🌌 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: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.56 AU - 0.7 AU

Year: 323 Days

Day: 26.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 28.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.4

Radius: 10

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.57 AU - 0.79 AU

Year: 362 Days

Day: 14 Hours

Environment

Temp: -128 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,316,858 km

• M1: 124,316 km (0.1 R)
• M2: 502,499 km (0.104 R)
• M3: 869,463 km (0.11 R)
• M4: 1,250,489 km (0.056 R)
• M5: 1,592,619 km (0.119 R)
• M6: 1,943,725 km (0.103 R)
• M7: 3,187,631 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.8

Radius: 13.2

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.86 AU - 2.64 AU

Year: 2179 Days

Day: 10.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,316,858 km

• M1: 164,109 km (0.049 R)
• M2: 601,982 km (0.091 R)
• M3: 1,453,194 km (0.067 R)
• M4: 2,159,744 km (0.104 R)
• M5: 2,600,310 km (0.119 R)
• M6: 3,303,719 km (0.111 R)
• M7: 4,695,129 km (0.098 R)
• M8: 6,271,292 km (0.086 R)
• M9: 6,992,204 km (0.109 R)
• M10: 7,596,729 km (0.115 R)
• M11: 10,406,327 km (0.098 R)
• M12: 11,455,008 km (0.039 R)
• M13: 11,909,187 km (0.057 R)
• M14: 12,454,172 km (0.074 R)
• M15: 13,974,984 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.5

Radius: 10.7

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.22 AU - 3.12 AU

Year: 2817 Days

Day: 9 Hours

Environment

Temp: -201 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,316,858 km

• M1: 133,142 km (0.101 R)
• M2: 663,317 km (0.11 R)
• M3: 1,085,931 km (0.091 R)
• M4: 1,959,732 km (0.107 R)
• M5: 2,330,136 km (0.101 R)
• M6: 2,811,243 km (0.108 R)
• M7: 3,412,776 km (0.112 R)
• M8: 3,754,308 km (0.112 R)
• M9: 4,139,822 km (0.113 R)
• M10: 4,596,694 km (0.097 R)
• M11: 5,612,015 km (0.093 R)
• M12: 6,683,135 km (0.083 R)
• M13: 7,375,773 km (0.099 R)
• M14: 7,820,378 km (0.082 R)
• M15: 9,482,261 km (0.072 R)
• M16: 10,201,079 km (0.058 R)
• M17: 10,753,693 km (0.047 R)
• M18: 11,201,889 km (0.102 R)
• M19: 12,487,682 km (0.026 R)
• M20: 13,774,224 km (0.071 R)
• M21: 14,206,113 km (0.054 R)
• M22: 15,299,524 km (0.118 R)
• M23: 16,024,176 km (0.111 R)
• M24: 17,374,745 km (0.071 R)
• M25: 17,992,435 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.8

Radius: 10

Gravity: 8.3 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.29 AU - 3.67 AU

Year: 4192 Days

Day: 7.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 64,316,858 km

• M1: 124,316 km (0.119 R)
• M2: 749,934 km (0.119 R)
• M3: 1,377,796 km (0.112 R)
• M4: 2,738,239 km (0.11 R)
• M5: 3,197,505 km (0.057 R)
• M6: 3,517,944 km (0.036 R)
• M7: 3,837,933 km (0.118 R)
• M8: 4,414,783 km (0.102 R)
• M9: 5,128,365 km (0.102 R)
• M10: 6,006,355 km (0.06 R)
• M11: 6,981,284 km (0.107 R)
• M12: 7,454,761 km (0.063 R)
• M13: 7,949,631 km (0.064 R)
• M14: 8,428,643 km (0.119 R)
• M15: 9,323,238 km (0.117 R)
• M16: 10,024,105 km (0.077 R)
• M17: 11,392,327 km (0.088 R)
• M18: 11,764,825 km (0.053 R)
• M19: 13,960,922 km (0.11 R)
• M20: 15,099,811 km (0.099 R)
• M21: 15,663,495 km (0.114 R)
• M22: 17,134,043 km (0.085 R)
• M23: 18,566,293 km (0.102 R)
• M24: 19,875,424 km (0.108 R)
• M25: 20,347,704 km (0.104 R)
• M26: 21,881,232 km (0.045 R)
• M27: 22,603,191 km (0.106 R)
• M28: 22,970,155 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 13.1

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.5 AU - 5.18 AU

Year: 5838 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,316,858 km

• M1: 163,062 km (0.067 R)
• M2: 625,917 km (0.046 R)
• M3: 1,374,954 km (0.071 R)
• M4: 2,066,096 km (0.084 R)
• M5: 2,616,018 km (0.041 R)
• M6: 3,056,584 km (0.094 R)
• M7: 5,030,528 km (0.091 R)
• M8: 7,031,399 km (0.078 R)
• M9: 9,516,669 km (0.113 R)
• M10: 10,104,738 km (0.086 R)
• M11: 15,201,687 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.2

Radius: 14.2

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.23 AU - 4.77 AU

Year: 6164 Days

Day: 13.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,316,858 km

• M1: 176,675 km (0.089 R)
• M2: 638,035 km (0.087 R)
• M3: 1,263,504 km (0.114 R)
• M4: 1,733,839 km (0.114 R)
• M5: 2,244,566 km (0.109 R)
• M6: 2,693,510 km (0.054 R)
• M7: 3,665,746 km (0.084 R)
• M8: 4,597,591 km (0.038 R)
• M9: 5,217,974 km (0.12 R)
• M10: 6,174,054 km (0.074 R)
• M11: 6,965,426 km (0.108 R)
• M12: 8,086,812 km (0.093 R)
• M13: 8,831,510 km (0.069 R)
• M14: 10,368,180 km (0.096 R)
• M15: 10,871,576 km (0.08 R)
• M16: 11,632,880 km (0.088 R)
• M17: 13,422,669 km (0.116 R)
• M18: 14,299,312 km (0.082 R)
• M19: 14,751,846 km (0.102 R)
• M20: 19,335,226 km (0.099 R)
• M21: 20,596,485 km (0.108 R)
• M22: 21,393,842 km (0.084 R)
• M23: 23,752,103 km (0.109 R)
• M24: 24,871,992 km (0.086 R)
• M25: 28,354,631 km (0.117 R)
• M26: 29,160,515 km (0.073 R)
• M27: 30,166,111 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.9

Radius: 4.9

Gravity: 34.44 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 5.32 AU - 8.4 AU

Year: 11601 Days

Day: 18.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,316,858 km

• M1: 61,186 km (0.042 R)
• M2: 278,701 km (0.112 R)
• M3: 545,883 km (0.101 R)
• M4: 1,391,559 km (0.07 R)
• M5: 3,374,330 km (0.104 R)
• M6: 4,921,471 km (0.074 R)
• M7: 7,139,259 km (0.101 R)
• M8: 7,975,511 km (0.099 R)
• M9: 8,536,204 km (0.102 R)
• M10: 9,425,863 km (0.105 R)
• M11: 11,100,312 km (0.079 R)
• M12: 11,680,303 km (0.092 R)
• M13: 13,869,219 km (0.101 R)
• M14: 20,122,110 km (0.11 R)
• M15: 24,672,728 km (0.047 R)
• M16: 26,262,355 km (0.089 R)
• M17: 29,097,235 km (0.073 R)
• M18: 31,438,441 km (0.1 R)
• M19: 32,362,358 km (0.077 R)
• M20: 34,022,595 km (0.109 R)
• M21: 45,629,595 km (0.1 R)
• M22: 46,962,512 km (0.091 R)
• M23: 52,554,031 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662.6

Radius: 3.8

Gravity: 45.89 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 7.32 AU - 9.54 AU

Year: 15804 Days

Day: 21.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 64,316,858 km

• M1: 76,594 km (0.114 R)
• M2: 295,905 km (0.043 R)
• M3: 569,220 km (0.064 R)
• M4: 731,534 km (0.044 R)
• M5: 992,432 km (0.032 R)
• M6: 1,216,380 km (0.097 R)
• M7: 1,503,907 km (0.101 R)
• M8: 1,906,924 km (0.11 R)
• M9: 2,335,971 km (0.116 R)
• M10: 4,412,240 km (0.108 R)
• M11: 4,741,205 km (0.084 R)
• M12: 5,864,835 km (0.092 R)
• M13: 7,937,214 km (0.119 R)
• M14: 9,136,241 km (0.078 R)
• M15: 10,857,215 km (0.059 R)
• M16: 11,213,557 km (0.102 R)
• M17: 12,075,241 km (0.097 R)
• M18: 12,782,689 km (0.09 R)
• M19: 14,138,794 km (0.056 R)
• M20: 18,357,005 km (0.12 R)
• M21: 19,813,191 km (0.069 R)
• M22: 21,715,926 km (0.094 R)
• M23: 25,462,455 km (0.11 R)
• M24: 25,880,282 km (0.052 R)
• M25: 26,515,475 km (0.089 R)
• M26: 30,079,644 km (0.042 R)
• M27: 30,312,568 km (0.071 R)
• M28: 38,140,127 km (0.041 R)
• M29: 38,686,907 km (0.082 R)
• M30: 40,500,033 km (0.092 R)
• M31: 46,432,785 km (0.113 R)
• M32: 49,767,621 km (0.08 R)
• M33: 50,913,691 km (0.025 R)
• M34: 51,410,206 km (0.026 R)
• M35: 52,077,263 km (0.119 R)
• M36: 52,244,812 km (0.092 R)
• M37: 52,412,811 km (0.061 R)
• M38: 55,150,452 km (0.115 R)
• M39: 56,908,825 km (0.104 R)
• M40: 57,622,557 km (0.049 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 10,834 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit