🌌 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: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.5 AU - 0.52 AU

Year: 134 Days

Day: 31.4 Hours

Environment

Temp: 173 °C

Axial Tilt: 41.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.47 AU - 0.59 AU

Year: 142 Days

Day: 47.5 Hours

Environment

Temp: 235 °C

Axial Tilt: 10.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.85 AU - 0.87 AU

Year: 293 Days

Day: 29 Hours

Environment

Temp: 112 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 51,595,060 km

• M1: 476,170 km (0.072 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.45 AU - 2.21 AU

Year: 909 Days

Day: 12.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,595,060 km

• M1: 40,092 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.16 AU - 5.2 AU

Year: 3717 Days

Day: 37.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.53 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.7

Radius: 8.6

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 6.12 AU - 6.64 AU

Year: 5916 Days

Day: 14.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,595,060 km

• M1: 107,262 km (0.037 R)
• M2: 487,539 km (0.119 R)
• M3: 1,107,772 km (0.113 R)
• M4: 1,446,911 km (0.11 R)
• M5: 2,654,165 km (0.066 R)
• M6: 3,230,117 km (0.065 R)
• M7: 3,709,279 km (0.03 R)
• M8: 5,156,938 km (0.118 R)
• M9: 5,665,271 km (0.09 R)
• M10: 6,083,547 km (0.092 R)
• M11: 8,150,990 km (0.063 R)
• M12: 9,119,935 km (0.118 R)
• M13: 9,737,026 km (0.074 R)
• M14: 11,708,427 km (0.117 R)
• M15: 11,996,403 km (0.104 R)
• M16: 17,335,850 km (0.054 R)
• M17: 18,932,059 km (0.11 R)
• M18: 22,933,802 km (0.097 R)
• M19: 24,383,855 km (0.061 R)
• M20: 27,804,559 km (0.063 R)
• M21: 29,187,741 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.2

Radius: 11.2

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.02 AU - 11.48 AU

Year: 12046 Days

Day: 13.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,595,060 km

• M1: 145,110 km (0.107 R)
• M2: 524,939 km (0.042 R)
• M3: 907,161 km (0.03 R)
• M4: 1,662,332 km (0.109 R)
• M5: 2,273,588 km (0.104 R)
• M6: 3,721,845 km (0.092 R)
• M7: 5,934,996 km (0.069 R)
• M8: 6,361,799 km (0.072 R)
• M9: 12,763,990 km (0.044 R)
• M10: 14,216,734 km (0.108 R)
• M11: 14,771,443 km (0.066 R)
• M12: 17,606,024 km (0.101 R)
• M13: 18,818,515 km (0.114 R)
• M14: 22,696,391 km (0.107 R)
• M15: 24,034,095 km (0.047 R)
• M16: 25,626,564 km (0.11 R)
• M17: 27,607,689 km (0.067 R)
• M18: 37,206,486 km (0.086 R)
• M19: 43,106,776 km (0.07 R)
• M20: 44,858,268 km (0.107 R)
• M21: 46,202,854 km (0.116 R)
• M22: 49,128,988 km (0.073 R)
• M23: 52,669,222 km (0.078 R)
• M24: 54,165,200 km (0.114 R)
• M25: 58,469,281 km (0.057 R)
• M26: 59,000,503 km (0.077 R)
• M27: 59,535,165 km (0.053 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.9

Radius: 9.1

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 9.17 AU - 12.35 AU

Year: 12957 Days

Day: 6.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 51,595,060 km

• M1: 113,246 km (0.027 R)
• M2: 518,805 km (0.027 R)
• M3: 833,859 km (0.067 R)
• M4: 1,330,224 km (0.114 R)
• M5: 1,929,813 km (0.081 R)
• M6: 2,282,864 km (0.038 R)
• M7: 3,190,623 km (0.095 R)
• M8: 5,189,849 km (0.087 R)
• M9: 6,471,454 km (0.096 R)
• M10: 7,063,563 km (0.09 R)
• M11: 7,734,360 km (0.08 R)
• M12: 11,457,103 km (0.098 R)
• M13: 11,741,189 km (0.116 R)
• M14: 12,382,814 km (0.071 R)
• M15: 13,735,777 km (0.085 R)
• M16: 18,075,911 km (0.104 R)
• M17: 18,539,066 km (0.098 R)
• M18: 20,471,571 km (0.066 R)
• M19: 22,006,296 km (0.073 R)
• M20: 24,170,079 km (0.095 R)
• M21: 26,274,772 km (0.1 R)
• M22: 27,472,751 km (0.098 R)
• M23: 33,202,350 km (0.118 R)
• M24: 33,897,382 km (0.108 R)
• M25: 35,196,639 km (0.1 R)
• M26: 36,528,808 km (0.035 R)
• M27: 41,389,542 km (0.097 R)
• M28: 43,146,719 km (0.069 R)
• M29: 43,697,239 km (0.05 R)
• M30: 49,914,826 km (0.117 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: 505 - 12,556 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit