🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.86 AU - 1.3 AU

Year: 416 Days

Day: 33.3 Hours

Environment

Temp: 4 °C

Axial Tilt: 32.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.04 AU - 1.48 AU

Year: 525 Days

Day: 22.8 Hours

Environment

Temp: -12 °C

Axial Tilt: 4.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.37 AU - 2.09 AU

Year: 844 Days

Day: 43.9 Hours

Environment

Temp: -53 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,905,717 km

• M1: 258,206 km (0.066 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.81 AU - 2.47 AU

Year: 1161 Days

Day: 25.2 Hours

Environment

Temp: -81 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,905,717 km

• M1: 65,374 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.7

Radius: 14.7

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.43 AU - 5.47 AU

Year: 4084 Days

Day: 12.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,905,717 km

• M1: 187,596 km (0.084 R)
• M2: 1,220,569 km (0.101 R)
• M3: 3,738,451 km (0.075 R)
• M4: 6,210,855 km (0.12 R)
• M5: 6,774,689 km (0.084 R)
• M6: 8,005,580 km (0.098 R)
• M7: 8,674,582 km (0.114 R)
• M8: 9,461,617 km (0.088 R)
• M9: 10,686,973 km (0.081 R)
• M10: 11,499,289 km (0.076 R)
• M11: 13,710,794 km (0.12 R)
• M12: 14,399,543 km (0.071 R)
• M13: 17,023,340 km (0.05 R)
• M14: 17,633,400 km (0.096 R)
• M15: 19,884,549 km (0.111 R)
• M16: 23,800,124 km (0.095 R)
• M17: 25,501,201 km (0.119 R)
• M18: 27,364,891 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.3

Radius: 12.1

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 9.33 AU - 13.71 AU

Year: 14501 Days

Day: 13 Hours

Environment

Temp: -189 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,905,717 km

• M1: 996,023 km (0.107 R)
• M2: 1,652,757 km (0.111 R)
• M3: 2,185,774 km (0.118 R)
• M4: 2,768,458 km (0.109 R)
• M5: 8,583,477 km (0.1 R)
• M6: 12,744,991 km (0.1 R)
• M7: 14,832,180 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.1

Radius: 3.9

Gravity: 56.09 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 12.04 AU - 15.66 AU

Year: 19115 Days

Day: 21.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 33,905,717 km

• M1: 48,919 km (0.109 R)
• M2: 231,129 km (0.028 R)
• M3: 373,695 km (0.063 R)
• M4: 503,846 km (0.079 R)
• M5: 1,001,857 km (0.089 R)
• M6: 1,542,504 km (0.078 R)
• M7: 1,681,480 km (0.051 R)
• M8: 4,508,281 km (0.118 R)
• M9: 5,971,947 km (0.094 R)
• M10: 9,273,871 km (0.116 R)
• M11: 10,030,986 km (0.088 R)
• M12: 11,339,519 km (0.118 R)
• M13: 12,068,509 km (0.107 R)
• M14: 13,040,746 km (0.065 R)
• M15: 13,327,973 km (0.037 R)
• M16: 13,545,938 km (0.028 R)
• M17: 16,518,298 km (0.113 R)
• M18: 19,336,123 km (0.109 R)
• M19: 20,278,291 km (0.102 R)
• M20: 20,955,819 km (0.101 R)
• M21: 23,288,050 km (0.105 R)
• M22: 27,864,249 km (0.096 R)
• M23: 28,821,975 km (0.1 R)
• M24: 30,676,539 km (0.071 R)
• M25: 31,056,668 km (0.1 R)
• M26: 33,404,157 km (0.116 R)
• M27: 40,844,856 km (0.102 R)
• M28: 42,863,680 km (0.11 R)
• M29: 44,947,877 km (0.118 R)
• M30: 47,266,943 km (0.026 R)
• M31: 47,435,690 km (0.074 R)
• M32: 48,971,461 km (0.11 R)
• M33: 49,490,716 km (0.088 R)
• M34: 61,259,879 km (0.087 R)
• M35: 61,661,250 km (0.113 R)
• M36: 66,403,952 km (0.085 R)
• M37: 68,755,780 km (0.094 R)
• M38: 72,274,770 km (0.101 R)
• M39: 78,246,119 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.9

Radius: 8

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 11.76 AU - 18.7 AU

Year: 22042 Days

Day: 23.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,905,717 km

• M1: 138,677 km (0.079 R)
• M2: 857,645 km (0.074 R)
• M3: 1,238,670 km (0.064 R)
• M4: 1,637,648 km (0.075 R)
• M5: 9,556,013 km (0.075 R)
• M6: 25,240,452 km (0.115 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 14,522 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit