🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.42 AU - 0.64 AU

Year: 245 Days

Day: 19.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,174,520 km

• M1: 283,039 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.5 AU - 0.58 AU

Year: 252 Days

Day: 12 Hours

Environment

Temp: -116 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,174,520 km

• M1: 143,764 km (0.084 R)
• M2: 433,385 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.6

Radius: 13

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.76 AU - 0.9 AU

Year: 481 Days

Day: 12.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,174,520 km

• M1: 161,865 km (0.119 R)
• M2: 655,837 km (0.098 R)
• M3: 1,070,074 km (0.102 R)
• M4: 1,481,468 km (0.091 R)
• M5: 2,009,548 km (0.109 R)
• M6: 2,474,798 km (0.113 R)
• M7: 3,564,618 km (0.11 R)
• M8: 4,032,710 km (0.12 R)
• M9: 4,512,620 km (0.088 R)
• M10: 5,882,039 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.6

Radius: 13.8

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.77 AU - 0.93 AU

Year: 498 Days

Day: 7.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,174,520 km

• M1: 171,888 km (0.082 R)
• M2: 657,782 km (0.082 R)
• M3: 1,348,176 km (0.101 R)
• M4: 1,804,749 km (0.075 R)
• M5: 3,190,175 km (0.102 R)
• M6: 3,758,497 km (0.103 R)
• M7: 4,281,042 km (0.112 R)
• M8: 4,745,843 km (0.076 R)
• M9: 5,292,922 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 8.2

Gravity: 12.36 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.84 AU - 1.2 AU

Year: 655 Days

Day: 12.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,174,520 km

• M1: 102,026 km (0.054 R)
• M2: 360,830 km (0.09 R)
• M3: 688,449 km (0.043 R)
• M4: 1,055,563 km (0.114 R)
• M5: 1,711,250 km (0.112 R)
• M6: 2,450,264 km (0.096 R)
• M7: 3,001,681 km (0.103 R)
• M8: 3,481,142 km (0.118 R)
• M9: 4,025,828 km (0.107 R)
• M10: 4,560,192 km (0.092 R)
• M11: 5,598,850 km (0.092 R)
• M12: 5,886,527 km (0.118 R)
• M13: 6,204,123 km (0.092 R)
• M14: 7,590,746 km (0.108 R)
• M15: 8,087,710 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.1

Radius: 11

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.6 AU - 2.08 AU

Year: 1587 Days

Day: 9.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 144.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,174,520 km

• M1: 137,331 km (0.114 R)
• M2: 580,889 km (0.105 R)
• M3: 942,915 km (0.071 R)
• M4: 1,585,139 km (0.07 R)
• M5: 1,968,558 km (0.106 R)
• M6: 2,317,421 km (0.109 R)
• M7: 3,098,770 km (0.107 R)
• M8: 3,527,219 km (0.064 R)
• M9: 3,960,155 km (0.12 R)
• M10: 4,335,645 km (0.095 R)
• M11: 6,176,746 km (0.069 R)
• M12: 6,585,149 km (0.082 R)
• M13: 7,140,456 km (0.113 R)
• M14: 8,905,112 km (0.104 R)
• M15: 9,872,711 km (0.074 R)
• M16: 11,117,815 km (0.056 R)
• M17: 12,164,700 km (0.055 R)
• M18: 13,001,701 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.7

Radius: 14.2

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.61 AU - 7.11 AU

Year: 9019 Days

Day: 7.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,174,520 km

• M1: 176,675 km (0.101 R)
• M2: 1,071,121 km (0.112 R)
• M3: 1,912,010 km (0.071 R)
• M4: 2,576,524 km (0.109 R)
• M5: 3,161,901 km (0.078 R)
• M6: 3,887,301 km (0.111 R)
• M7: 4,662,218 km (0.118 R)
• M8: 5,538,263 km (0.101 R)
• M9: 6,229,405 km (0.084 R)
• M10: 6,823,009 km (0.081 R)
• M11: 9,018,358 km (0.097 R)
• M12: 9,731,192 km (0.114 R)
• M13: 11,323,362 km (0.097 R)
• M14: 14,060,105 km (0.085 R)
• M15: 14,824,251 km (0.114 R)
• M16: 16,715,019 km (0.116 R)
• M17: 17,283,640 km (0.103 R)
• M18: 18,160,733 km (0.104 R)
• M19: 20,403,055 km (0.12 R)
• M20: 21,052,908 km (0.104 R)
• M21: 22,393,904 km (0.086 R)
• M22: 23,524,864 km (0.089 R)
• M23: 25,431,788 km (0.034 R)
• M24: 27,833,881 km (0.109 R)
• M25: 29,654,786 km (0.089 R)
• M26: 34,781,804 km (0.098 R)
• M27: 35,592,924 km (0.093 R)
• M28: 37,494,014 km (0.102 R)
• M29: 41,110,991 km (0.032 R)
• M30: 42,017,704 km (0.095 R)
• M31: 46,055,500 km (0.074 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: 221 - 15,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit