🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.72 AU - 1.08 AU

Year: 387 Days

Day: 29.2 Hours

Environment

Temp: -72 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.28 AU - 1.38 AU

Year: 695 Days

Day: 21.1 Hours

Environment

Temp: -97 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.04 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.5

Radius: 9.5

Gravity: 8.91 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.26 AU - 3.22 AU

Year: 2055 Days

Day: 8.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,731,454 km

• M1: 118,182 km (0.058 R)
• M2: 425,606 km (0.109 R)
• M3: 1,078,002 km (0.088 R)
• M4: 1,649,167 km (0.11 R)
• M5: 2,138,502 km (0.046 R)
• M6: 2,663,740 km (0.1 R)
• M7: 3,044,167 km (0.099 R)
• M8: 5,378,941 km (0.045 R)
• M9: 6,117,805 km (0.083 R)
• M10: 7,120,260 km (0.074 R)
• M11: 8,165,949 km (0.109 R)
• M12: 8,611,751 km (0.111 R)
• M13: 9,242,755 km (0.099 R)
• M14: 10,047,442 km (0.108 R)
• M15: 10,974,350 km (0.072 R)
• M16: 11,557,184 km (0.086 R)
• M17: 12,407,647 km (0.058 R)
• M18: 14,926,277 km (0.112 R)
• M19: 17,244,895 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.3

Radius: 14.6

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.49 AU - 4.79 AU

Year: 3816 Days

Day: 5.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,731,454 km

• M1: 202,705 km (0.096 R)
• M2: 858,093 km (0.04 R)
• M3: 1,312,721 km (0.117 R)
• M4: 2,737,043 km (0.119 R)
• M5: 4,105,564 km (0.107 R)
• M6: 5,461,669 km (0.105 R)
• M7: 5,919,438 km (0.107 R)
• M8: 7,678,859 km (0.1 R)
• M9: 8,643,615 km (0.065 R)
• M10: 9,843,689 km (0.075 R)
• M11: 10,856,467 km (0.092 R)
• M12: 14,721,627 km (0.077 R)
• M13: 16,934,180 km (0.092 R)
• M14: 17,390,603 km (0.103 R)
• M15: 20,303,722 km (0.113 R)
• M16: 23,247,360 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.8

Radius: 13.6

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 6.25 AU - 6.31 AU

Year: 7130 Days

Day: 8.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,731,454 km

• M1: 177,722 km (0.041 R)
• M2: 667,057 km (0.109 R)
• M3: 1,500,467 km (0.119 R)
• M4: 2,779,080 km (0.037 R)
• M5: 3,295,491 km (0.094 R)
• M6: 4,634,542 km (0.043 R)
• M7: 5,427,710 km (0.091 R)
• M8: 7,515,199 km (0.07 R)
• M9: 8,234,615 km (0.114 R)
• M10: 8,955,826 km (0.03 R)
• M11: 10,524,809 km (0.096 R)
• M12: 11,069,794 km (0.049 R)
• M13: 11,529,508 km (0.106 R)
• M14: 13,440,621 km (0.104 R)
• M15: 16,262,635 km (0.064 R)
• M16: 18,374,059 km (0.025 R)
• M17: 19,165,582 km (0.089 R)
• M18: 20,509,419 km (0.054 R)
• M19: 27,159,045 km (0.1 R)
• M20: 28,280,879 km (0.091 R)
• M21: 30,917,841 km (0.094 R)
• M22: 33,714,573 km (0.083 R)
• M23: 35,781,118 km (0.115 R)
• M24: 36,563,365 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662.8

Radius: 4.2

Gravity: 37.57 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 9.41 AU - 10.75 AU

Year: 14499 Days

Day: 18.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 60,731,454 km

• M1: 61,784 km (0.113 R)
• M2: 229,633 km (0.101 R)
• M3: 530,474 km (0.111 R)
• M4: 944,561 km (0.049 R)
• M5: 1,384,229 km (0.113 R)
• M6: 2,135,210 km (0.088 R)
• M7: 2,374,567 km (0.098 R)
• M8: 3,569,256 km (0.099 R)
• M9: 5,435,489 km (0.105 R)
• M10: 8,292,210 km (0.034 R)
• M11: 9,448,602 km (0.102 R)
• M12: 13,489,390 km (0.11 R)
• M13: 14,654,159 km (0.066 R)
• M14: 15,152,768 km (0.056 R)
• M15: 17,418,129 km (0.095 R)
• M16: 20,334,539 km (0.119 R)
• M17: 21,678,377 km (0.106 R)
• M18: 22,046,388 km (0.087 R)
• M19: 23,852,034 km (0.043 R)
• M20: 29,742,749 km (0.053 R)
• M21: 31,588,338 km (0.089 R)
• M22: 34,124,621 km (0.066 R)
• M23: 35,378,700 km (0.106 R)
• M24: 37,712,875 km (0.096 R)
• M25: 39,597,808 km (0.11 R)
• M26: 40,009,651 km (0.069 R)
• M27: 48,702,784 km (0.114 R)
• M28: 50,935,532 km (0.116 R)
• M29: 52,736,989 km (0.076 R)
• M30: 52,902,893 km (0.062 R)
• M31: 53,235,599 km (0.098 R)
• M32: 53,402,550 km (0.092 R)
• M33: 54,411,139 km (0.118 R)
• M34: 55,604,033 km (0.082 R)
• M35: 56,466,614 km (0.103 R)
• M36: 59,825,834 km (0.06 R)
• M37: 60,549,589 km (0.079 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 18,466 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit