.095 R)
• M18: 16,152,980 km (0.061 R)
• M19: 22,994,838 km (0.044 R)
• M20: 25,158,024 km (0.087 R)
• M21: 28,387,991 km (0.11 R)
• M22: 28,810,156 km (0.086 R)
• M23: 29,992,877 km (0.085 R)
• M24: 30,430,900 km (0.083 R)
• M25: 32,569,700 km (0.102 R)
• M26: 34,806,787 km (0.099 R)
• M27: 38,544,041 km (0.078 R)
• M28: 45,496,004 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 503.8

Radius: 4.2

Gravity: 28.56 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 8.13 AU - 9.51 AU

Year: 17184 Days

Day: 20 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 62,072,252 km

• M1: 52,210 km (0.095 R)
• M2: 198,217 km (0.03 R)
• M3: 346,319 km (0.066 R)
• M4: 548,426 km (0.072 R)
• M5: 1,193,342 km (0.099 R)
• M6: 1,428,360 km (0.084 R)
• M7: 1,693,448 km (0.115 R)
• M8: 1,899,893 km (0.11 R)
• M9: 2,065,498 km (0.112 R)
• M10: 2,780,276 km (0.111 R)
• M11: 2,945,881 km (0.074 R)
• M12: 3,428,634 km (0.113 R)
• M13: 3,591,546 km (0.109 R)
• M14: 3,962,249 km (0.086 R)
• M15: 4,948,997 km (0.094 R)
• M16: 5,227,997 km (0.053 R)
• M17: 7,665,993 km (0.103 R)
• M18: 8,622,672 km (0.104 R)
• M19: 9,285,540 km (0.1 R)
• M20: 9,656,243 km (0.119 R)
• M21: 9,818,108 km (0.063 R)
• M22: 12,028,267 km (0.086 R)
• M23: 13,448,549 km (0.118 R)
• M24: 14,690,810 km (0.106 R)
• M25: 15,121,203 km (0.111 R)
• M26: 16,082,818 km (0.094 R)
• M27: 21,416,431 km (0.052 R)
• M28: 23,201,134 km (0.078 R)
• M29: 23,491,653 km (0.12 R)
• M30: 27,818,472 km (0.069 R)
• M31: 34,498,915 km (0.086 R)
• M32: 41,316,538 km (0.107 R)
• M33: 48,189,214 km (0.112 R)
• M34: 48,504,118 km (0.116 R)
• M35: 48,979,091 km (0.112 R)
• M36: 53,058,924 km (0.103 R)
• M37: 55,612,260 km (0.075 R)
• M38: 57,536,089 km (0.119 R)
• M39: 60,778,922 km (0.097 R)
• M40: 60,962,628 km (0.119 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: 433 - 15,824 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit