🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.48 AU - 0.58 AU

Year: 175 Days

Day: 30.1 Hours

Environment

Temp: 26 °C

Axial Tilt: 31.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.65 AU - 0.85 AU

Year: 294 Days

Day: 40.3 Hours

Environment

Temp: -47 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.79 AU - 1.09 AU

Year: 413 Days

Day: 12.3 Hours

Environment

Temp: -67 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.48 AU - 1.52 AU

Year: 832 Days

Day: 13.5 Hours

Environment

Temp: -107 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.4 AU - 1.62 AU

Year: 841 Days

Day: 18.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.63 AU - 2.29 AU

Year: 1243 Days

Day: 46.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 23,826,457 km

• M1: 158,125 km (0.097 R)
• M2: 1,160,580 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.5

Radius: 9.7

Gravity: 9.7 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 6.6 AU - 8.72 AU

Year: 9605 Days

Day: 8.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 23,826,457 km

• M1: 120,875 km (0.103 R)
• M2: 424,409 km (0.119 R)
• M3: 743,801 km (0.106 R)
• M4: 1,106,575 km (0.071 R)
• M5: 1,588,281 km (0.05 R)
• M6: 1,895,255 km (0.114 R)
• M7: 2,260,723 km (0.078 R)
• M8: 4,108,406 km (0.111 R)
• M9: 5,506,698 km (0.099 R)
• M10: 5,820,704 km (0.071 R)
• M11: 6,220,728 km (0.049 R)
• M12: 7,076,278 km (0.071 R)
• M13: 8,596,043 km (0.111 R)
• M14: 9,457,278 km (0.066 R)
• M15: 17,020,348 km (0.108 R)
• M16: 19,318,321 km (0.12 R)
• M17: 25,759,856 km (0.073 R)
• M18: 26,345,531 km (0.072 R)
• M19: 27,848,541 km (0.063 R)
• M20: 30,587,828 km (0.113 R)
• M21: 32,247,317 km (0.1 R)
• M22: 34,082,584 km (0.073 R)
• M23: 34,552,171 km (0.114 R)
• M24: 36,595,828 km (0.079 R)
• M25: 37,834,947 km (0.084 R)
• M26: 44,732,905 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.8

Radius: 5.1

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 11.35 AU - 12.29 AU

Year: 18410 Days

Day: 18.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 23,826,457 km

• M1: 66,870 km (0.062 R)
• M2: 229,334 km (0.105 R)
• M3: 423,661 km (0.092 R)
• M4: 813,812 km (0.088 R)
• M5: 1,085,632 km (0.097 R)
• M6: 1,303,297 km (0.113 R)
• M7: 2,312,933 km (0.114 R)
• M8: 3,300,877 km (0.116 R)
• M9: 4,045,426 km (0.117 R)
• M10: 4,289,121 km (0.08 R)
• M11: 4,542,689 km (0.053 R)
• M12: 5,724,662 km (0.098 R)
• M13: 6,717,543 km (0.093 R)
• M14: 7,294,093 km (0.082 R)
• M15: 9,502,307 km (0.108 R)
• M16: 12,399,569 km (0.106 R)
• M17: 13,562,543 km (0.095 R)
• M18: 15,116,266 km (0.038 R)
• M19: 17,132,846 km (0.108 R)
• M20: 17,842,987 km (0.104 R)
• M21: 21,040,791 km (0.109 R)
• M22: 21,526,685 km (0.104 R)
• M23: 21,772,474 km (0.106 R)
• M24: 23,459,040 km (0.029 R)
• M25: 23,981,436 km (0.113 R)
• M26: 25,595,448 km (0.088 R)
• M27: 27,472,003 km (0.093 R)
• M28: 30,973,342 km (0.081 R)
• M29: 40,441,241 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15.7

Radius: 3.7

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 11.53 AU - 16.01 AU

Year: 23149 Days

Day: 16.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,826,457 km

• M1: 126,261 km (0.107 R)
• M2: 302,636 km (0.044 R)
• M3: 422,016 km (0.093 R)
• M4: 956,230 km (0.083 R)
• M5: 1,467,555 km (0.079 R)
• M6: 2,141,643 km (0.069 R)
• M7: 3,790,511 km (0.101 R)
• M8: 5,390,759 km (0.067 R)
• M9: 5,851,820 km (0.068 R)
• M10: 6,221,626 km (0.105 R)
• M11: 6,338,611 km (0.114 R)
• M12: 9,411,501 km (0.092 R)
• M13: 19,112,325 km (0.112 R)
• M14: 21,884,373 km (0.109 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 13,055 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit