🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.2

Radius: 13.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.04 AU - 1.06 AU

Year: 684 Days

Day: 7.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,387,806 km

• M1: 171,589 km (0.089 R)
• M2: 821,442 km (0.099 R)
• M3: 1,269,787 km (0.117 R)
• M4: 2,142,242 km (0.097 R)
• M5: 2,693,061 km (0.116 R)
• M6: 3,409,186 km (0.099 R)
• M7: 4,043,930 km (0.098 R)
• M8: 4,476,417 km (0.084 R)
• M9: 5,127,916 km (0.095 R)
• M10: 6,196,344 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.4

Radius: 10.8

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.24 AU - 1.38 AU

Year: 953 Days

Day: 13.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,387,806 km

• M1: 134,339 km (0.093 R)
• M2: 623,973 km (0.112 R)
• M3: 1,038,658 km (0.09 R)
• M4: 1,638,845 km (0.115 R)
• M5: 2,191,010 km (0.091 R)
• M6: 2,553,187 km (0.028 R)
• M7: 2,955,456 km (0.085 R)
• M8: 3,429,382 km (0.107 R)
• M9: 3,825,666 km (0.046 R)
• M10: 4,566,475 km (0.097 R)
• M11: 4,971,287 km (0.11 R)
• M12: 6,024,755 km (0.049 R)
• M13: 6,422,237 km (0.108 R)
• M14: 6,979,489 km (0.053 R)
• M15: 7,594,037 km (0.104 R)
• M16: 7,979,700 km (0.083 R)
• M17: 9,390,558 km (0.076 R)
• M18: 10,109,076 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.8

Radius: 10.6

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.62 AU - 2.38 AU

Year: 1798 Days

Day: 13.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,387,806 km

• M1: 131,796 km (0.113 R)
• M2: 638,334 km (0.112 R)
• M3: 1,049,878 km (0.104 R)
• M4: 1,832,125 km (0.11 R)
• M5: 2,223,174 km (0.109 R)
• M6: 3,149,484 km (0.093 R)
• M7: 3,730,672 km (0.114 R)
• M8: 4,851,459 km (0.039 R)
• M9: 5,708,206 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.5

Radius: 13.4

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.75 AU - 6.31 AU

Year: 9415 Days

Day: 13.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,387,806 km

• M1: 166,652 km (0.11 R)
• M2: 1,765,404 km (0.098 R)
• M3: 2,198,042 km (0.101 R)
• M4: 3,081,417 km (0.08 R)
• M5: 4,701,263 km (0.081 R)
• M6: 6,866,243 km (0.026 R)
• M7: 7,617,972 km (0.087 R)
• M8: 8,664,260 km (0.05 R)
• M9: 9,848,477 km (0.048 R)
• M10: 11,089,840 km (0.101 R)
• M11: 12,381,468 km (0.086 R)
• M12: 16,047,214 km (0.114 R)
• M13: 16,606,112 km (0.115 R)
• M14: 24,205,384 km (0.113 R)
• M15: 29,028,868 km (0.082 R)
• M16: 32,152,472 km (0.118 R)
• M17: 34,150,950 km (0.083 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.8

Radius: 7.3

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.82 AU - 6.58 AU

Year: 9816 Days

Day: 18.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,387,806 km

• M1: 90,806 km (0.1 R)
• M2: 2,371,276 km (0.108 R)
• M3: 2,784,914 km (0.079 R)
• M4: 3,879,970 km (0.033 R)
• M5: 4,427,947 km (0.11 R)
• M6: 5,517,469 km (0.111 R)
• M7: 6,418,347 km (0.087 R)
• M8: 9,753,781 km (0.069 R)
• M9: 14,212,994 km (0.114 R)
• M10: 14,697,841 km (0.109 R)
• M11: 15,700,596 km (0.106 R)
• M12: 16,350,000 km (0.11 R)
• M13: 17,771,928 km (0.038 R)
• M14: 18,477,132 km (0.083 R)
• M15: 31,411,962 km (0.066 R)
• M16: 35,116,006 km (0.119 R)
• M17: 36,562,767 km (0.108 R)
• M18: 39,456,139 km (0.118 R)
• M19: 40,052,586 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.3

Radius: 6.8

Gravity: 16.55 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6.04 AU - 8.7 AU

Year: 12721 Days

Day: 23.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 43,387,806 km

• M1: 88,263 km (0.114 R)
• M2: 305,928 km (0.097 R)
• M3: 609,312 km (0.087 R)
• M4: 910,901 km (0.118 R)
• M5: 1,492,089 km (0.115 R)
• M6: 1,706,613 km (0.115 R)
• M7: 2,067,742 km (0.101 R)
• M8: 2,499,780 km (0.054 R)
• M9: 3,110,589 km (0.073 R)
• M10: 3,464,238 km (0.119 R)
• M11: 3,929,487 km (0.062 R)
• M12: 4,466,693 km (0.066 R)
• M13: 5,085,580 km (0.105 R)
• M14: 5,909,565 km (0.072 R)
• M15: 10,940,092 km (0.118 R)
• M16: 11,818,232 km (0.055 R)
• M17: 12,491,422 km (0.112 R)
• M18: 15,658,559 km (0.039 R)
• M19: 17,154,986 km (0.065 R)
• M20: 17,465,402 km (0.092 R)
• M21: 25,179,266 km (0.104 R)
• M22: 28,076,080 km (0.088 R)
• M23: 28,507,221 km (0.059 R)
• M24: 29,382,817 km (0.067 R)
• M25: 30,843,790 km (0.071 R)
• M26: 32,234,601 km (0.074 R)
• M27: 35,767,804 km (0.069 R)
• M28: 39,013,778 km (0.105 R)
• M29: 39,685,622 km (0.058 R)
• M30: 40,092,529 km (0.096 R)
• M31: 49,292,648 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 280.7

Radius: 7.9

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 7.13 AU - 8.17 AU

Year: 13453 Days

Day: 21.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,387,806 km

• M1: 174,880 km (0.072 R)
• M2: 660,026 km (0.079 R)
• M3: 1,121,535 km (0.076 R)
• M4: 1,668,166 km (0.097 R)
• M5: 3,305,515 km (0.105 R)
• M6: 7,261,331 km (0.098 R)
• M7: 8,327,964 km (0.047 R)
• M8: 9,542,549 km (0.108 R)
• M9: 10,118,650 km (0.106 R)
• M10: 10,768,803 km (0.101 R)
• M11: 12,828,765 km (0.073 R)
• M12: 15,591,988 km (0.101 R)
• M13: 20,326,910 km (0.068 R)
• M14: 22,096,653 km (0.048 R)
• M15: 31,551,238 km (0.108 R)
• M16: 32,079,019 km (0.117 R)
• M17: 33,697,519 km (0.075 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: 237 - 19,884 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit