🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.5

Radius: 13.1

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.81 AU - 0.89 AU

Year: 498 Days

Day: 12.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,738,644 km

• M1: 163,062 km (0.12 R)
• M2: 578,345 km (0.084 R)
• M3: 1,110,166 km (0.06 R)
• M4: 2,103,346 km (0.098 R)
• M5: 2,671,968 km (0.113 R)
• M6: 3,248,069 km (0.041 R)
• M7: 3,827,462 km (0.076 R)
• M8: 4,910,700 km (0.101 R)
• M9: 5,608,873 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.5

Radius: 8.7

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.7 AU - 1.1 AU

Year: 543 Days

Day: 12.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,738,644 km

• M1: 108,309 km (0.115 R)
• M2: 465,698 km (0.061 R)
• M3: 738,116 km (0.095 R)
• M4: 1,285,046 km (0.116 R)
• M5: 1,741,469 km (0.085 R)
• M6: 2,017,477 km (0.056 R)
• M7: 2,293,036 km (0.088 R)
• M8: 2,748,562 km (0.089 R)
• M9: 3,028,310 km (0.119 R)
• M10: 3,999,200 km (0.118 R)
• M11: 5,129,861 km (0.118 R)
• M12: 6,280,418 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.9

Radius: 8.8

Gravity: 12.6 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.79 AU - 1.21 AU

Year: 636 Days

Day: 12.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,738,644 km

• M1: 109,506 km (0.097 R)
• M2: 460,761 km (0.107 R)
• M3: 861,983 km (0.093 R)
• M4: 1,169,706 km (0.086 R)
• M5: 1,505,403 km (0.108 R)
• M6: 1,781,711 km (0.068 R)
• M7: 2,504,119 km (0.072 R)
• M8: 3,892,237 km (0.095 R)
• M9: 4,323,528 km (0.094 R)
• M10: 5,065,533 km (0.106 R)
• M11: 5,676,042 km (0.108 R)
• M12: 6,231,649 km (0.091 R)
• M13: 6,693,158 km (0.104 R)
• M14: 8,093,095 km (0.032 R)
• M15: 8,440,162 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.3

Radius: 10.1

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.93 AU - 1.35 AU

Year: 774 Days

Day: 7.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,738,644 km

• M1: 125,662 km (0.114 R)
• M2: 722,558 km (0.086 R)
• M3: 2,588,193 km (0.045 R)
• M4: 3,073,339 km (0.099 R)
• M5: 4,734,623 km (0.04 R)
• M6: 5,665,571 km (0.074 R)
• M7: 6,184,526 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.3

Radius: 9

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.37 AU - 2.13 AU

Year: 1472 Days

Day: 8 Hours

Environment

Temp: -186 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,738,644 km

• M1: 112,946 km (0.106 R)
• M2: 475,572 km (0.112 R)
• M3: 764,445 km (0.11 R)
• M4: 1,204,562 km (0.066 R)
• M5: 1,552,377 km (0.079 R)
• M6: 1,847,085 km (0.074 R)
• M7: 2,302,760 km (0.043 R)
• M8: 3,189,875 km (0.073 R)
• M9: 3,767,473 km (0.09 R)
• M10: 4,359,731 km (0.098 R)
• M11: 5,311,772 km (0.084 R)
• M12: 6,281,764 km (0.047 R)
• M13: 7,938,561 km (0.074 R)
• M14: 8,457,067 km (0.087 R)
• M15: 10,991,554 km (0.099 R)
• M16: 11,327,700 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.4

Radius: 9.3

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.03 AU - 2.71 AU

Year: 2320 Days

Day: 11 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,738,644 km

• M1: 127,906 km (0.102 R)
• M2: 449,990 km (0.059 R)
• M3: 1,746,854 km (0.12 R)
• M4: 3,137,516 km (0.027 R)
• M5: 3,767,323 km (0.07 R)
• M6: 4,125,909 km (0.117 R)
• M7: 4,896,937 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.1

Radius: 6.2

Gravity: 13.76 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.56 AU - 7.04 AU

Year: 10054 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 37,738,644 km

• M1: 77,193 km (0.036 R)
• M2: 334,052 km (0.086 R)
• M3: 533,616 km (0.09 R)
• M4: 842,685 km (0.084 R)
• M5: 1,118,693 km (0.082 R)
• M6: 1,327,232 km (0.097 R)
• M7: 1,982,471 km (0.086 R)
• M8: 2,513,992 km (0.111 R)
• M9: 3,249,116 km (0.086 R)
• M10: 3,933,676 km (0.08 R)
• M11: 4,337,889 km (0.096 R)
• M12: 5,041,747 km (0.105 R)
• M13: 6,599,660 km (0.104 R)
• M14: 7,447,730 km (0.108 R)
• M15: 7,773,554 km (0.09 R)
• M16: 9,594,310 km (0.072 R)
• M17: 12,917,926 km (0.084 R)
• M18: 13,627,917 km (0.067 R)
• M19: 13,992,487 km (0.032 R)
• M20: 14,426,022 km (0.074 R)
• M21: 14,804,654 km (0.085 R)
• M22: 15,319,869 km (0.107 R)
• M23: 17,077,046 km (0.068 R)
• M24: 18,814,326 km (0.107 R)
• M25: 21,883,476 km (0.115 R)
• M26: 24,105,154 km (0.088 R)
• M27: 24,459,850 km (0.115 R)
• M28: 30,103,280 km (0.09 R)
• M29: 32,412,024 km (0.093 R)
• M30: 34,386,716 km (0.107 R)
• M31: 39,548,591 km (0.096 R)
• M32: 40,664,441 km (0.096 R)
• M33: 42,570,767 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.8

Radius: 6

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 7.09 AU - 7.79 AU

Year: 12903 Days

Day: 24.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 37,738,644 km

• M1: 75,697 km (0.059 R)
• M2: 438,621 km (0.094 R)
• M3: 892,650 km (0.059 R)
• M4: 1,759,720 km (0.079 R)
• M5: 2,157,650 km (0.103 R)
• M6: 2,413,462 km (0.086 R)
• M7: 3,349,048 km (0.079 R)
• M8: 3,622,363 km (0.057 R)
• M9: 3,910,638 km (0.051 R)
• M10: 4,136,680 km (0.088 R)
• M11: 5,555,915 km (0.107 R)
• M12: 6,104,790 km (0.089 R)
• M13: 6,618,359 km (0.07 R)
• M14: 7,928,687 km (0.107 R)
• M15: 9,447,554 km (0.103 R)
• M16: 10,513,888 km (0.097 R)
• M17: 13,841,842 km (0.073 R)
• M18: 14,368,277 km (0.068 R)
• M19: 14,666,426 km (0.036 R)
• M20: 17,606,622 km (0.105 R)
• M21: 18,503,761 km (0.089 R)
• M22: 19,942,892 km (0.103 R)
• M23: 20,765,531 km (0.111 R)
• M24: 21,223,600 km (0.048 R)
• M25: 23,947,627 km (0.054 R)
• M26: 25,220,107 km (0.04 R)
• M27: 25,654,240 km (0.116 R)
• M28: 26,716,235 km (0.111 R)
• M29: 33,710,683 km (0.065 R)
• M30: 36,730,765 km (0.102 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 16,868 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit