🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.46 AU - 0.56 AU

Year: 232 Days

Day: 47.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251

Radius: 11.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.65 AU - 0.79 AU

Year: 388 Days

Day: 8.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,885,711 km

• M1: 140,622 km (0.061 R)
• M2: 578,645 km (0.069 R)
• M3: 1,001,558 km (0.11 R)
• M4: 1,354,459 km (0.114 R)
• M5: 1,865,635 km (0.078 R)
• M6: 2,224,520 km (0.113 R)
• M7: 2,621,403 km (0.109 R)
• M8: 3,191,970 km (0.108 R)
• M9: 3,777,047 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.5

Radius: 14.1

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.82 AU - 1.34 AU

Year: 714 Days

Day: 6.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 87,885,711 km

• M1: 175,329 km (0.109 R)
• M2: 884,871 km (0.059 R)
• M3: 1,984,117 km (0.082 R)
• M4: 3,477,851 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.4

Radius: 12.5

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.94 AU - 1.26 AU

Year: 734 Days

Day: 7.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,885,711 km

• M1: 155,432 km (0.073 R)
• M2: 970,591 km (0.106 R)
• M3: 1,736,831 km (0.047 R)
• M4: 2,175,153 km (0.104 R)
• M5: 3,387,345 km (0.038 R)
• M6: 4,780,699 km (0.036 R)
• M7: 5,408,262 km (0.071 R)
• M8: 5,830,278 km (0.036 R)
• M9: 6,828,395 km (0.096 R)
• M10: 7,438,006 km (0.097 R)
• M11: 8,182,555 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.6

Radius: 8.5

Gravity: 13.39 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.11 AU - 1.53 AU

Year: 964 Days

Day: 14.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 87,885,711 km

• M1: 105,766 km (0.091 R)
• M2: 530,624 km (0.093 R)
• M3: 923,916 km (0.076 R)
• M4: 1,306,438 km (0.092 R)
• M5: 1,671,906 km (0.094 R)
• M6: 1,979,928 km (0.075 R)
• M7: 2,246,661 km (0.114 R)
• M8: 2,598,964 km (0.106 R)
• M9: 3,028,908 km (0.061 R)
• M10: 3,981,547 km (0.089 R)
• M11: 5,381,484 km (0.093 R)
• M12: 5,756,227 km (0.077 R)
• M13: 6,419,544 km (0.106 R)
• M14: 7,457,753 km (0.101 R)
• M15: 7,740,493 km (0.094 R)
• M16: 8,057,192 km (0.097 R)
• M17: 10,910,622 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.3

Radius: 10.7

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.18 AU - 3.26 AU

Year: 2852 Days

Day: 6.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,885,711 km

• M1: 133,142 km (0.09 R)
• M2: 818,899 km (0.096 R)
• M3: 1,477,728 km (0.113 R)
• M4: 1,889,421 km (0.107 R)
• M5: 3,426,838 km (0.11 R)
• M6: 3,760,890 km (0.103 R)
• M7: 4,920,124 km (0.071 R)
• M8: 5,544,845 km (0.12 R)
• M9: 7,099,765 km (0.099 R)
• M10: 7,491,712 km (0.043 R)
• M11: 8,961,660 km (0.025 R)
• M12: 10,810,840 km (0.094 R)
• M13: 11,951,075 km (0.106 R)
• M14: 15,852,737 km (0.115 R)
• M15: 17,978,971 km (0.091 R)
• M16: 18,313,622 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.1

Radius: 10.3

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 4.95 AU - 6.05 AU

Year: 8201 Days

Day: 7.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,885,711 km

• M1: 130,300 km (0.07 R)
• M2: 693,835 km (0.088 R)
• M3: 1,910,066 km (0.083 R)
• M4: 2,246,960 km (0.119 R)
• M5: 2,623,947 km (0.087 R)
• M6: 3,789,613 km (0.116 R)
• M7: 4,327,418 km (0.111 R)
• M8: 6,835,426 km (0.077 R)
• M9: 7,419,755 km (0.074 R)
• M10: 8,263,188 km (0.06 R)
• M11: 10,448,813 km (0.043 R)
• M12: 11,892,432 km (0.032 R)
• M13: 15,286,060 km (0.08 R)
• M14: 15,809,952 km (0.04 R)
• M15: 16,406,249 km (0.063 R)
• M16: 17,079,290 km (0.108 R)
• M17: 20,303,273 km (0.087 R)
• M18: 23,295,829 km (0.112 R)
• M19: 25,745,046 km (0.058 R)
• M20: 26,654,002 km (0.046 R)
• M21: 28,273,998 km (0.116 R)
• M22: 29,598,687 km (0.08 R)
• M23: 30,779,762 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 799.7

Radius: 3.7

Gravity: 58.41 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.76 AU - 9 AU

Year: 15424 Days

Day: 22.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,885,711 km

• M1: 46,675 km (0.069 R)
• M2: 247,136 km (0.066 R)
• M3: 875,896 km (0.101 R)
• M4: 1,313,320 km (0.029 R)
• M5: 1,477,129 km (0.114 R)
• M6: 2,336,120 km (0.118 R)
• M7: 2,622,899 km (0.087 R)
• M8: 2,763,073 km (0.042 R)
• M9: 3,032,947 km (0.114 R)
• M10: 3,540,234 km (0.101 R)
• M11: 5,939,335 km (0.07 R)
• M12: 6,859,511 km (0.12 R)
• M13: 8,977,518 km (0.107 R)
• M14: 10,414,405 km (0.041 R)
• M15: 13,115,245 km (0.114 R)
• M16: 14,444,572 km (0.079 R)
• M17: 14,735,390 km (0.111 R)
• M18: 16,484,189 km (0.115 R)
• M19: 17,367,565 km (0.095 R)
• M20: 19,315,628 km (0.108 R)
• M21: 21,687,503 km (0.095 R)
• M22: 22,746,955 km (0.041 R)
• M23: 36,227,518 km (0.115 R)
• M24: 41,104,409 km (0.081 R)
• M25: 45,773,956 km (0.114 R)
• M26: 52,647,081 km (0.117 R)
• M27: 56,327,787 km (0.025 R)
• M28: 57,591,889 km (0.045 R)
• M29: 62,069,204 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964.2

Radius: 5.9

Gravity: 27.7 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 8.07 AU - 12.47 AU

Year: 20926 Days

Day: 15.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 87,885,711 km

• M1: 73,453 km (0.107 R)
• M2: 261,946 km (0.081 R)
• M3: 453,730 km (0.113 R)
• M4: 818,899 km (0.114 R)
• M5: 1,021,155 km (0.068 R)
• M6: 2,282,116 km (0.084 R)
• M7: 3,200,497 km (0.099 R)
• M8: 3,464,238 km (0.082 R)
• M9: 3,742,340 km (0.114 R)
• M10: 4,853,853 km (0.077 R)
• M11: 6,169,865 km (0.104 R)
• M12: 6,486,713 km (0.061 R)
• M13: 10,659,447 km (0.077 R)
• M14: 11,859,371 km (0.109 R)
• M15: 12,420,513 km (0.11 R)
• M16: 14,210,152 km (0.112 R)
• M17: 14,843,101 km (0.049 R)
• M18: 16,767,378 km (0.099 R)
• M19: 17,563,538 km (0.049 R)
• M20: 18,946,122 km (0.044 R)
• M21: 19,518,932 km (0.076 R)
• M22: 22,135,249 km (0.105 R)
• M23: 23,746,418 km (0.095 R)
• M24: 33,398,473 km (0.066 R)
• M25: 35,801,463 km (0.096 R)
• M26: 37,715,119 km (0.119 R)
• M27: 45,202,044 km (0.119 R)
• M28: 51,196,281 km (0.05 R)
• M29: 51,749,195 km (0.104 R)
• M30: 52,492,696 km (0.099 R)
• M31: 57,500,186 km (0.088 R)
• M32: 63,662,720 km (0.106 R)
• M33: 64,302,251 km (0.084 R)
• M34: 77,764,115 km (0.109 R)
• M35: 87,622,465 km (0.108 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: 406 - 17,979 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit