🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.64 AU - 0.7 AU

Year: 360 Days

Day: 43.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.1

Radius: 10.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.8 AU - 1.1 AU

Year: 607 Days

Day: 13.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,251,151 km

• M1: 135,386 km (0.101 R)
• M2: 559,795 km (0.12 R)
• M3: 897,886 km (0.106 R)
• M4: 1,343,838 km (0.079 R)
• M5: 1,757,177 km (0.101 R)
• M6: 2,246,661 km (0.116 R)
• M7: 2,619,309 km (0.108 R)
• M8: 3,318,081 km (0.112 R)
• M9: 4,788,329 km (0.088 R)
• M10: 5,379,539 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.3

Radius: 11.2

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.67 AU - 1.73 AU

Year: 1454 Days

Day: 13.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,251,151 km

• M1: 139,276 km (0.102 R)
• M2: 717,023 km (0.119 R)
• M3: 1,075,908 km (0.111 R)
• M4: 1,670,559 km (0.076 R)
• M5: 2,400,298 km (0.089 R)
• M6: 3,148,736 km (0.072 R)
• M7: 3,618,922 km (0.096 R)
• M8: 4,431,239 km (0.104 R)
• M9: 5,849,576 km (0.112 R)
• M10: 6,465,171 km (0.037 R)
• M11: 7,308,155 km (0.088 R)
• M12: 7,853,739 km (0.12 R)
• M13: 8,573,903 km (0.082 R)
• M14: 9,495,426 km (0.12 R)
• M15: 10,245,809 km (0.076 R)
• M16: 10,652,715 km (0.082 R)
• M17: 11,827,656 km (0.083 R)
• M18: 13,245,695 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.5

Radius: 14.5

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.19 AU - 4.65 AU

Year: 5091 Days

Day: 7.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,251,151 km

• M1: 180,565 km (0.08 R)
• M2: 1,090,120 km (0.106 R)
• M3: 3,358,023 km (0.07 R)
• M4: 5,032,323 km (0.078 R)
• M5: 6,938,349 km (0.091 R)
• M6: 9,582,192 km (0.111 R)
• M7: 10,623,094 km (0.096 R)
• M8: 17,265,988 km (0.116 R)
• M9: 20,312,548 km (0.081 R)
• M10: 21,254,117 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.5

Radius: 8.4

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.74 AU - 5.72 AU

Year: 6748 Days

Day: 11.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 24,251,151 km

• M1: 105,018 km (0.09 R)
• M2: 498,161 km (0.03 R)
• M3: 877,092 km (0.082 R)
• M4: 1,443,769 km (0.084 R)
• M5: 1,900,342 km (0.061 R)
• M6: 3,350,544 km (0.068 R)
• M7: 5,183,865 km (0.097 R)
• M8: 5,534,972 km (0.102 R)
• M9: 10,390,769 km (0.041 R)
• M10: 11,126,192 km (0.118 R)
• M11: 15,278,131 km (0.089 R)
• M12: 17,040,394 km (0.044 R)
• M13: 17,636,691 km (0.068 R)
• M14: 18,494,785 km (0.098 R)
• M15: 19,444,731 km (0.081 R)
• M16: 23,571,538 km (0.045 R)
• M17: 26,387,718 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.9

Radius: 8.5

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 5.06 AU - 5.16 AU

Year: 7578 Days

Day: 9.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 24,251,151 km

• M1: 105,766 km (0.102 R)
• M2: 449,392 km (0.1 R)
• M3: 1,394,402 km (0.094 R)
• M4: 2,027,500 km (0.078 R)
• M5: 3,082,165 km (0.07 R)
• M6: 4,727,442 km (0.115 R)
• M7: 5,022,898 km (0.062 R)
• M8: 5,880,244 km (0.1 R)
• M9: 6,633,618 km (0.12 R)
• M10: 7,121,607 km (0.087 R)
• M11: 7,851,046 km (0.104 R)
• M12: 8,496,112 km (0.06 R)
• M13: 8,797,701 km (0.044 R)
• M14: 10,151,113 km (0.055 R)
• M15: 11,034,638 km (0.077 R)
• M16: 12,010,315 km (0.078 R)
• M17: 14,509,198 km (0.105 R)
• M18: 14,844,148 km (0.1 R)
• M19: 15,479,939 km (0.108 R)
• M20: 16,805,825 km (0.111 R)
• M21: 17,821,445 km (0.118 R)
• M22: 19,104,994 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 55

Radius: 3.8

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 7.01 AU - 7.41 AU

Year: 12700 Days

Day: 19.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,251,151 km

• M1: 164,109 km (0.101 R)
• M2: 668,702 km (0.105 R)
• M3: 818,300 km (0.056 R)
• M4: 973,583 km (0.067 R)
• M5: 1,428,510 km (0.099 R)
• M6: 1,905,278 km (0.059 R)
• M7: 3,774,504 km (0.104 R)
• M8: 4,185,000 km (0.108 R)
• M9: 4,366,463 km (0.074 R)
• M10: 10,505,361 km (0.115 R)
• M11: 11,011,301 km (0.108 R)
• M12: 16,710,830 km (0.091 R)
• M13: 23,818,075 km (0.118 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 14,117 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit