🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.56 AU - 0.68 AU

Year: 218 Days

Day: 43.5 Hours

Environment

Temp: -11 °C

Axial Tilt: 37.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 48,377,588 km

• M1: 278,850 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.59 AU - 0.67 AU

Year: 223 Days

Day: 12 Hours

Environment

Temp: -3 °C

Axial Tilt: 20.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.57 AU - 0.77 AU

Year: 245 Days

Day: 30.2 Hours

Environment

Temp: -4 °C

Axial Tilt: 20.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.82 AU - 0.84 AU

Year: 337 Days

Day: 41.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 48,377,588 km

• M1: 59,241 km (0.037 R)
• M2: 655,388 km (0.09 R)

Planet 5 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.85 AU - 1.01 AU

Year: 400 Days

Day: 45.1 Hours

Environment

Temp: -55 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.75 AU - 1.23 AU

Year: 440 Days

Day: 28.6 Hours

Environment

Temp: -57 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,377,588 km

• M1: 32,014 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 10.9

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.98 AU - 3.26 AU

Year: 1892 Days

Day: 7.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,377,588 km

• M1: 135,536 km (0.055 R)
• M2: 531,671 km (0.118 R)
• M3: 895,343 km (0.109 R)
• M4: 1,312,871 km (0.09 R)
• M5: 2,094,669 km (0.069 R)
• M6: 2,556,628 km (0.089 R)
• M7: 3,320,923 km (0.104 R)
• M8: 3,827,462 km (0.1 R)
• M9: 4,724,450 km (0.092 R)
• M10: 5,803,201 km (0.115 R)
• M11: 6,799,822 km (0.05 R)
• M12: 8,565,076 km (0.1 R)
• M13: 9,194,584 km (0.079 R)
• M14: 10,058,961 km (0.119 R)
• M15: 11,012,946 km (0.119 R)
• M16: 11,987,577 km (0.069 R)
• M17: 12,496,060 km (0.1 R)
• M18: 13,682,221 km (0.057 R)
• M19: 14,499,175 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 13.4

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.52 AU - 3.6 AU

Year: 2997 Days

Day: 9.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,377,588 km

• M1: 167,250 km (0.086 R)
• M2: 673,490 km (0.042 R)
• M3: 1,323,193 km (0.104 R)
• M4: 1,914,404 km (0.096 R)
• M5: 2,743,176 km (0.075 R)
• M6: 3,483,686 km (0.109 R)
• M7: 5,547,687 km (0.066 R)
• M8: 7,010,755 km (0.057 R)
• M9: 10,894,764 km (0.112 R)
• M10: 11,318,724 km (0.042 R)
• M11: 13,173,888 km (0.075 R)
• M12: 14,552,282 km (0.102 R)
• M13: 16,797,447 km (0.12 R)
• M14: 20,713,920 km (0.09 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.6

Radius: 10

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.24 AU - 8.4 AU

Year: 9758 Days

Day: 13.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 48,377,588 km

• M1: 124,316 km (0.072 R)
• M2: 719,117 km (0.116 R)
• M3: 1,922,333 km (0.052 R)
• M4: 2,451,610 km (0.113 R)
• M5: 2,814,086 km (0.079 R)
• M6: 3,648,542 km (0.059 R)
• M7: 4,550,767 km (0.102 R)
• M8: 5,801,256 km (0.052 R)
• M9: 6,525,160 km (0.093 R)
• M10: 8,873,697 km (0.11 R)
• M11: 9,202,363 km (0.075 R)
• M12: 10,862,900 km (0.08 R)
• M13: 12,018,394 km (0.112 R)
• M14: 12,655,381 km (0.107 R)
• M15: 13,012,322 km (0.096 R)
• M16: 13,808,631 km (0.088 R)
• M17: 15,566,107 km (0.059 R)
• M18: 16,533,706 km (0.097 R)
• M19: 17,910,605 km (0.101 R)
• M20: 18,512,587 km (0.037 R)
• M21: 19,598,518 km (0.113 R)
• M22: 20,644,506 km (0.115 R)
• M23: 22,934,999 km (0.103 R)
• M24: 23,466,221 km (0.113 R)
• M25: 25,015,756 km (0.072 R)
• M26: 26,054,115 km (0.106 R)
• M27: 26,438,731 km (0.114 R)
• M28: 27,120,897 km (0.078 R)
• M29: 27,914,813 km (0.101 R)
• M30: 28,929,087 km (0.064 R)
• M31: 30,178,229 km (0.085 R)
• M32: 30,495,975 km (0.118 R)
• M33: 33,458,013 km (0.098 R)
• M34: 38,438,574 km (0.047 R)
• M35: 41,626,206 km (0.097 R)
• M36: 47,800,858 km (0.078 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 11,399 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit