🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.55 AU - 0.67 AU

Year: 303 Days

Day: 37.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.6

Radius: 15

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.63 AU - 0.91 AU

Year: 430 Days

Day: 9.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,576,725 km

• M1: 186,549 km (0.063 R)
• M2: 725,550 km (0.096 R)
• M3: 1,559,707 km (0.085 R)
• M4: 3,048,505 km (0.041 R)
• M5: 3,555,044 km (0.109 R)
• M6: 4,251,272 km (0.11 R)
• M7: 5,506,099 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.1

Radius: 14

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.32 AU - 1.66 AU

Year: 1156 Days

Day: 12.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,576,725 km

• M1: 174,132 km (0.116 R)
• M2: 831,615 km (0.08 R)
• M3: 2,297,674 km (0.106 R)
• M4: 3,371,038 km (0.103 R)
• M5: 4,155,230 km (0.073 R)
• M6: 5,214,383 km (0.107 R)
• M7: 7,969,527 km (0.063 R)
• M8: 9,721,169 km (0.049 R)
• M9: 10,464,072 km (0.056 R)
• M10: 11,012,797 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.8

Radius: 11.7

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.33 AU - 3.03 AU

Year: 2790 Days

Day: 8.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,576,725 km

• M1: 154,535 km (0.08 R)
• M2: 781,200 km (0.086 R)
• M3: 1,484,759 km (0.111 R)
• M4: 2,070,883 km (0.074 R)
• M5: 2,539,873 km (0.078 R)
• M6: 3,295,491 km (0.112 R)
• M7: 3,972,871 km (0.086 R)
• M8: 4,372,147 km (0.088 R)
• M9: 6,885,691 km (0.081 R)
• M10: 7,361,562 km (0.112 R)
• M11: 7,726,281 km (0.059 R)
• M12: 8,864,422 km (0.054 R)
• M13: 11,540,578 km (0.112 R)
• M14: 11,998,198 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909

Radius: 14.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.31 AU - 5.05 AU

Year: 5434 Days

Day: 10.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 77,576,725 km

• M1: 185,352 km (0.1 R)
• M2: 1,001,408 km (0.114 R)
• M3: 1,617,901 km (0.104 R)
• M4: 2,099,756 km (0.119 R)
• M5: 2,751,703 km (0.034 R)
• M6: 4,391,296 km (0.051 R)
• M7: 6,545,056 km (0.116 R)
• M8: 7,350,791 km (0.041 R)
• M9: 8,703,155 km (0.041 R)
• M10: 9,374,251 km (0.119 R)
• M11: 11,350,290 km (0.11 R)
• M12: 12,410,490 km (0.081 R)
• M13: 13,153,393 km (0.102 R)
• M14: 13,646,467 km (0.108 R)
• M15: 15,260,180 km (0.104 R)
• M16: 16,113,336 km (0.093 R)
• M17: 16,678,367 km (0.115 R)
• M18: 18,726,811 km (0.119 R)
• M19: 19,990,614 km (0.079 R)
• M20: 21,086,568 km (0.118 R)
• M21: 23,159,845 km (0.106 R)
• M22: 26,650,412 km (0.077 R)
• M23: 30,003,947 km (0.118 R)
• M24: 30,573,167 km (0.058 R)
• M25: 32,721,991 km (0.085 R)
• M26: 34,038,153 km (0.084 R)
• M27: 34,969,849 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.5

Radius: 4.6

Gravity: 26.72 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 10.28 AU - 11.38 AU

Year: 22661 Days

Day: 20.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 77,576,725 km

• M1: 57,296 km (0.066 R)
• M2: 247,884 km (0.036 R)
• M3: 424,708 km (0.108 R)
• M4: 882,627 km (0.112 R)
• M5: 1,467,406 km (0.105 R)
• M6: 3,130,934 km (0.062 R)
• M7: 4,210,881 km (0.036 R)
• M8: 4,378,430 km (0.09 R)
• M9: 4,762,448 km (0.119 R)
• M10: 9,233,181 km (0.079 R)
• M11: 9,631,261 km (0.116 R)
• M12: 11,274,593 km (0.096 R)
• M13: 11,861,316 km (0.08 R)
• M14: 13,670,852 km (0.061 R)
• M15: 14,413,306 km (0.076 R)
• M16: 14,948,717 km (0.104 R)
• M17: 15,339,167 km (0.117 R)
• M18: 17,308,773 km (0.067 R)
• M19: 18,088,926 km (0.074 R)
• M20: 23,268,004 km (0.026 R)
• M21: 23,792,345 km (0.119 R)
• M22: 24,431,875 km (0.048 R)
• M23: 25,856,646 km (0.08 R)
• M24: 43,902,936 km (0.025 R)
• M25: 46,662,867 km (0.061 R)
• M26: 48,339,111 km (0.108 R)
• M27: 48,679,147 km (0.077 R)
• M28: 49,192,118 km (0.08 R)
• M29: 53,790,158 km (0.107 R)
• M30: 55,260,556 km (0.095 R)
• M31: 56,757,582 km (0.107 R)
• M32: 58,473,619 km (0.113 R)
• M33: 65,892,776 km (0.109 R)
• M34: 66,101,614 km (0.071 R)
• M35: 67,152,091 km (0.12 R)
• M36: 68,213,787 km (0.063 R)
• M37: 69,502,423 km (0.12 R)
• M38: 69,718,741 km (0.102 R)
• M39: 74,366,298 km (0.081 R)
• M40: 76,189,747 km (0.054 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: 478 - 14,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit