🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.51 AU - 0.83 AU

Year: 354 Days

Day: 23.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.5

Radius: 11.5

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.57 AU - 0.79 AU

Year: 362 Days

Day: 10.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,794,992 km

• M1: 143,016 km (0.033 R)
• M2: 520,451 km (0.096 R)
• M3: 880,084 km (0.062 R)
• M4: 1,564,195 km (0.104 R)
• M5: 2,277,029 km (0.073 R)
• M6: 2,783,418 km (0.057 R)
• M7: 3,307,310 km (0.114 R)
• M8: 3,985,886 km (0.036 R)
• M9: 4,553,909 km (0.047 R)
• M10: 4,947,202 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.7

Radius: 11.1

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.42 AU - 1.54 AU

Year: 1163 Days

Day: 7.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,794,992 km

• M1: 138,378 km (0.074 R)
• M2: 533,017 km (0.044 R)
• M3: 1,100,292 km (0.113 R)
• M4: 1,467,106 km (0.119 R)
• M5: 2,029,295 km (0.102 R)
• M6: 4,874,347 km (0.081 R)
• M7: 5,574,465 km (0.099 R)
• M8: 6,029,991 km (0.098 R)
• M9: 8,081,576 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.4

Radius: 12.1

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.41 AU - 1.67 AU

Year: 1234 Days

Day: 9.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,794,992 km

• M1: 150,645 km (0.118 R)
• M2: 564,582 km (0.078 R)
• M3: 1,091,167 km (0.114 R)
• M4: 1,527,544 km (0.113 R)
• M5: 2,020,319 km (0.085 R)
• M6: 2,843,257 km (0.086 R)
• M7: 3,567,760 km (0.07 R)
• M8: 4,642,620 km (0.073 R)
• M9: 5,187,157 km (0.092 R)
• M10: 5,858,402 km (0.08 R)
• M11: 6,404,734 km (0.104 R)
• M12: 7,424,094 km (0.065 R)
• M13: 8,117,629 km (0.116 R)
• M14: 10,148,570 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.3

Radius: 10.1

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.34 AU - 2.84 AU

Year: 2691 Days

Day: 12.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,794,992 km

• M1: 125,662 km (0.094 R)
• M2: 442,511 km (0.083 R)
• M3: 849,866 km (0.088 R)
• M4: 1,333,815 km (0.119 R)
• M5: 2,297,674 km (0.111 R)
• M6: 2,691,266 km (0.11 R)
• M7: 3,251,061 km (0.072 R)
• M8: 4,581,285 km (0.037 R)
• M9: 5,209,297 km (0.105 R)
• M10: 5,814,570 km (0.102 R)
• M11: 6,243,766 km (0.071 R)
• M12: 6,868,487 km (0.027 R)
• M13: 7,596,729 km (0.118 R)
• M14: 8,209,183 km (0.088 R)
• M15: 9,242,904 km (0.086 R)
• M16: 10,556,075 km (0.072 R)
• M17: 12,032,306 km (0.114 R)
• M18: 12,820,089 km (0.119 R)
• M19: 13,364,027 km (0.026 R)
• M20: 14,065,641 km (0.076 R)
• M21: 17,065,228 km (0.118 R)
• M22: 17,891,008 km (0.12 R)
• M23: 18,800,862 km (0.108 R)
• M24: 19,681,545 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.4

Radius: 8

Gravity: 11.07 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.82 AU - 8.92 AU

Year: 14255 Days

Day: 23.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 44,794,992 km

• M1: 117,135 km (0.109 R)
• M2: 384,915 km (0.063 R)
• M3: 936,333 km (0.111 R)
• M4: 1,266,196 km (0.068 R)
• M5: 1,804,599 km (0.088 R)
• M6: 2,262,518 km (0.086 R)
• M7: 2,616,616 km (0.073 R)
• M8: 3,570,303 km (0.031 R)
• M9: 3,964,044 km (0.105 R)
• M10: 4,417,625 km (0.107 R)
• M11: 4,771,873 km (0.1 R)
• M12: 6,144,134 km (0.116 R)
• M13: 7,399,709 km (0.084 R)
• M14: 8,278,597 km (0.114 R)
• M15: 10,242,368 km (0.065 R)
• M16: 10,806,801 km (0.114 R)
• M17: 11,511,257 km (0.064 R)
• M18: 11,874,780 km (0.109 R)
• M19: 12,308,614 km (0.05 R)
• M20: 14,567,541 km (0.094 R)
• M21: 17,562,640 km (0.097 R)
• M22: 19,629,634 km (0.091 R)
• M23: 20,855,439 km (0.063 R)
• M24: 23,169,868 km (0.105 R)
• M25: 25,140,670 km (0.035 R)
• M26: 25,445,700 km (0.105 R)
• M27: 27,434,754 km (0.115 R)
• M28: 34,519,110 km (0.097 R)
• M29: 38,010,276 km (0.119 R)
• M30: 41,164,098 km (0.085 R)
• M31: 42,444,357 km (0.115 R)
• M32: 45,534,301 km (0.082 R)
• M33: 47,057,207 km (0.12 R)
• M34: 49,245,824 km (0.08 R)
• M35: 54,162,358 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 237.1

Radius: 7.4

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.23 AU - 10.31 AU

Year: 15356 Days

Day: 16.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,794,992 km

• M1: 92,003 km (0.093 R)
• M2: 408,402 km (0.086 R)
• M3: 824,583 km (0.117 R)
• M4: 1,323,343 km (0.072 R)
• M5: 1,584,541 km (0.065 R)
• M6: 2,846,997 km (0.108 R)
• M7: 4,943,761 km (0.048 R)
• M8: 8,590,508 km (0.098 R)
• M9: 8,904,664 km (0.111 R)
• M10: 13,238,215 km (0.084 R)
• M11: 13,476,973 km (0.049 R)
• M12: 15,889,687 km (0.067 R)
• M13: 25,560,292 km (0.102 R)
• M14: 26,304,841 km (0.118 R)
• M15: 28,824,219 km (0.061 R)
• M16: 32,463,785 km (0.067 R)
• M17: 32,898,217 km (0.049 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 11,224 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit