🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.7

Radius: 8.3

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.54 AU - 0.72 AU

Year: 351 Days

Day: 10.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,700,470 km

• M1: 103,223 km (0.073 R)
• M2: 367,412 km (0.095 R)
• M3: 851,212 km (0.06 R)
• M4: 1,232,986 km (0.116 R)
• M5: 1,679,685 km (0.107 R)
• M6: 2,059,364 km (0.1 R)
• M7: 2,338,813 km (0.035 R)
• M8: 2,974,903 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.1

Radius: 13.5

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.75 AU - 1.13 AU

Year: 641 Days

Day: 13.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,700,470 km

• M1: 170,542 km (0.064 R)
• M2: 633,397 km (0.084 R)
• M3: 1,105,977 km (0.117 R)
• M4: 1,918,892 km (0.063 R)
• M5: 3,077,378 km (0.065 R)
• M6: 4,116,485 km (0.11 R)
• M7: 4,931,045 km (0.101 R)
• M8: 6,581,259 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.3

Radius: 14

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.9 AU - 1.3 AU

Year: 811 Days

Day: 13.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,700,470 km

• M1: 174,730 km (0.095 R)
• M2: 724,353 km (0.032 R)
• M3: 1,215,333 km (0.117 R)
• M4: 1,867,580 km (0.116 R)
• M5: 2,491,403 km (0.033 R)
• M6: 3,574,043 km (0.12 R)
• M7: 4,017,451 km (0.103 R)
• M8: 5,135,844 km (0.113 R)
• M9: 5,796,170 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.9

Radius: 12.7

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.52 AU - 2.02 AU

Year: 1655 Days

Day: 13.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,700,470 km

• M1: 158,125 km (0.075 R)
• M2: 630,854 km (0.076 R)
• M3: 1,361,191 km (0.112 R)
• M4: 1,973,046 km (0.083 R)
• M5: 2,690,219 km (0.093 R)
• M6: 3,499,543 km (0.059 R)
• M7: 5,115,798 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.4

Radius: 13.5

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.58 AU - 2.04 AU

Year: 1712 Days

Day: 8.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,700,470 km

• M1: 167,849 km (0.037 R)
• M2: 639,830 km (0.115 R)
• M3: 1,182,721 km (0.109 R)
• M4: 1,696,739 km (0.047 R)
• M5: 3,122,407 km (0.106 R)
• M6: 5,157,387 km (0.107 R)
• M7: 6,037,321 km (0.111 R)
• M8: 7,287,810 km (0.112 R)
• M9: 8,313,453 km (0.102 R)
• M10: 10,979,736 km (0.111 R)
• M11: 11,485,377 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.8

Radius: 14.7

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.49 AU - 4.87 AU

Year: 7117 Days

Day: 9.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,700,470 km

• M1: 183,706 km (0.112 R)
• M2: 1,001,857 km (0.081 R)
• M3: 1,533,827 km (0.083 R)
• M4: 3,289,508 km (0.118 R)
• M5: 4,202,653 km (0.077 R)
• M6: 4,988,042 km (0.101 R)
• M7: 5,454,338 km (0.117 R)
• M8: 6,504,067 km (0.097 R)
• M9: 8,826,574 km (0.105 R)
• M10: 10,078,857 km (0.079 R)
• M11: 11,657,863 km (0.12 R)
• M12: 12,439,961 km (0.105 R)
• M13: 13,678,631 km (0.079 R)
• M14: 17,889,063 km (0.115 R)
• M15: 18,812,680 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.2

Radius: 3.1

Gravity: 100.85 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 5.01 AU - 6.49 AU

Year: 9692 Days

Day: 20.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 52,700,470 km

• M1: 38,596 km (0.107 R)
• M2: 138,976 km (0.057 R)
• M3: 320,738 km (0.102 R)
• M4: 1,029,682 km (0.09 R)
• M5: 1,133,802 km (0.111 R)
• M6: 1,948,363 km (0.084 R)
• M7: 2,516,087 km (0.082 R)
• M8: 3,802,479 km (0.062 R)
• M9: 3,912,433 km (0.073 R)
• M10: 8,284,880 km (0.113 R)
• M11: 9,436,185 km (0.098 R)
• M12: 9,791,181 km (0.093 R)
• M13: 11,187,527 km (0.032 R)
• M14: 11,991,765 km (0.098 R)
• M15: 13,779,011 km (0.074 R)
• M16: 14,104,087 km (0.116 R)
• M17: 14,434,250 km (0.088 R)
• M18: 14,567,691 km (0.079 R)
• M19: 16,091,046 km (0.12 R)
• M20: 19,368,736 km (0.085 R)
• M21: 28,968,580 km (0.116 R)
• M22: 29,609,009 km (0.057 R)
• M23: 34,836,258 km (0.109 R)
• M24: 37,288,915 km (0.112 R)
• M25: 41,448,184 km (0.108 R)
• M26: 43,500,069 km (0.105 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 14,797 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit