🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.41 AU - 0.63 AU

Year: 138 Days

Day: 30.2 Hours

Environment

Temp: 164 °C

Axial Tilt: 3.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.44 AU - 0.64 AU

Year: 146 Days

Day: 22.2 Hours

Environment

Temp: 185 °C

Axial Tilt: 21.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,071,404 km

• M1: 174,880 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.49 AU - 0.67 AU

Year: 162 Days

Day: 14.5 Hours

Environment

Temp: 219 °C

Axial Tilt: 29.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,071,404 km

• M1: 444,306 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.52 AU - 0.64 AU

Year: 162 Days

Day: 16.7 Hours

Environment

Temp: 193 °C

Axial Tilt: 36 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 75,071,404 km

• M1: 35,754 km (0.057 R)
• M2: 158,125 km (0.063 R)

Planet 5 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.78 AU - 1.04 AU

Year: 319 Days

Day: 17 Hours

Environment

Temp: 136 °C

Axial Tilt: 13.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,071,404 km

• M1: 42,635 km (0.12 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.15 AU - 1.87 AU

Year: 681 Days

Day: 34.7 Hours

Environment

Temp: -38 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.36 AU - 1.84 AU

Year: 743 Days

Day: 29.3 Hours

Environment

Temp: -39 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.34 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 11.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.7

Radius: 12.3

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.79 AU - 11.37 AU

Year: 13539 Days

Day: 10.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,071,404 km

• M1: 153,039 km (0.037 R)
• M2: 665,411 km (0.078 R)
• M3: 1,118,992 km (0.066 R)
• M4: 1,782,907 km (0.049 R)
• M5: 4,357,337 km (0.119 R)
• M6: 9,568,579 km (0.101 R)
• M7: 11,383,351 km (0.093 R)
• M8: 12,641,768 km (0.104 R)
• M9: 21,422,265 km (0.104 R)
• M10: 31,628,131 km (0.066 R)
• M11: 36,373,675 km (0.082 R)
• M12: 37,264,231 km (0.083 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.1

Radius: 12

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 11.86 AU - 12.44 AU

Year: 15547 Days

Day: 8 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 75,071,404 km

• M1: 169,794 km (0.059 R)
• M2: 572,960 km (0.078 R)
• M3: 1,029,533 km (0.111 R)
• M4: 1,639,593 km (0.105 R)
• M5: 2,204,025 km (0.082 R)
• M6: 2,782,221 km (0.094 R)
• M7: 3,255,698 km (0.096 R)
• M8: 4,037,946 km (0.057 R)
• M9: 4,776,810 km (0.08 R)
• M10: 5,318,055 km (0.106 R)
• M11: 5,975,687 km (0.117 R)
• M12: 8,136,479 km (0.079 R)
• M13: 9,315,459 km (0.11 R)
• M14: 10,108,328 km (0.109 R)
• M15: 11,588,449 km (0.11 R)
• M16: 12,256,404 km (0.107 R)
• M17: 12,885,912 km (0.082 R)
• M18: 13,404,717 km (0.109 R)
• M19: 15,914,670 km (0.091 R)
• M20: 19,137,457 km (0.117 R)
• M21: 20,769,121 km (0.07 R)
• M22: 24,602,866 km (0.03 R)
• M23: 28,774,552 km (0.098 R)
• M24: 31,491,848 km (0.045 R)
• M25: 38,622,879 km (0.099 R)
• M26: 40,250,205 km (0.095 R)
• M27: 41,781,638 km (0.114 R)
• M28: 43,641,289 km (0.097 R)
• M29: 44,224,422 km (0.082 R)
• M30: 47,678,786 km (0.111 R)
• M31: 51,958,781 km (0.069 R)
• M32: 54,612,348 km (0.111 R)
• M33: 59,471,287 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 781.5

Radius: 3.6

Gravity: 60.3 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 12.53 AU - 14.61 AU

Year: 18350 Days

Day: 20.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 75,071,404 km

• M1: 61,036 km (0.104 R)
• M2: 287,976 km (0.103 R)
• M3: 446,849 km (0.035 R)
• M4: 559,346 km (0.096 R)
• M5: 832,811 km (0.12 R)
• M6: 1,081,892 km (0.116 R)
• M7: 1,727,257 km (0.114 R)
• M8: 1,893,610 km (0.106 R)
• M9: 2,692,313 km (0.069 R)
• M10: 3,574,492 km (0.053 R)
• M11: 4,227,037 km (0.107 R)
• M12: 5,215,730 km (0.073 R)
• M13: 5,603,338 km (0.081 R)
• M14: 6,177,943 km (0.096 R)
• M15: 6,349,083 km (0.109 R)
• M16: 6,611,777 km (0.09 R)
• M17: 6,973,206 km (0.118 R)
• M18: 7,395,221 km (0.107 R)
• M19: 8,187,491 km (0.118 R)
• M20: 8,604,122 km (0.068 R)
• M21: 8,817,598 km (0.09 R)
• M22: 9,089,567 km (0.091 R)
• M23: 10,963,579 km (0.072 R)
• M24: 11,598,173 km (0.119 R)
• M25: 12,123,262 km (0.083 R)
• M26: 14,382,638 km (0.086 R)
• M27: 16,907,402 km (0.074 R)
• M28: 17,158,277 km (0.097 R)
• M29: 23,016,530 km (0.1 R)
• M30: 23,844,255 km (0.077 R)
• M31: 24,691,727 km (0.104 R)
• M32: 28,754,207 km (0.079 R)
• M33: 38,314,558 km (0.067 R)
• M34: 54,013,209 km (0.113 R)
• M35: 54,921,717 km (0.112 R)
• M36: 56,582,702 km (0.107 R)
• M37: 58,848,960 km (0.074 R)
• M38: 63,965,357 km (0.112 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: 542 - 12,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit