🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.5

Radius: 13.8

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.59 AU - 0.81 AU

Year: 404 Days

Day: 5.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 82,083,364 km

• M1: 171,589 km (0.099 R)
• M2: 759,359 km (0.044 R)
• M3: 1,294,770 km (0.059 R)
• M4: 2,593,728 km (0.075 R)
• M5: 3,215,008 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.4

Radius: 9.1

Gravity: 11.65 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.91 AU - 1.13 AU

Year: 711 Days

Day: 8.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,083,364 km

• M1: 113,246 km (0.111 R)
• M2: 414,386 km (0.114 R)
• M3: 807,380 km (0.046 R)
• M4: 1,114,055 km (0.08 R)
• M5: 1,755,830 km (0.119 R)
• M6: 2,080,458 km (0.048 R)
• M7: 2,779,379 km (0.06 R)
• M8: 3,066,158 km (0.092 R)
• M9: 3,555,193 km (0.103 R)
• M10: 4,142,814 km (0.103 R)
• M11: 4,603,575 km (0.067 R)
• M12: 4,899,629 km (0.106 R)
• M13: 5,245,799 km (0.102 R)
• M14: 5,946,515 km (0.114 R)
• M15: 7,533,749 km (0.115 R)
• M16: 8,120,621 km (0.06 R)
• M17: 8,711,383 km (0.117 R)
• M18: 9,138,934 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481

Radius: 8.8

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.12 AU - 1.12 AU

Year: 818 Days

Day: 5.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,083,364 km

• M1: 109,506 km (0.117 R)
• M2: 404,513 km (0.079 R)
• M3: 761,304 km (0.117 R)
• M4: 1,070,074 km (0.103 R)
• M5: 1,356,553 km (0.069 R)
• M6: 2,061,608 km (0.087 R)
• M7: 2,884,546 km (0.11 R)
• M8: 3,305,814 km (0.085 R)
• M9: 3,867,853 km (0.108 R)
• M10: 4,179,615 km (0.072 R)
• M11: 4,703,656 km (0.117 R)
• M12: 5,562,049 km (0.088 R)
• M13: 6,077,563 km (0.101 R)
• M14: 6,750,754 km (0.031 R)
• M15: 7,293,046 km (0.1 R)
• M16: 7,958,158 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.6

Radius: 13

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1 AU - 1.3 AU

Year: 851 Days

Day: 6.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,083,364 km

• M1: 161,715 km (0.04 R)
• M2: 704,157 km (0.109 R)
• M3: 1,152,203 km (0.074 R)
• M4: 1,606,831 km (0.099 R)
• M5: 2,031,689 km (0.073 R)
• M6: 2,721,484 km (0.118 R)
• M7: 3,209,922 km (0.087 R)
• M8: 3,771,961 km (0.111 R)
• M9: 4,711,735 km (0.072 R)
• M10: 6,200,682 km (0.096 R)
• M11: 6,867,739 km (0.119 R)
• M12: 7,582,218 km (0.099 R)
• M13: 9,329,073 km (0.098 R)
• M14: 9,908,017 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.3

Radius: 11.5

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.61 AU - 1.85 AU

Year: 1571 Days

Day: 5.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,083,364 km

• M1: 143,165 km (0.089 R)
• M2: 614,997 km (0.105 R)
• M3: 1,104,331 km (0.092 R)
• M4: 1,821,653 km (0.094 R)
• M5: 2,251,747 km (0.106 R)
• M6: 3,145,445 km (0.071 R)
• M7: 3,690,131 km (0.065 R)
• M8: 4,314,851 km (0.085 R)
• M9: 4,795,061 km (0.115 R)
• M10: 5,372,508 km (0.089 R)
• M11: 5,797,516 km (0.053 R)
• M12: 6,313,928 km (0.053 R)
• M13: 6,959,293 km (0.114 R)
• M14: 8,722,603 km (0.091 R)
• M15: 9,402,077 km (0.083 R)
• M16: 10,634,314 km (0.099 R)
• M17: 11,375,422 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.7

Radius: 4.1

Gravity: 52.51 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.14 AU - 7.48 AU

Year: 10941 Days

Day: 17.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 82,083,364 km

• M1: 51,910 km (0.057 R)
• M2: 253,120 km (0.081 R)
• M3: 493,673 km (0.058 R)
• M4: 672,891 km (0.115 R)
• M5: 905,217 km (0.072 R)
• M6: 1,080,695 km (0.105 R)
• M7: 1,239,867 km (0.108 R)
• M8: 1,530,087 km (0.096 R)
• M9: 2,831,140 km (0.101 R)
• M10: 3,809,061 km (0.096 R)
• M11: 4,328,614 km (0.089 R)
• M12: 4,700,365 km (0.114 R)
• M13: 5,059,550 km (0.11 R)
• M14: 5,263,152 km (0.065 R)
• M15: 6,640,799 km (0.046 R)
• M16: 6,926,082 km (0.083 R)
• M17: 7,564,865 km (0.046 R)
• M18: 11,883,606 km (0.069 R)
• M19: 15,037,129 km (0.088 R)
• M20: 15,246,566 km (0.065 R)
• M21: 17,219,912 km (0.101 R)
• M22: 19,522,223 km (0.079 R)
• M23: 20,532,009 km (0.081 R)
• M24: 22,655,251 km (0.078 R)
• M25: 22,838,509 km (0.077 R)
• M26: 23,208,015 km (0.075 R)
• M27: 26,410,158 km (0.119 R)
• M28: 28,594,137 km (0.055 R)
• M29: 31,461,031 km (0.066 R)
• M30: 37,887,007 km (0.1 R)
• M31: 38,145,213 km (0.056 R)
• M32: 48,700,091 km (0.1 R)
• M33: 51,336,155 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.3

Radius: 7

Gravity: 19.94 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.89 AU - 11.19 AU

Year: 18761 Days

Day: 21.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,083,364 km

• M1: 87,814 km (0.098 R)
• M2: 386,561 km (0.105 R)
• M3: 614,698 km (0.12 R)
• M4: 1,368,222 km (0.054 R)
• M5: 1,737,130 km (0.071 R)
• M6: 4,206,842 km (0.073 R)
• M7: 5,334,810 km (0.066 R)
• M8: 7,071,791 km (0.037 R)
• M9: 7,709,377 km (0.08 R)
• M10: 8,016,351 km (0.074 R)
• M11: 11,817,035 km (0.091 R)
• M12: 12,784,484 km (0.053 R)
• M13: 14,641,742 km (0.077 R)
• M14: 15,112,975 km (0.028 R)
• M15: 16,251,565 km (0.09 R)
• M16: 17,886,969 km (0.041 R)
• M17: 18,607,282 km (0.079 R)
• M18: 24,309,504 km (0.087 R)
• M19: 25,081,280 km (0.039 R)
• M20: 29,434,428 km (0.114 R)
• M21: 31,076,115 km (0.115 R)
• M22: 31,985,072 km (0.077 R)
• M23: 34,541,101 km (0.09 R)
• M24: 35,939,542 km (0.08 R)
• M25: 39,600,352 km (0.103 R)
• M26: 41,286,918 km (0.085 R)
• M27: 51,157,236 km (0.077 R)
• M28: 58,282,433 km (0.055 R)
• M29: 62,695,570 km (0.117 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: 394 - 12,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit