🌌 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: 515.3

Radius: 11

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.72 AU - 0.78 AU

Year: 441 Days

Day: 12.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,996,080 km

• M1: 136,882 km (0.041 R)
• M2: 483,800 km (0.116 R)
• M3: 835,803 km (0.076 R)
• M4: 1,187,209 km (0.088 R)
• M5: 1,539,512 km (0.075 R)
• M6: 1,893,311 km (0.04 R)
• M7: 3,059,576 km (0.089 R)
• M8: 3,473,214 km (0.108 R)
• M9: 4,184,252 km (0.118 R)
• M10: 4,624,519 km (0.095 R)
• M11: 5,374,304 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.4

Radius: 9.5

Gravity: 10.41 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.61 AU - 0.89 AU

Year: 441 Days

Day: 8 Hours

Environment

Temp: -162 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,996,080 km

• M1: 118,182 km (0.091 R)
• M2: 493,374 km (0.112 R)
• M3: 968,497 km (0.062 R)
• M4: 1,332,767 km (0.089 R)
• M5: 1,628,373 km (0.026 R)
• M6: 2,375,315 km (0.116 R)
• M7: 3,384,053 km (0.105 R)
• M8: 4,764,393 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.2

Radius: 14.5

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.02 AU - 1.16 AU

Year: 772 Days

Day: 8.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,996,080 km

• M1: 180,565 km (0.042 R)
• M2: 1,166,115 km (0.075 R)
• M3: 1,974,094 km (0.057 R)
• M4: 2,596,121 km (0.095 R)
• M5: 3,069,150 km (0.026 R)
• M6: 3,805,770 km (0.07 R)
• M7: 4,849,963 km (0.091 R)
• M8: 5,575,213 km (0.066 R)
• M9: 6,036,274 km (0.039 R)
• M10: 6,610,132 km (0.093 R)
• M11: 7,575,337 km (0.089 R)
• M12: 8,320,933 km (0.104 R)
• M13: 8,898,530 km (0.116 R)
• M14: 9,502,756 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.2

Radius: 13.7

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.01 AU - 1.21 AU

Year: 793 Days

Day: 7.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,996,080 km

• M1: 170,392 km (0.113 R)
• M2: 944,860 km (0.061 R)
• M3: 1,435,840 km (0.12 R)
• M4: 1,955,843 km (0.059 R)
• M5: 2,636,214 km (0.066 R)
• M6: 3,169,979 km (0.115 R)
• M7: 4,424,656 km (0.067 R)
• M8: 5,054,912 km (0.05 R)
• M9: 5,926,320 km (0.035 R)
• M10: 6,605,344 km (0.089 R)
• M11: 8,018,446 km (0.096 R)
• M12: 9,094,503 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.3

Radius: 9.9

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.69 AU - 3.11 AU

Year: 3350 Days

Day: 6.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 52.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,996,080 km

• M1: 123,119 km (0.079 R)
• M2: 604,824 km (0.102 R)
• M3: 1,274,275 km (0.064 R)
• M4: 1,814,024 km (0.103 R)
• M5: 2,426,178 km (0.104 R)
• M6: 2,997,044 km (0.081 R)
• M7: 4,541,492 km (0.098 R)
• M8: 4,986,845 km (0.12 R)
• M9: 6,131,119 km (0.079 R)
• M10: 7,347,200 km (0.041 R)
• M11: 9,295,712 km (0.116 R)
• M12: 10,210,952 km (0.076 R)
• M13: 11,018,781 km (0.077 R)
• M14: 11,824,964 km (0.043 R)
• M15: 12,176,070 km (0.115 R)
• M16: 12,624,564 km (0.117 R)
• M17: 14,831,731 km (0.057 R)
• M18: 21,129,652 km (0.072 R)
• M19: 22,173,247 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.5

Radius: 14.3

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.98 AU - 3.72 AU

Year: 4159 Days

Day: 6.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,996,080 km

• M1: 178,021 km (0.103 R)
• M2: 635,492 km (0.11 R)
• M3: 1,095,505 km (0.067 R)
• M4: 1,631,066 km (0.107 R)
• M5: 2,933,165 km (0.063 R)
• M6: 3,394,824 km (0.083 R)
• M7: 4,516,061 km (0.09 R)
• M8: 5,217,675 km (0.103 R)
• M9: 7,624,704 km (0.116 R)
• M10: 8,205,593 km (0.116 R)
• M11: 9,293,618 km (0.059 R)
• M12: 10,085,290 km (0.103 R)
• M13: 10,697,145 km (0.058 R)
• M14: 11,708,427 km (0.113 R)
• M15: 12,335,541 km (0.09 R)
• M16: 13,447,801 km (0.067 R)
• M17: 14,406,724 km (0.115 R)
• M18: 15,296,831 km (0.102 R)
• M19: 17,997,970 km (0.087 R)
• M20: 19,228,862 km (0.084 R)
• M21: 19,831,143 km (0.069 R)
• M22: 20,308,210 km (0.112 R)
• M23: 20,932,931 km (0.032 R)
• M24: 22,293,823 km (0.087 R)
• M25: 28,937,913 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.1

Radius: 12

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.4 AU - 3.6 AU

Year: 4441 Days

Day: 8.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,996,080 km

• M1: 150,944 km (0.111 R)
• M2: 541,095 km (0.072 R)
• M3: 1,029,981 km (0.074 R)
• M4: 1,516,025 km (0.04 R)
• M5: 2,917,308 km (0.094 R)
• M6: 3,990,224 km (0.084 R)
• M7: 5,480,967 km (0.064 R)
• M8: 6,532,191 km (0.117 R)
• M9: 7,314,737 km (0.058 R)
• M10: 7,775,948 km (0.031 R)
• M11: 8,688,944 km (0.063 R)
• M12: 9,383,826 km (0.11 R)
• M13: 12,934,531 km (0.079 R)
• M14: 16,344,016 km (0.114 R)
• M15: 16,815,100 km (0.092 R)
• M16: 17,295,309 km (0.063 R)
• M17: 19,599,864 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.1

Radius: 10.3

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.5 AU - 5.72 AU

Year: 9012 Days

Day: 6.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 72,996,080 km

• M1: 128,355 km (0.106 R)
• M2: 459,714 km (0.103 R)
• M3: 1,235,379 km (0.093 R)
• M4: 1,961,826 km (0.101 R)
• M5: 2,290,942 km (0.081 R)
• M6: 2,677,503 km (0.078 R)
• M7: 3,152,925 km (0.064 R)
• M8: 3,761,190 km (0.062 R)
• M9: 4,772,471 km (0.119 R)
• M10: 5,507,894 km (0.085 R)
• M11: 7,004,172 km (0.113 R)
• M12: 8,893,743 km (0.052 R)
• M13: 9,906,072 km (0.087 R)
• M14: 10,518,077 km (0.094 R)
• M15: 12,860,331 km (0.068 R)
• M16: 14,089,726 km (0.112 R)
• M17: 15,194,955 km (0.09 R)
• M18: 19,717,747 km (0.046 R)
• M19: 20,117,622 km (0.099 R)
• M20: 21,099,134 km (0.03 R)
• M21: 21,601,783 km (0.067 R)
• M22: 30,132,153 km (0.117 R)
• M23: 35,370,173 km (0.093 R)
• M24: 36,198,795 km (0.088 R)
• M25: 38,887,817 km (0.046 R)
• M26: 39,517,026 km (0.092 R)
• M27: 40,795,788 km (0.079 R)
• M28: 41,707,138 km (0.117 R)
• M29: 44,113,121 km (0.116 R)
• M30: 46,610,059 km (0.1 R)
• M31: 48,471,056 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.3

Radius: 6.1

Gravity: 11.75 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.57 AU - 6.89 AU

Year: 9303 Days

Day: 15.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,996,080 km

• M1: 78,539 km (0.106 R)
• M2: 293,511 km (0.103 R)
• M3: 499,657 km (0.104 R)
• M4: 937,679 km (0.045 R)
• M5: 1,167,911 km (0.064 R)
• M6: 1,499,419 km (0.058 R)
• M7: 2,351,230 km (0.092 R)
• M8: 3,535,147 km (0.095 R)
• M9: 5,659,587 km (0.118 R)
• M10: 5,986,608 km (0.06 R)
• M11: 7,043,965 km (0.088 R)
• M12: 7,774,901 km (0.075 R)
• M13: 11,208,620 km (0.084 R)
• M14: 12,310,558 km (0.028 R)
• M15: 13,084,279 km (0.116 R)
• M16: 13,948,655 km (0.046 R)
• M17: 23,509,605 km (0.036 R)
• M18: 27,657,056 km (0.078 R)
• M19: 33,839,487 km (0.096 R)
• M20: 34,374,748 km (0.111 R)
• M21: 39,096,805 km (0.12 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.3

Radius: 3.5

Gravity: 44.51 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 8.03 AU - 11.73 AU

Year: 21063 Days

Day: 21.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 162.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,996,080 km

• M1: 43,832 km (0.077 R)
• M2: 275,260 km (0.098 R)
• M3: 671,994 km (0.062 R)
• M4: 1,253,181 km (0.096 R)
• M5: 1,385,875 km (0.096 R)
• M6: 1,897,350 km (0.076 R)
• M7: 2,302,012 km (0.056 R)
• M8: 2,689,171 km (0.102 R)
• M9: 3,118,068 km (0.066 R)
• M10: 4,206,692 km (0.069 R)
• M11: 5,034,716 km (0.11 R)
• M12: 5,182,669 km (0.085 R)
• M13: 6,960,789 km (0.078 R)
• M14: 9,607,325 km (0.075 R)
• M15: 9,835,013 km (0.105 R)
• M16: 21,789,079 km (0.113 R)
• M17: 29,247,581 km (0.094 R)
• M18: 51,299,653 km (0.103 R)
• M19: 66,214,411 km (0.119 R)
• M20: 66,625,356 km (0.117 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 10,463 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit