🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.55 AU - 0.75 AU

Year: 344 Days

Day: 34.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.3

Radius: 12.2

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.78 AU - 0.8 AU

Year: 461 Days

Day: 6.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 71,525,318 km

• M1: 151,991 km (0.103 R)
• M2: 614,249 km (0.097 R)
• M3: 1,112,709 km (0.111 R)
• M4: 1,569,581 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.6

Radius: 10

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.69 AU - 0.99 AU

Year: 505 Days

Day: 7 Hours

Environment

Temp: -158 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,525,318 km

• M1: 124,465 km (0.036 R)
• M2: 440,865 km (0.099 R)
• M3: 842,685 km (0.046 R)
• M4: 1,443,021 km (0.058 R)
• M5: 1,995,336 km (0.116 R)
• M6: 2,548,549 km (0.07 R)
• M7: 2,939,449 km (0.101 R)
• M8: 4,411,043 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.2

Radius: 10.2

Gravity: 9.13 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.16 AU - 1.3 AU

Year: 895 Days

Day: 9.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,525,318 km

• M1: 126,859 km (0.089 R)
• M2: 572,212 km (0.092 R)
• M3: 1,196,334 km (0.085 R)
• M4: 1,561,951 km (0.104 R)
• M5: 2,231,851 km (0.107 R)
• M6: 2,858,516 km (0.051 R)
• M7: 3,220,842 km (0.083 R)
• M8: 3,798,589 km (0.072 R)
• M9: 4,306,025 km (0.028 R)
• M10: 5,890,117 km (0.07 R)
• M11: 6,257,380 km (0.098 R)
• M12: 6,825,403 km (0.094 R)
• M13: 7,231,112 km (0.12 R)
• M14: 8,600,082 km (0.088 R)
• M15: 8,932,788 km (0.078 R)
• M16: 10,104,139 km (0.119 R)

Asteroid Belt

Center: 1.94 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.7

Radius: 12.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.53 AU - 2.75 AU

Year: 2814 Days

Day: 7.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,525,318 km

• M1: 165,306 km (0.062 R)
• M2: 588,817 km (0.058 R)
• M3: 1,317,808 km (0.09 R)
• M4: 1,755,082 km (0.083 R)
• M5: 2,414,360 km (0.094 R)
• M6: 2,838,320 km (0.117 R)
• M7: 3,472,765 km (0.104 R)
• M8: 4,717,569 km (0.09 R)
• M9: 5,803,201 km (0.06 R)
• M10: 6,615,068 km (0.035 R)
• M11: 7,272,551 km (0.049 R)
• M12: 7,853,439 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.1

Radius: 8.8

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.44 AU - 5.08 AU

Year: 6813 Days

Day: 6.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,525,318 km

• M1: 109,655 km (0.099 R)
• M2: 559,945 km (0.103 R)
• M3: 844,779 km (0.112 R)
• M4: 1,666,969 km (0.083 R)
• M5: 2,281,966 km (0.082 R)
• M6: 2,591,185 km (0.113 R)
• M7: 4,214,471 km (0.065 R)
• M8: 4,916,833 km (0.056 R)
• M9: 5,408,113 km (0.098 R)
• M10: 6,330,683 km (0.118 R)
• M11: 7,389,387 km (0.064 R)
• M12: 7,743,335 km (0.113 R)
• M13: 8,182,854 km (0.06 R)
• M14: 10,814,580 km (0.029 R)
• M15: 12,769,674 km (0.11 R)
• M16: 13,228,491 km (0.115 R)
• M17: 13,698,228 km (0.103 R)
• M18: 15,287,855 km (0.098 R)
• M19: 16,393,683 km (0.096 R)
• M20: 18,183,322 km (0.107 R)
• M21: 20,304,919 km (0.066 R)
• M22: 20,581,226 km (0.104 R)
• M23: 21,283,139 km (0.1 R)
• M24: 23,712,609 km (0.078 R)
• M25: 24,019,135 km (0.089 R)
• M26: 26,403,127 km (0.117 R)
• M27: 28,162,996 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.8

Radius: 5.3

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.35 AU - 6.45 AU

Year: 9401 Days

Day: 18.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,525,318 km

• M1: 65,973 km (0.087 R)
• M2: 267,032 km (0.106 R)
• M3: 458,667 km (0.075 R)
• M4: 719,416 km (0.092 R)
• M5: 1,337,405 km (0.116 R)
• M6: 1,863,989 km (0.101 R)
• M7: 2,215,694 km (0.04 R)
• M8: 3,501,637 km (0.116 R)
• M9: 4,016,104 km (0.104 R)
• M10: 4,534,461 km (0.092 R)
• M11: 5,394,200 km (0.071 R)
• M12: 7,030,053 km (0.056 R)
• M13: 7,274,795 km (0.079 R)
• M14: 7,461,942 km (0.063 R)
• M15: 7,684,543 km (0.12 R)
• M16: 9,006,241 km (0.063 R)
• M17: 13,397,836 km (0.11 R)
• M18: 14,795,977 km (0.117 R)
• M19: 15,147,383 km (0.055 R)
• M20: 16,555,548 km (0.09 R)
• M21: 18,450,055 km (0.078 R)
• M22: 19,750,060 km (0.067 R)
• M23: 20,484,287 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.9

Radius: 6.2

Gravity: 18.94 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.6 AU - 10.38 AU

Year: 17683 Days

Day: 20.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,525,318 km

• M1: 80,783 km (0.115 R)
• M2: 631,752 km (0.085 R)
• M3: 946,356 km (0.096 R)
• M4: 1,193,492 km (0.027 R)
• M5: 1,645,577 km (0.113 R)
• M6: 1,855,911 km (0.083 R)
• M7: 2,185,026 km (0.108 R)
• M8: 2,691,714 km (0.104 R)
• M9: 3,410,532 km (0.03 R)
• M10: 3,608,899 km (0.044 R)
• M11: 4,684,209 km (0.057 R)
• M12: 5,073,761 km (0.105 R)
• M13: 7,686,039 km (0.041 R)
• M14: 8,848,265 km (0.066 R)
• M15: 9,666,715 km (0.076 R)
• M16: 9,950,353 km (0.117 R)
• M17: 10,594,072 km (0.104 R)
• M18: 11,706,781 km (0.108 R)
• M19: 11,899,613 km (0.051 R)
• M20: 13,239,262 km (0.065 R)
• M21: 22,443,720 km (0.058 R)
• M22: 23,041,962 km (0.094 R)
• M23: 25,112,695 km (0.068 R)
• M24: 28,331,144 km (0.048 R)
• M25: 29,739,608 km (0.109 R)
• M26: 38,188,447 km (0.115 R)
• M27: 39,905,382 km (0.087 R)
• M28: 47,288,336 km (0.096 R)
• M29: 54,452,727 km (0.114 R)
• M30: 54,810,715 km (0.1 R)
• M31: 55,350,913 km (0.105 R)
• M32: 60,372,913 km (0.113 R)
• M33: 67,943,015 km (0.068 R)
• M34: 71,311,211 km (0.1 R)
• M35: 71,525,285 km (0.109 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 12,987 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit