🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.48 AU - 0.6 AU

Year: 260 Days

Day: 42.1 Hours

Environment

Temp: -116 °C

Axial Tilt: 8.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 31,986,194 km

• M1: 22,888 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.8

Radius: 9.5

Gravity: 10.71 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.69 AU - 0.81 AU

Year: 426 Days

Day: 11.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,986,194 km

• M1: 118,182 km (0.072 R)
• M2: 423,661 km (0.075 R)
• M3: 778,358 km (0.113 R)
• M4: 1,110,016 km (0.107 R)
• M5: 1,447,808 km (0.117 R)
• M6: 1,759,570 km (0.105 R)
• M7: 2,134,462 km (0.114 R)
• M8: 3,035,790 km (0.088 R)
• M9: 3,415,918 km (0.08 R)
• M10: 4,200,708 km (0.105 R)
• M11: 4,689,594 km (0.048 R)
• M12: 5,924,225 km (0.105 R)
• M13: 6,443,928 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.2

Radius: 10.8

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1 AU - 1 AU

Year: 656 Days

Day: 8.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,986,194 km

• M1: 134,339 km (0.117 R)
• M2: 474,225 km (0.097 R)
• M3: 830,418 km (0.111 R)
• M4: 1,327,681 km (0.118 R)
• M5: 1,670,709 km (0.069 R)
• M6: 2,405,683 km (0.027 R)
• M7: 3,331,096 km (0.105 R)
• M8: 4,109,753 km (0.074 R)
• M9: 4,687,948 km (0.082 R)
• M10: 5,721,670 km (0.093 R)
• M11: 6,383,042 km (0.109 R)
• M12: 6,943,735 km (0.053 R)
• M13: 7,719,400 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.8

Radius: 12.5

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.56 AU - 1.6 AU

Year: 1303 Days

Day: 7.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,986,194 km

• M1: 155,582 km (0.073 R)
• M2: 1,080,396 km (0.107 R)
• M3: 1,526,497 km (0.072 R)
• M4: 2,305,902 km (0.069 R)
• M5: 2,846,399 km (0.061 R)
• M6: 3,562,673 km (0.092 R)
• M7: 3,964,044 km (0.085 R)
• M8: 4,522,344 km (0.105 R)
• M9: 5,192,542 km (0.092 R)
• M10: 6,589,188 km (0.068 R)
• M11: 7,685,591 km (0.087 R)
• M12: 8,444,351 km (0.085 R)
• M13: 9,133,997 km (0.111 R)
• M14: 10,143,184 km (0.066 R)
• M15: 10,625,787 km (0.071 R)
• M16: 11,123,798 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.2

Radius: 14.2

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.63 AU - 1.99 AU

Year: 1597 Days

Day: 11.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,986,194 km

• M1: 176,525 km (0.114 R)
• M2: 620,831 km (0.083 R)
• M3: 1,535,772 km (0.07 R)
• M4: 2,065,199 km (0.038 R)
• M5: 2,637,859 km (0.117 R)
• M6: 3,136,170 km (0.118 R)
• M7: 3,615,631 km (0.056 R)
• M8: 4,162,262 km (0.066 R)
• M9: 5,106,673 km (0.114 R)
• M10: 7,394,174 km (0.082 R)
• M11: 8,660,221 km (0.092 R)
• M12: 10,165,175 km (0.09 R)
• M13: 10,980,185 km (0.101 R)
• M14: 12,934,531 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.9

Radius: 10.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.75 AU - 2.07 AU

Year: 1732 Days

Day: 13.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,986,194 km

• M1: 135,536 km (0.093 R)
• M2: 1,054,815 km (0.109 R)
• M3: 1,599,351 km (0.101 R)
• M4: 4,809,871 km (0.076 R)
• M5: 5,198,227 km (0.094 R)
• M6: 5,567,584 km (0.118 R)
• M7: 8,166,249 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.3

Radius: 10.4

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.22 AU - 5.2 AU

Year: 5667 Days

Day: 6.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 31,986,194 km

• M1: 138,228 km (0.079 R)
• M2: 486,492 km (0.05 R)
• M3: 817,852 km (0.096 R)
• M4: 1,599,500 km (0.101 R)
• M5: 2,412,565 km (0.12 R)
• M6: 2,968,022 km (0.034 R)
• M7: 4,097,934 km (0.096 R)
• M8: 4,683,760 km (0.098 R)
• M9: 5,902,384 km (0.049 R)
• M10: 7,286,613 km (0.097 R)
• M11: 8,372,993 km (0.112 R)
• M12: 9,114,849 km (0.118 R)
• M13: 10,506,857 km (0.09 R)
• M14: 12,230,524 km (0.089 R)
• M15: 14,027,643 km (0.11 R)
• M16: 15,073,631 km (0.103 R)
• M17: 15,586,901 km (0.113 R)
• M18: 16,951,832 km (0.111 R)
• M19: 17,569,522 km (0.077 R)
• M20: 17,947,257 km (0.086 R)
• M21: 19,579,968 km (0.091 R)
• M22: 21,096,741 km (0.103 R)
• M23: 22,839,107 km (0.079 R)
• M24: 26,690,953 km (0.12 R)
• M25: 27,274,385 km (0.069 R)
• M26: 28,900,962 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.3

Radius: 4.8

Gravity: 33.95 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.46 AU - 6.64 AU

Year: 10997 Days

Day: 19.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,986,194 km

• M1: 62,382 km (0.085 R)
• M2: 236,065 km (0.099 R)
• M3: 560,543 km (0.04 R)
• M4: 954,285 km (0.032 R)
• M5: 1,281,007 km (0.082 R)
• M6: 1,924,128 km (0.117 R)
• M7: 3,126,296 km (0.074 R)
• M8: 3,345,756 km (0.118 R)
• M9: 4,181,859 km (0.089 R)
• M10: 4,388,304 km (0.11 R)
• M11: 4,886,166 km (0.097 R)
• M12: 5,666,468 km (0.116 R)
• M13: 6,605,494 km (0.097 R)
• M14: 7,300,376 km (0.034 R)
• M15: 9,273,871 km (0.092 R)
• M16: 14,906,381 km (0.087 R)
• M17: 17,048,024 km (0.113 R)
• M18: 18,505,556 km (0.105 R)
• M19: 22,018,413 km (0.082 R)
• M20: 26,952,001 km (0.07 R)
• M21: 28,817,935 km (0.08 R)
• M22: 33,152,683 km (0.042 R)
• M23: 44,914,068 km (0.119 R)
• M24: 46,500,404 km (0.105 R)
• M25: 52,583,801 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.3

Radius: 4.9

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.6 AU - 7.66 AU

Year: 11199 Days

Day: 16.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,986,194 km

• M1: 61,036 km (0.077 R)
• M2: 238,010 km (0.11 R)
• M3: 419,772 km (0.114 R)
• M4: 689,347 km (0.113 R)
• M5: 1,039,855 km (0.119 R)
• M6: 1,969,306 km (0.115 R)
• M7: 3,009,161 km (0.117 R)
• M8: 5,314,764 km (0.052 R)
• M9: 8,950,441 km (0.119 R)
• M10: 10,143,633 km (0.116 R)
• M11: 12,429,489 km (0.073 R)
• M12: 16,041,679 km (0.053 R)
• M13: 17,343,480 km (0.069 R)
• M14: 27,432,809 km (0.115 R)
• M15: 27,867,391 km (0.062 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 174 - 14,909 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit