🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.6 AU - 0.92 AU

Year: 242 Days

Day: 27.4 Hours

Environment

Temp: 115 °C

Axial Tilt: 27.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 108,872,358 km

• M1: 526,285 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.11 AU - 2.99 AU

Year: 1487 Days

Day: 36.5 Hours

Environment

Temp: -86 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 108,872,358 km

• M1: 239,506 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2 AU - 3.16 AU

Year: 1514 Days

Day: 46.1 Hours

Environment

Temp: -86 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 108,872,358 km

• M1: 1,001,558 km (0.096 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.05 AU - 4.99 AU

Year: 3510 Days

Day: 39.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 108,872,358 km

• M1: 87,365 km (0.073 R)

Asteroid Belt

Center: 6.91 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 8.9

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 8.22 AU - 10.36 AU

Year: 10342 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 108,872,358 km

• M1: 110,702 km (0.072 R)
• M2: 628,909 km (0.085 R)
• M3: 995,125 km (0.1 R)
• M4: 1,644,380 km (0.094 R)
• M5: 2,158,398 km (0.104 R)
• M6: 2,515,937 km (0.058 R)
• M7: 3,529,762 km (0.025 R)
• M8: 4,053,654 km (0.085 R)
• M9: 4,964,555 km (0.099 R)
• M10: 5,286,639 km (0.099 R)
• M11: 5,844,041 km (0.117 R)
• M12: 6,137,253 km (0.071 R)
• M13: 6,717,842 km (0.067 R)
• M14: 7,909,688 km (0.093 R)
• M15: 10,755,189 km (0.065 R)
• M16: 11,649,934 km (0.08 R)
• M17: 12,539,892 km (0.093 R)
• M18: 13,701,071 km (0.077 R)
• M19: 14,573,226 km (0.069 R)
• M20: 15,297,130 km (0.077 R)
• M21: 16,492,268 km (0.105 R)
• M22: 17,816,358 km (0.117 R)
• M23: 19,714,307 km (0.064 R)
• M24: 21,977,124 km (0.045 R)
• M25: 22,528,991 km (0.1 R)
• M26: 23,825,106 km (0.071 R)
• M27: 26,123,977 km (0.083 R)
• M28: 36,144,641 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.2

Radius: 4.2

Gravity: 43.95 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 12.36 AU - 17.74 AU

Year: 21325 Days

Day: 18.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 108,872,358 km

• M1: 52,210 km (0.113 R)
• M2: 191,635 km (0.084 R)
• M3: 325,824 km (0.057 R)
• M4: 503,098 km (0.091 R)
• M5: 862,731 km (0.069 R)
• M6: 1,791,135 km (0.067 R)
• M7: 2,540,022 km (0.114 R)
• M8: 3,217,551 km (0.111 R)
• M9: 3,598,128 km (0.102 R)
• M10: 4,008,176 km (0.057 R)
• M11: 4,140,420 km (0.084 R)
• M12: 4,808,824 km (0.105 R)
• M13: 6,267,552 km (0.099 R)
• M14: 9,663,723 km (0.107 R)
• M15: 11,348,943 km (0.079 R)
• M16: 12,088,406 km (0.05 R)
• M17: 12,505,036 km (0.106 R)
• M18: 13,075,303 km (0.084 R)
• M19: 13,588,274 km (0.075 R)
• M20: 15,048,349 km (0.098 R)
• M21: 15,449,271 km (0.107 R)
• M22: 16,356,433 km (0.033 R)
• M23: 19,009,850 km (0.059 R)
• M24: 20,634,034 km (0.107 R)
• M25: 22,765,056 km (0.11 R)
• M26: 23,937,754 km (0.116 R)
• M27: 27,816,378 km (0.108 R)
• M28: 28,663,850 km (0.106 R)
• M29: 44,988,867 km (0.092 R)
• M30: 45,320,077 km (0.12 R)
• M31: 47,171,051 km (0.065 R)
• M32: 55,078,944 km (0.116 R)
• M33: 55,268,185 km (0.09 R)
• M34: 55,648,164 km (0.089 R)
• M35: 56,413,207 km (0.091 R)
• M36: 56,605,590 km (0.081 R)
• M37: 57,379,310 km (0.044 R)
• M38: 58,948,143 km (0.101 R)
• M39: 60,545,101 km (0.106 R)
• M40: 70,069,249 km (0.108 R)
• M41: 80,057,600 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 466.1

Radius: 6.1

Gravity: 12.53 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 14.97 AU - 20.97 AU

Year: 27824 Days

Day: 22.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 108,872,358 km

• M1: 87,515 km (0.108 R)
• M2: 351,555 km (0.106 R)
• M3: 656,435 km (0.111 R)
• M4: 1,789,939 km (0.102 R)
• M5: 2,705,178 km (0.115 R)
• M6: 4,296,600 km (0.119 R)
• M7: 5,018,560 km (0.109 R)
• M8: 5,368,768 km (0.108 R)
• M9: 5,945,767 km (0.097 R)
• M10: 7,077,475 km (0.075 R)
• M11: 7,369,191 km (0.101 R)
• M12: 8,239,402 km (0.117 R)
• M13: 9,348,670 km (0.082 R)
• M14: 9,819,155 km (0.081 R)
• M15: 11,792,052 km (0.075 R)
• M16: 12,271,663 km (0.102 R)
• M17: 12,907,155 km (0.108 R)
• M18: 15,752,057 km (0.031 R)
• M19: 17,451,489 km (0.106 R)
• M20: 17,984,207 km (0.099 R)
• M21: 19,552,741 km (0.112 R)
• M22: 20,418,913 km (0.078 R)
• M23: 21,210,136 km (0.11 R)
• M24: 22,227,700 km (0.082 R)
• M25: 24,580,127 km (0.096 R)
• M26: 25,930,697 km (0.066 R)
• M27: 31,960,837 km (0.078 R)
• M28: 32,757,895 km (0.082 R)
• M29: 33,568,117 km (0.113 R)
• M30: 34,530,330 km (0.114 R)
• M31: 37,380,319 km (0.109 R)
• M32: 39,163,526 km (0.115 R)
• M33: 40,537,582 km (0.102 R)
• M34: 53,075,380 km (0.092 R)
• M35: 58,225,436 km (0.114 R)
• M36: 61,429,374 km (0.12 R)
• M37: 64,327,533 km (0.107 R)
• M38: 64,537,868 km (0.111 R)
• M39: 75,655,084 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 804

Radius: 3.2

Gravity: 78.52 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 17.86 AU - 21.26 AU

Year: 31597 Days

Day: 15.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 108,872,358 km

• M1: 41,289 km (0.107 R)
• M2: 268,079 km (0.115 R)
• M3: 371,601 km (0.077 R)
• M4: 613,202 km (0.045 R)
• M5: 728,841 km (0.066 R)
• M6: 1,214,585 km (0.046 R)
• M7: 1,563,148 km (0.075 R)
• M8: 3,572,696 km (0.079 R)
• M9: 4,626,464 km (0.105 R)
• M10: 5,419,482 km (0.115 R)
• M11: 6,396,805 km (0.105 R)
• M12: 8,335,593 km (0.094 R)
• M13: 11,484,030 km (0.113 R)
• M14: 11,925,942 km (0.065 R)
• M15: 23,665,336 km (0.047 R)
• M16: 25,478,911 km (0.099 R)
• M17: 25,852,307 km (0.109 R)
• M18: 26,866,132 km (0.093 R)
• M19: 27,252,992 km (0.088 R)
• M20: 35,482,221 km (0.06 R)
• M21: 45,041,376 km (0.041 R)
• M22: 57,663,995 km (0.106 R)
• M23: 58,522,837 km (0.093 R)
• M24: 82,052,787 km (0.09 R)
• M25: 100,912,291 km (0.104 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 10,824 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit