🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.68 AU - 0.88 AU

Year: 257 Days

Day: 21.8 Hours

Environment

Temp: 171 °C

Axial Tilt: 7.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 28,364,406 km

• M1: 156,031 km (0.094 R)
• M2: 188,344 km (0.094 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.76 AU - 2.82 AU

Year: 1292 Days

Day: 34.8 Hours

Environment

Temp: -88 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,364,406 km

• M1: 18,999 km (0.073 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.9 AU - 3.36 AU

Year: 2064 Days

Day: 40.2 Hours

Environment

Temp: -103 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,364,406 km

• M1: 383,868 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.51 AU - 5.05 AU

Year: 3301 Days

Day: 42.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.5

Radius: 9.9

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.2 AU - 5.2 AU

Year: 3798 Days

Day: 10.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,364,406 km

• M1: 124,765 km (0.118 R)
• M2: 461,360 km (0.108 R)
• M3: 770,279 km (0.106 R)
• M4: 1,081,293 km (0.118 R)
• M5: 1,641,537 km (0.109 R)
• M6: 1,962,425 km (0.089 R)
• M7: 2,666,732 km (0.088 R)
• M8: 3,114,628 km (0.074 R)
• M9: 4,345,220 km (0.117 R)
• M10: 4,747,339 km (0.062 R)
• M11: 5,216,328 km (0.092 R)
• M12: 5,942,775 km (0.054 R)
• M13: 6,318,715 km (0.107 R)
• M14: 10,386,431 km (0.118 R)
• M15: 11,284,317 km (0.09 R)
• M16: 13,194,981 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.7

Radius: 11.2

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.73 AU - 5.93 AU

Year: 3957 Days

Day: 6.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 28,364,406 km

• M1: 141,520 km (0.07 R)
• M2: 916,287 km (0.055 R)
• M3: 2,544,211 km (0.075 R)
• M4: 5,715,686 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.5

Radius: 9.7

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.12 AU - 6.04 AU

Year: 4268 Days

Day: 10.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,364,406 km

• M1: 120,576 km (0.095 R)
• M2: 458,368 km (0.112 R)
• M3: 769,382 km (0.102 R)
• M4: 1,078,750 km (0.081 R)
• M5: 1,463,516 km (0.085 R)
• M6: 2,013,737 km (0.103 R)
• M7: 2,429,619 km (0.072 R)
• M8: 2,806,157 km (0.081 R)
• M9: 4,135,184 km (0.104 R)
• M10: 4,607,914 km (0.089 R)
• M11: 4,974,129 km (0.086 R)
• M12: 5,636,100 km (0.098 R)
• M13: 7,721,644 km (0.094 R)
• M14: 9,971,745 km (0.12 R)
• M15: 10,743,969 km (0.102 R)
• M16: 12,671,239 km (0.081 R)
• M17: 13,484,602 km (0.115 R)
• M18: 14,525,504 km (0.058 R)
• M19: 15,926,638 km (0.116 R)
• M20: 18,534,877 km (0.114 R)
• M21: 19,582,511 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.5

Radius: 10.6

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.82 AU - 6.82 AU

Year: 5234 Days

Day: 14.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 28,364,406 km

• M1: 131,796 km (0.09 R)
• M2: 629,957 km (0.102 R)
• M3: 1,006,345 km (0.102 R)
• M4: 1,683,126 km (0.096 R)
• M5: 2,676,306 km (0.112 R)
• M6: 4,508,581 km (0.115 R)
• M7: 6,299,866 km (0.108 R)
• M8: 7,232,010 km (0.066 R)
• M9: 8,177,468 km (0.075 R)
• M10: 8,523,339 km (0.036 R)
• M11: 11,225,675 km (0.116 R)
• M12: 11,605,504 km (0.118 R)
• M13: 12,191,179 km (0.113 R)
• M14: 14,231,993 km (0.095 R)
• M15: 14,621,097 km (0.057 R)
• M16: 16,128,894 km (0.119 R)
• M17: 17,231,730 km (0.065 R)
• M18: 17,865,875 km (0.082 R)
• M19: 19,383,247 km (0.102 R)
• M20: 19,724,180 km (0.049 R)
• M21: 20,771,066 km (0.093 R)
• M22: 21,781,151 km (0.111 R)
• M23: 22,899,395 km (0.118 R)
• M24: 23,665,934 km (0.1 R)
• M25: 24,291,403 km (0.087 R)
• M26: 25,903,320 km (0.102 R)
• M27: 26,567,684 km (0.044 R)
• M28: 27,073,325 km (0.108 R)
• M29: 27,757,436 km (0.093 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.2

Radius: 13.2

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.47 AU - 6.35 AU

Year: 5356 Days

Day: 13.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,364,406 km

• M1: 316,250 km (0.045 R)
• M2: 773,271 km (0.106 R)
• M3: 1,351,318 km (0.062 R)
• M4: 1,791,285 km (0.082 R)
• M5: 2,226,914 km (0.076 R)
• M6: 3,007,366 km (0.118 R)
• M7: 4,788,179 km (0.094 R)
• M8: 6,062,304 km (0.071 R)
• M9: 7,254,898 km (0.088 R)
• M10: 7,821,425 km (0.079 R)
• M11: 8,345,766 km (0.087 R)
• M12: 9,233,480 km (0.033 R)
• M13: 9,700,524 km (0.033 R)
• M14: 11,240,784 km (0.118 R)
• M15: 12,323,723 km (0.073 R)
• M16: 15,119,857 km (0.098 R)
• M17: 17,184,457 km (0.085 R)
• M18: 18,314,819 km (0.081 R)
• M19: 21,256,361 km (0.068 R)
• M20: 23,840,665 km (0.072 R)
• M21: 24,425,742 km (0.12 R)

Planet 10 - Gas Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450

Radius: 12.1

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.08 AU - 7.12 AU

Year: 5616 Days

Day: 12.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,364,406 km

• M1: 152,739 km (0.112 R)
• M2: 570,566 km (0.112 R)
• M3: 958,922 km (0.112 R)
• M4: 1,522,458 km (0.1 R)
• M5: 2,255,786 km (0.108 R)
• M6: 3,719,751 km (0.109 R)
• M7: 4,209,834 km (0.083 R)
• M8: 4,742,851 km (0.087 R)
• M9: 5,430,702 km (0.093 R)
• M10: 6,907,233 km (0.061 R)
• M11: 8,298,792 km (0.115 R)
• M12: 9,540,455 km (0.068 R)
• M13: 13,081,287 km (0.113 R)
• M14: 14,166,918 km (0.09 R)
• M15: 14,759,176 km (0.092 R)
• M16: 20,242,237 km (0.044 R)
• M17: 20,787,073 km (0.092 R)
• M18: 24,340,322 km (0.117 R)
• M19: 25,980,363 km (0.059 R)
• M20: 27,113,716 km (0.106 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 20,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit