🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.44 AU - 0.66 AU

Year: 145 Days

Day: 43.9 Hours

Environment

Temp: 246 °C

Axial Tilt: 84.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.97 AU - 1.45 AU

Year: 474 Days

Day: 42 Hours

Environment

Temp: 8 °C

Axial Tilt: 39.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.68 AU - 1.72 AU

Year: 790 Days

Day: 25.7 Hours

Environment

Temp: -48 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,178,782 km

• M1: 30,219 km (0.071 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.99 AU - 2.67 AU

Year: 1268 Days

Day: 42.7 Hours

Environment

Temp: -75 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.04 AU - 2.8 AU

Year: 1342 Days

Day: 20.9 Hours

Environment

Temp: -82 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.83 AU - 5.31 AU

Year: 3482 Days

Day: 30.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.2

Radius: 8.9

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.55 AU - 8.67 AU

Year: 6758 Days

Day: 14.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,178,782 km

• M1: 112,348 km (0.114 R)
• M2: 407,804 km (0.12 R)
• M3: 693,985 km (0.054 R)
• M4: 1,500,766 km (0.101 R)
• M5: 2,114,416 km (0.115 R)
• M6: 4,185,898 km (0.054 R)
• M7: 5,158,284 km (0.104 R)
• M8: 5,504,753 km (0.084 R)
• M9: 7,276,889 km (0.103 R)
• M10: 7,577,282 km (0.111 R)
• M11: 8,787,828 km (0.114 R)
• M12: 9,557,658 km (0.079 R)
• M13: 13,140,228 km (0.098 R)
• M14: 13,586,628 km (0.116 R)
• M15: 14,457,437 km (0.099 R)
• M16: 15,860,516 km (0.071 R)
• M17: 17,058,346 km (0.091 R)
• M18: 17,530,178 km (0.112 R)
• M19: 22,952,053 km (0.092 R)
• M20: 24,333,739 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975

Radius: 11

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 6.91 AU - 9.59 AU

Year: 8446 Days

Day: 9.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,178,782 km

• M1: 138,079 km (0.112 R)
• M2: 493,075 km (0.118 R)
• M3: 933,341 km (0.104 R)
• M4: 1,486,554 km (0.066 R)
• M5: 2,025,106 km (0.046 R)
• M6: 3,447,932 km (0.109 R)
• M7: 5,617,699 km (0.054 R)
• M8: 6,034,629 km (0.076 R)
• M9: 8,349,805 km (0.089 R)
• M10: 10,205,716 km (0.104 R)
• M11: 12,437,866 km (0.081 R)
• M12: 12,849,111 km (0.119 R)
• M13: 14,781,018 km (0.109 R)
• M14: 15,782,127 km (0.071 R)
• M15: 16,899,323 km (0.028 R)
• M16: 19,525,813 km (0.11 R)
• M17: 19,921,948 km (0.077 R)
• M18: 28,206,679 km (0.083 R)
• M19: 28,917,717 km (0.116 R)
• M20: 38,779,658 km (0.118 R)
• M21: 40,937,757 km (0.079 R)
• M22: 44,939,500 km (0.092 R)

Kuiper Belt

Range: 30.8 - 54.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 17,262 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit