🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.8

Radius: 10.4

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.74 AU - 0.78 AU

Year: 428 Days

Day: 11.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,443,768 km

• M1: 129,402 km (0.118 R)
• M2: 499,806 km (0.111 R)
• M3: 876,344 km (0.062 R)
• M4: 1,240,466 km (0.037 R)
• M5: 1,943,576 km (0.101 R)
• M6: 2,655,362 km (0.107 R)
• M7: 3,158,460 km (0.045 R)
• M8: 4,438,868 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.7

Radius: 11.5

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.65 AU - 1.07 AU

Year: 515 Days

Day: 9.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,443,768 km

• M1: 143,016 km (0.117 R)
• M2: 525,537 km (0.073 R)
• M3: 910,153 km (0.115 R)
• M4: 1,322,894 km (0.096 R)
• M5: 1,719,927 km (0.111 R)
• M6: 2,086,741 km (0.053 R)
• M7: 2,583,406 km (0.111 R)
• M8: 3,579,279 km (0.11 R)
• M9: 4,268,177 km (0.103 R)
• M10: 4,770,227 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.9

Radius: 12.1

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.76 AU - 1.26 AU

Year: 655 Days

Day: 13.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,443,768 km

• M1: 150,495 km (0.116 R)
• M2: 600,336 km (0.106 R)
• M3: 984,803 km (0.032 R)
• M4: 1,450,950 km (0.096 R)
• M5: 2,239,181 km (0.096 R)
• M6: 2,661,197 km (0.061 R)
• M7: 3,270,060 km (0.078 R)
• M8: 4,098,682 km (0.103 R)
• M9: 4,979,515 km (0.108 R)
• M10: 5,688,010 km (0.105 R)
• M11: 6,228,956 km (0.103 R)
• M12: 7,073,287 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.4

Radius: 8.8

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.96 AU - 1.2 AU

Year: 725 Days

Day: 9.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,443,768 km

• M1: 109,506 km (0.057 R)
• M2: 387,608 km (0.084 R)
• M3: 756,367 km (0.041 R)
• M4: 1,186,311 km (0.09 R)
• M5: 1,477,877 km (0.075 R)
• M6: 2,240,827 km (0.056 R)
• M7: 2,634,867 km (0.098 R)
• M8: 2,910,277 km (0.091 R)
• M9: 3,825,367 km (0.112 R)
• M10: 4,903,070 km (0.111 R)
• M11: 5,248,043 km (0.074 R)
• M12: 5,647,918 km (0.066 R)
• M13: 6,573,779 km (0.088 R)
• M14: 6,903,942 km (0.04 R)
• M15: 7,597,627 km (0.098 R)
• M16: 8,464,547 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.4

Radius: 10.3

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.51 AU - 6.01 AU

Year: 8926 Days

Day: 14.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,443,768 km

• M1: 128,355 km (0.082 R)
• M2: 532,269 km (0.071 R)
• M3: 1,172,548 km (0.076 R)
• M4: 1,829,582 km (0.03 R)
• M5: 3,445,987 km (0.071 R)
• M6: 4,764,842 km (0.079 R)
• M7: 5,702,820 km (0.103 R)
• M8: 6,459,187 km (0.057 R)
• M9: 7,174,714 km (0.111 R)
• M10: 8,602,626 km (0.039 R)
• M11: 8,925,907 km (0.093 R)
• M12: 10,758,929 km (0.032 R)
• M13: 14,922,088 km (0.066 R)
• M14: 15,567,753 km (0.077 R)
• M15: 16,109,746 km (0.107 R)
• M16: 22,092,614 km (0.082 R)
• M17: 22,931,558 km (0.113 R)
• M18: 30,610,417 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964.9

Radius: 5.2

Gravity: 35.68 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.9 AU - 9.22 AU

Year: 13421 Days

Day: 24 Hours

Environment

Temp: -233 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,443,768 km

• M1: 64,776 km (0.086 R)
• M2: 414,685 km (0.104 R)
• M3: 1,037,012 km (0.086 R)
• M4: 1,707,510 km (0.114 R)
• M5: 2,164,980 km (0.034 R)
• M6: 2,937,653 km (0.105 R)
• M7: 4,468,040 km (0.108 R)
• M8: 4,766,637 km (0.044 R)
• M9: 5,185,361 km (0.057 R)
• M10: 10,292,034 km (0.03 R)
• M11: 11,844,711 km (0.086 R)
• M12: 12,940,365 km (0.109 R)
• M13: 15,630,584 km (0.103 R)
• M14: 23,243,919 km (0.048 R)
• M15: 23,539,823 km (0.086 R)
• M16: 30,584,686 km (0.028 R)
• M17: 30,939,981 km (0.082 R)
• M18: 36,472,858 km (0.033 R)
• M19: 37,544,877 km (0.059 R)
• M20: 49,607,851 km (0.093 R)
• M21: 55,533,572 km (0.064 R)
• M22: 65,377,710 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.8

Radius: 6.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 8.41 AU - 10.99 AU

Year: 19506 Days

Day: 22.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,443,768 km

• M1: 76,295 km (0.112 R)
• M2: 286,480 km (0.117 R)
• M3: 1,150,108 km (0.089 R)
• M4: 1,549,385 km (0.041 R)
• M5: 1,845,140 km (0.11 R)
• M6: 2,358,859 km (0.076 R)
• M7: 3,063,764 km (0.093 R)
• M8: 4,742,851 km (0.056 R)
• M9: 4,992,380 km (0.11 R)
• M10: 5,887,873 km (0.076 R)
• M11: 6,816,128 km (0.093 R)
• M12: 7,098,419 km (0.096 R)
• M13: 9,043,042 km (0.094 R)
• M14: 13,946,112 km (0.052 R)
• M15: 14,749,452 km (0.12 R)
• M16: 21,556,754 km (0.052 R)
• M17: 21,935,835 km (0.088 R)
• M18: 30,482,361 km (0.117 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 13,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit