🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.5

Radius: 13.2

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.85 AU - 1.15 AU

Year: 678 Days

Day: 14.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,613,352 km

• M1: 164,408 km (0.088 R)
• M2: 604,076 km (0.051 R)
• M3: 1,051,673 km (0.118 R)
• M4: 1,475,783 km (0.109 R)
• M5: 2,053,081 km (0.077 R)
• M6: 2,477,939 km (0.114 R)
• M7: 3,056,733 km (0.084 R)
• M8: 3,496,252 km (0.105 R)
• M9: 4,472,976 km (0.119 R)
• M10: 4,975,326 km (0.083 R)
• M11: 6,230,303 km (0.082 R)
• M12: 7,286,314 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.6

Radius: 14.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.05 AU - 1.11 AU

Year: 761 Days

Day: 8.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,613,352 km

• M1: 180,565 km (0.078 R)
• M2: 826,977 km (0.036 R)
• M3: 1,297,612 km (0.09 R)
• M4: 2,035,429 km (0.047 R)
• M5: 2,737,491 km (0.102 R)
• M6: 3,583,916 km (0.05 R)
• M7: 4,282,089 km (0.097 R)
• M8: 4,881,079 km (0.118 R)
• M9: 7,109,040 km (0.043 R)
• M10: 7,834,740 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.5

Radius: 14.9

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.17 AU - 1.41 AU

Year: 994 Days

Day: 13.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,613,352 km

• M1: 185,501 km (0.12 R)
• M2: 720,613 km (0.115 R)
• M3: 1,318,256 km (0.087 R)
• M4: 2,182,035 km (0.095 R)
• M5: 3,514,503 km (0.093 R)
• M6: 4,021,490 km (0.105 R)
• M7: 4,619,133 km (0.097 R)
• M8: 5,154,694 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.6

Radius: 10.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.37 AU - 1.65 AU

Year: 1259 Days

Day: 10.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,613,352 km

• M1: 135,536 km (0.061 R)
• M2: 483,500 km (0.119 R)
• M3: 863,180 km (0.102 R)
• M4: 1,995,486 km (0.102 R)
• M5: 2,344,049 km (0.057 R)
• M6: 3,153,074 km (0.12 R)
• M7: 3,764,331 km (0.102 R)
• M8: 5,205,108 km (0.113 R)
• M9: 7,193,713 km (0.11 R)
• M10: 8,306,272 km (0.105 R)
• M11: 9,054,262 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.5

Radius: 10.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.83 AU - 2.11 AU

Year: 1875 Days

Day: 9 Hours

Environment

Temp: -207 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,613,352 km

• M1: 128,056 km (0.062 R)
• M2: 535,411 km (0.085 R)
• M3: 953,387 km (0.061 R)
• M4: 1,361,191 km (0.104 R)
• M5: 1,906,176 km (0.063 R)
• M6: 2,794,189 km (0.053 R)
• M7: 3,466,482 km (0.083 R)
• M8: 6,188,714 km (0.056 R)
• M9: 8,940,418 km (0.119 R)
• M10: 9,536,715 km (0.084 R)
• M11: 10,635,361 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.4

Radius: 12.1

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.07 AU - 2.67 AU

Year: 2475 Days

Day: 6.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,613,352 km

• M1: 150,495 km (0.072 R)
• M2: 545,583 km (0.114 R)
• M3: 1,057,657 km (0.102 R)
• M4: 1,497,923 km (0.071 R)
• M5: 2,097,512 km (0.086 R)
• M6: 3,068,103 km (0.069 R)
• M7: 3,929,936 km (0.095 R)
• M8: 4,499,754 km (0.114 R)
• M9: 5,079,446 km (0.096 R)
• M10: 6,004,410 km (0.064 R)
• M11: 7,094,529 km (0.074 R)
• M12: 7,972,519 km (0.114 R)
• M13: 9,423,619 km (0.053 R)
• M14: 10,338,559 km (0.116 R)
• M15: 10,817,721 km (0.063 R)
• M16: 12,633,839 km (0.099 R)
• M17: 13,483,705 km (0.099 R)
• M18: 14,645,033 km (0.108 R)
• M19: 16,660,416 km (0.038 R)
• M20: 17,166,206 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.8

Radius: 10.4

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.66 AU - 4.08 AU

Year: 4196 Days

Day: 7.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,613,352 km

• M1: 130,599 km (0.119 R)
• M2: 529,277 km (0.103 R)
• M3: 947,403 km (0.053 R)
• M4: 1,387,670 km (0.034 R)
• M5: 1,909,318 km (0.114 R)
• M6: 2,446,075 km (0.089 R)
• M7: 2,917,009 km (0.099 R)
• M8: 3,407,989 km (0.096 R)
• M9: 4,087,163 km (0.113 R)
• M10: 5,112,956 km (0.045 R)
• M11: 5,915,997 km (0.074 R)
• M12: 6,865,046 km (0.091 R)
• M13: 7,495,153 km (0.063 R)
• M14: 9,658,936 km (0.076 R)
• M15: 10,111,918 km (0.072 R)
• M16: 11,329,496 km (0.053 R)
• M17: 12,400,616 km (0.108 R)
• M18: 14,210,900 km (0.105 R)
• M19: 14,743,618 km (0.073 R)
• M20: 17,127,610 km (0.086 R)
• M21: 18,099,846 km (0.081 R)
• M22: 18,852,772 km (0.057 R)
• M23: 22,217,079 km (0.113 R)
• M24: 22,574,019 km (0.101 R)
• M25: 23,520,226 km (0.067 R)
• M26: 24,797,193 km (0.045 R)
• M27: 26,597,604 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.9

Radius: 11.2

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.97 AU - 5.49 AU

Year: 8112 Days

Day: 7.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,613,352 km

• M1: 139,425 km (0.051 R)
• M2: 719,715 km (0.057 R)
• M3: 1,096,552 km (0.102 R)
• M4: 1,586,934 km (0.11 R)
• M5: 2,749,758 km (0.089 R)
• M6: 3,286,516 km (0.079 R)
• M7: 3,933,826 km (0.114 R)
• M8: 4,975,924 km (0.105 R)
• M9: 5,456,732 km (0.058 R)
• M10: 7,897,870 km (0.096 R)
• M11: 9,357,945 km (0.042 R)
• M12: 11,159,552 km (0.096 R)
• M13: 12,075,091 km (0.074 R)
• M14: 13,613,855 km (0.055 R)
• M15: 16,025,821 km (0.03 R)
• M16: 18,173,897 km (0.09 R)
• M17: 19,750,060 km (0.036 R)
• M18: 22,965,218 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512.3

Radius: 3.8

Gravity: 35.48 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.44 AU - 8.26 AU

Year: 12160 Days

Day: 18.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 44,613,352 km

• M1: 47,273 km (0.105 R)
• M2: 177,423 km (0.076 R)
• M3: 312,660 km (0.119 R)
• M4: 461,509 km (0.104 R)
• M5: 634,145 km (0.112 R)
• M6: 757,863 km (0.071 R)
• M7: 1,424,770 km (0.12 R)
• M8: 1,551,180 km (0.106 R)
• M9: 2,596,570 km (0.077 R)
• M10: 3,099,219 km (0.108 R)
• M11: 4,352,400 km (0.067 R)
• M12: 5,188,653 km (0.108 R)
• M13: 5,731,693 km (0.084 R)
• M14: 6,349,382 km (0.051 R)
• M15: 8,421,762 km (0.114 R)
• M16: 9,266,391 km (0.032 R)
• M17: 9,910,560 km (0.065 R)
• M18: 12,488,729 km (0.063 R)
• M19: 14,941,087 km (0.11 R)
• M20: 15,618,018 km (0.103 R)
• M21: 16,315,144 km (0.087 R)
• M22: 17,547,381 km (0.106 R)
• M23: 18,607,731 km (0.079 R)
• M24: 18,840,356 km (0.098 R)
• M25: 20,855,140 km (0.053 R)
• M26: 21,614,200 km (0.065 R)
• M27: 21,785,340 km (0.037 R)
• M28: 23,098,061 km (0.101 R)
• M29: 23,547,154 km (0.085 R)
• M30: 25,879,983 km (0.093 R)
• M31: 27,651,820 km (0.1 R)
• M32: 28,980,698 km (0.083 R)
• M33: 29,188,938 km (0.086 R)
• M34: 34,140,179 km (0.051 R)
• M35: 35,075,166 km (0.092 R)
• M36: 42,504,645 km (0.052 R)
• M37: 43,722,670 km (0.075 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 319

Radius: 6

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.68 AU - 7.76 AU

Year: 13158 Days

Day: 22 Hours

Environment

Temp: -235 °C

Axial Tilt: 76.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,613,352 km

• M1: 75,098 km (0.093 R)
• M2: 787,334 km (0.098 R)
• M3: 1,809,835 km (0.111 R)
• M4: 2,716,548 km (0.081 R)
• M5: 8,150,391 km (0.079 R)
• M6: 8,453,776 km (0.088 R)
• M7: 9,268,486 km (0.093 R)
• M8: 12,249,672 km (0.12 R)
• M9: 13,054,658 km (0.067 R)
• M10: 18,343,242 km (0.055 R)
• M11: 19,626,044 km (0.093 R)
• M12: 22,622,938 km (0.103 R)
• M13: 28,010,257 km (0.118 R)
• M14: 28,502,733 km (0.081 R)
• M15: 28,701,249 km (0.092 R)
• M16: 29,101,124 km (0.088 R)
• M17: 37,304,473 km (0.065 R)
• M18: 40,849,793 km (0.088 R)
• M19: 44,479,935 km (0.116 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 12,405 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit