🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.47 AU - 0.61 AU

Year: 260 Days

Day: 12.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 31.7 °

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: 684.2

Radius: 11.8

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.72 AU - 0.86 AU

Year: 461 Days

Day: 6 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,268,918 km

• M1: 147,354 km (0.049 R)
• M2: 604,824 km (0.098 R)
• M3: 1,219,223 km (0.106 R)
• M4: 1,685,669 km (0.108 R)
• M5: 2,774,741 km (0.104 R)
• M6: 3,305,515 km (0.087 R)
• M7: 3,760,142 km (0.106 R)
• M8: 4,270,570 km (0.116 R)
• M9: 5,299,654 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.2

Radius: 13.3

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.98 AU - 1.18 AU

Year: 736 Days

Day: 11.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,268,918 km

• M1: 167,998 km (0.117 R)
• M2: 588,518 km (0.107 R)
• M3: 1,066,932 km (0.063 R)
• M4: 1,566,589 km (0.113 R)
• M5: 2,136,557 km (0.114 R)
• M6: 2,913,867 km (0.113 R)
• M7: 3,901,662 km (0.084 R)
• M8: 4,726,246 km (0.071 R)
• M9: 5,835,215 km (0.101 R)
• M10: 6,349,233 km (0.09 R)
• M11: 6,893,320 km (0.112 R)
• M12: 7,468,374 km (0.113 R)
• M13: 7,885,154 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.8

Radius: 11.9

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.14 AU - 6.48 AU

Year: 9187 Days

Day: 12.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,268,918 km

• M1: 147,952 km (0.116 R)
• M2: 578,944 km (0.064 R)
• M3: 1,088,175 km (0.091 R)
• M4: 2,164,083 km (0.114 R)
• M5: 2,806,755 km (0.075 R)
• M6: 3,184,041 km (0.062 R)
• M7: 4,500,502 km (0.103 R)
• M8: 5,281,702 km (0.116 R)
• M9: 6,450,062 km (0.069 R)
• M10: 7,443,392 km (0.078 R)
• M11: 8,867,115 km (0.075 R)
• M12: 9,957,683 km (0.099 R)
• M13: 10,464,969 km (0.064 R)
• M14: 13,100,734 km (0.072 R)
• M15: 15,591,988 km (0.083 R)
• M16: 16,467,285 km (0.06 R)
• M17: 17,177,576 km (0.064 R)
• M18: 21,799,701 km (0.073 R)
• M19: 24,436,663 km (0.118 R)
• M20: 26,571,125 km (0.069 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.7

Radius: 5.8

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 8.45 AU - 8.99 AU

Year: 16892 Days

Day: 17.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 49,268,918 km

• M1: 72,106 km (0.104 R)
• M2: 442,511 km (0.04 R)
• M3: 686,505 km (0.108 R)
• M4: 878,289 km (0.075 R)
• M5: 1,062,145 km (0.106 R)
• M6: 1,335,161 km (0.114 R)
• M7: 1,824,047 km (0.097 R)
• M8: 2,584,303 km (0.087 R)
• M9: 6,148,173 km (0.092 R)
• M10: 6,559,867 km (0.11 R)
• M11: 8,898,381 km (0.076 R)
• M12: 9,621,387 km (0.074 R)
• M13: 10,912,566 km (0.099 R)
• M14: 11,238,839 km (0.051 R)
• M15: 11,684,042 km (0.088 R)
• M16: 12,140,765 km (0.119 R)
• M17: 16,304,074 km (0.097 R)
• M18: 18,054,817 km (0.039 R)
• M19: 19,526,860 km (0.116 R)
• M20: 19,927,184 km (0.076 R)
• M21: 20,993,518 km (0.114 R)
• M22: 22,795,574 km (0.12 R)
• M23: 25,450,338 km (0.119 R)
• M24: 26,802,703 km (0.119 R)
• M25: 29,127,304 km (0.114 R)
• M26: 29,755,016 km (0.12 R)
• M27: 33,370,348 km (0.111 R)
• M28: 34,521,055 km (0.116 R)
• M29: 35,106,282 km (0.092 R)
• M30: 36,779,983 km (0.093 R)
• M31: 37,145,450 km (0.116 R)
• M32: 45,670,584 km (0.045 R)
• M33: 46,375,789 km (0.118 R)
• M34: 48,680,942 km (0.104 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 10,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit