🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.9

Radius: 14.8

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.55 AU - 0.75 AU

Year: 349 Days

Day: 5.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 164.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,101,419 km

• M1: 184,005 km (0.034 R)
• M2: 670,049 km (0.097 R)
• M3: 1,304,493 km (0.114 R)
• M4: 2,039,468 km (0.11 R)
• M5: 2,576,524 km (0.033 R)
• M6: 3,350,843 km (0.088 R)

Asteroid Belt

Center: 1.09 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.5

Radius: 10.1

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.3 AU - 1.76 AU

Year: 1262 Days

Day: 6.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,101,419 km

• M1: 125,662 km (0.084 R)
• M2: 481,256 km (0.112 R)
• M3: 837,898 km (0.118 R)
• M4: 1,283,251 km (0.106 R)
• M5: 1,634,357 km (0.108 R)
• M6: 3,026,515 km (0.102 R)
• M7: 3,377,770 km (0.036 R)
• M8: 4,058,740 km (0.09 R)
• M9: 4,674,933 km (0.103 R)
• M10: 5,980,474 km (0.083 R)
• M11: 8,529,771 km (0.078 R)
• M12: 9,175,286 km (0.118 R)
• M13: 10,399,146 km (0.072 R)
• M14: 11,135,916 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.1

Radius: 12.3

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.21 AU - 2.85 AU

Year: 2684 Days

Day: 6.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,101,419 km

• M1: 153,039 km (0.05 R)
• M2: 540,946 km (0.058 R)
• M3: 1,083,986 km (0.078 R)
• M4: 1,479,673 km (0.118 R)
• M5: 1,974,094 km (0.041 R)
• M6: 2,539,424 km (0.094 R)
• M7: 5,307,284 km (0.083 R)
• M8: 6,935,806 km (0.049 R)
• M9: 7,963,693 km (0.119 R)
• M10: 8,484,892 km (0.113 R)
• M11: 11,477,149 km (0.114 R)
• M12: 12,447,291 km (0.027 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.6

Radius: 12.9

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.06 AU - 3.16 AU

Year: 2812 Days

Day: 11.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,101,419 km

• M1: 160,519 km (0.11 R)
• M2: 644,318 km (0.106 R)
• M3: 1,089,671 km (0.112 R)
• M4: 2,111,125 km (0.103 R)
• M5: 2,880,956 km (0.109 R)
• M6: 3,287,563 km (0.074 R)
• M7: 3,791,259 km (0.116 R)
• M8: 4,346,267 km (0.062 R)
• M9: 5,802,453 km (0.081 R)
• M10: 6,316,770 km (0.111 R)
• M11: 8,243,740 km (0.105 R)
• M12: 9,143,721 km (0.059 R)
• M13: 10,069,732 km (0.05 R)
• M14: 10,975,996 km (0.072 R)
• M15: 11,935,965 km (0.096 R)
• M16: 12,770,572 km (0.115 R)
• M17: 13,410,103 km (0.101 R)
• M18: 14,753,192 km (0.084 R)
• M19: 15,818,180 km (0.03 R)
• M20: 18,044,046 km (0.07 R)
• M21: 18,733,244 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104

Radius: 8.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.75 AU - 2.91 AU

Year: 3175 Days

Day: 6 Hours

Environment

Temp: -217 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,101,419 km

• M1: 109,506 km (0.08 R)
• M2: 403,017 km (0.098 R)
• M3: 726,298 km (0.051 R)
• M4: 1,421,629 km (0.069 R)
• M5: 1,894,807 km (0.038 R)
• M6: 2,852,083 km (0.061 R)
• M7: 3,407,690 km (0.063 R)
• M8: 5,083,635 km (0.035 R)
• M9: 5,747,849 km (0.1 R)
• M10: 6,658,152 km (0.108 R)
• M11: 7,847,007 km (0.069 R)
• M12: 8,226,985 km (0.105 R)
• M13: 9,350,765 km (0.049 R)
• M14: 9,654,747 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.6

Radius: 13.8

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.92 AU - 3.04 AU

Year: 3430 Days

Day: 10.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,101,419 km

• M1: 171,738 km (0.115 R)
• M2: 954,883 km (0.059 R)
• M3: 1,692,850 km (0.063 R)
• M4: 2,241,126 km (0.095 R)
• M5: 2,823,660 km (0.097 R)
• M6: 3,260,934 km (0.071 R)
• M7: 3,804,872 km (0.055 R)
• M8: 5,152,749 km (0.115 R)
• M9: 6,616,564 km (0.104 R)
• M10: 7,792,553 km (0.092 R)
• M11: 9,405,368 km (0.11 R)
• M12: 11,273,995 km (0.11 R)
• M13: 11,933,871 km (0.058 R)
• M14: 16,281,783 km (0.044 R)
• M15: 20,600,225 km (0.076 R)
• M16: 21,721,461 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.6

Radius: 14.5

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.07 AU - 5.59 AU

Year: 7079 Days

Day: 8.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,101,419 km

• M1: 181,163 km (0.098 R)
• M2: 701,016 km (0.107 R)
• M3: 2,427,824 km (0.111 R)
• M4: 3,115,974 km (0.085 R)
• M5: 4,016,703 km (0.055 R)
• M6: 5,823,696 km (0.044 R)
• M7: 8,193,625 km (0.115 R)
• M8: 8,801,591 km (0.078 R)
• M9: 12,031,558 km (0.084 R)
• M10: 18,581,552 km (0.089 R)
• M11: 21,788,182 km (0.031 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.6

Radius: 5.6

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 6.13 AU - 6.59 AU

Year: 10696 Days

Day: 21.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,101,419 km

• M1: 78,838 km (0.099 R)
• M2: 823,087 km (0.098 R)
• M3: 1,317,060 km (0.109 R)
• M4: 3,319,577 km (0.051 R)
• M5: 3,941,156 km (0.026 R)
• M6: 4,246,036 km (0.081 R)
• M7: 5,816,964 km (0.066 R)
• M8: 6,417,001 km (0.081 R)
• M9: 7,840,424 km (0.118 R)
• M10: 11,688,082 km (0.087 R)
• M11: 15,326,152 km (0.109 R)
• M12: 18,190,503 km (0.118 R)
• M13: 21,658,630 km (0.111 R)
• M14: 22,606,931 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.4

Radius: 4.7

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 6.95 AU - 8.13 AU

Year: 13807 Days

Day: 23 Hours

Environment

Temp: -233 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,101,419 km

• M1: 59,839 km (0.051 R)
• M2: 387,458 km (0.104 R)
• M3: 1,216,380 km (0.045 R)
• M4: 1,882,540 km (0.097 R)
• M5: 4,014,758 km (0.082 R)
• M6: 8,733,972 km (0.085 R)
• M7: 11,735,205 km (0.078 R)
• M8: 13,356,247 km (0.051 R)
• M9: 13,686,410 km (0.068 R)
• M10: 15,120,754 km (0.042 R)
• M11: 15,419,202 km (0.033 R)
• M12: 17,034,859 km (0.054 R)
• M13: 18,083,391 km (0.103 R)
• M14: 22,864,539 km (0.09 R)
• M15: 28,514,850 km (0.081 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 11,017 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit