🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.1

Radius: 9.1

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.81 AU - 0.95 AU

Year: 550 Days

Day: 9.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,571,199 km

• M1: 113,096 km (0.092 R)
• M2: 411,843 km (0.053 R)
• M3: 791,373 km (0.093 R)
• M4: 1,305,541 km (0.075 R)
• M5: 1,654,253 km (0.096 R)
• M6: 2,276,431 km (0.088 R)
• M7: 3,237,148 km (0.082 R)
• M8: 3,576,436 km (0.106 R)
• M9: 3,925,747 km (0.04 R)
• M10: 5,145,868 km (0.077 R)
• M11: 5,486,951 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.6

Radius: 8.2

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.89 AU - 0.95 AU

Year: 588 Days

Day: 7.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,571,199 km

• M1: 102,026 km (0.079 R)
• M2: 395,986 km (0.108 R)
• M3: 651,648 km (0.11 R)
• M4: 972,237 km (0.049 R)
• M5: 1,294,919 km (0.063 R)
• M6: 1,629,270 km (0.111 R)
• M7: 2,037,972 km (0.086 R)
• M8: 2,309,342 km (0.08 R)
• M9: 3,119,564 km (0.104 R)
• M10: 3,583,767 km (0.11 R)
• M11: 3,886,553 km (0.075 R)
• M12: 4,665,359 km (0.104 R)
• M13: 5,206,604 km (0.079 R)
• M14: 5,492,635 km (0.072 R)
• M15: 6,041,360 km (0.057 R)
• M16: 6,510,051 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.9

Radius: 13.9

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.69 AU - 2.03 AU

Year: 1692 Days

Day: 8.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,571,199 km

• M1: 173,982 km (0.111 R)
• M2: 639,531 km (0.075 R)
• M3: 1,103,733 km (0.11 R)
• M4: 1,612,815 km (0.063 R)
• M5: 2,213,600 km (0.099 R)
• M6: 2,788,953 km (0.089 R)
• M7: 3,403,352 km (0.101 R)
• M8: 4,210,432 km (0.09 R)
• M9: 5,101,886 km (0.089 R)
• M10: 6,004,410 km (0.084 R)
• M11: 6,529,349 km (0.062 R)
• M12: 7,438,455 km (0.115 R)
• M13: 7,991,069 km (0.098 R)
• M14: 8,741,752 km (0.103 R)
• M15: 9,268,037 km (0.101 R)
• M16: 10,644,188 km (0.056 R)
• M17: 11,623,156 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.4

Radius: 13.4

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.78 AU - 2.02 AU

Year: 1746 Days

Day: 6.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,571,199 km

• M1: 166,652 km (0.082 R)
• M2: 591,061 km (0.117 R)
• M3: 1,052,720 km (0.102 R)
• M4: 1,666,371 km (0.084 R)
• M5: 2,526,110 km (0.068 R)
• M6: 3,080,519 km (0.103 R)
• M7: 3,578,680 km (0.049 R)
• M8: 4,019,396 km (0.08 R)
• M9: 4,516,360 km (0.109 R)
• M10: 5,228,296 km (0.107 R)
• M11: 5,681,278 km (0.053 R)
• M12: 7,422,448 km (0.07 R)
• M13: 8,144,557 km (0.108 R)
• M14: 9,966,958 km (0.047 R)
• M15: 10,488,756 km (0.102 R)
• M16: 11,028,804 km (0.117 R)
• M17: 11,854,285 km (0.094 R)
• M18: 12,361,272 km (0.104 R)
• M19: 14,185,618 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.2

Radius: 12.2

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.55 AU - 2.75 AU

Year: 2877 Days

Day: 8.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,571,199 km

• M1: 153,338 km (0.04 R)
• M2: 891,304 km (0.116 R)
• M3: 1,476,531 km (0.084 R)
• M4: 2,009,548 km (0.093 R)
• M5: 3,738,750 km (0.055 R)
• M6: 5,814,420 km (0.092 R)
• M7: 7,100,214 km (0.047 R)
• M8: 7,508,766 km (0.097 R)
• M9: 10,449,112 km (0.073 R)
• M10: 14,359,002 km (0.1 R)
• M11: 15,543,668 km (0.092 R)
• M12: 17,310,269 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 397.7

Radius: 4.2

Gravity: 22.55 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.07 AU - 6.31 AU

Year: 10270 Days

Day: 17.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,571,199 km

• M1: 52,210 km (0.092 R)
• M2: 363,074 km (0.102 R)
• M3: 559,795 km (0.111 R)
• M4: 879,336 km (0.039 R)
• M5: 1,434,943 km (0.079 R)
• M6: 2,595,822 km (0.077 R)
• M7: 3,284,272 km (0.085 R)
• M8: 3,634,480 km (0.088 R)
• M9: 5,801,106 km (0.106 R)
• M10: 11,371,383 km (0.073 R)
• M11: 14,418,093 km (0.116 R)
• M12: 15,866,350 km (0.077 R)
• M13: 16,659,069 km (0.061 R)
• M14: 19,641,752 km (0.114 R)
• M15: 19,943,042 km (0.116 R)
• M16: 23,803,864 km (0.068 R)
• M17: 24,146,443 km (0.062 R)
• M18: 29,885,017 km (0.081 R)
• M19: 36,017,931 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 273.1

Radius: 7.6

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 7.3 AU - 9.1 AU

Year: 15659 Days

Day: 21.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,571,199 km

• M1: 94,546 km (0.036 R)
• M2: 362,326 km (0.117 R)
• M3: 635,342 km (0.115 R)
• M4: 1,193,492 km (0.09 R)
• M5: 1,621,192 km (0.078 R)
• M6: 3,895,678 km (0.072 R)
• M7: 4,837,247 km (0.075 R)
• M8: 5,748,747 km (0.108 R)
• M9: 5,993,639 km (0.098 R)
• M10: 9,648,315 km (0.095 R)
• M11: 11,030,599 km (0.105 R)
• M12: 11,574,537 km (0.11 R)
• M13: 13,193,036 km (0.091 R)
• M14: 16,519,046 km (0.104 R)
• M15: 18,261,861 km (0.099 R)
• M16: 22,538,116 km (0.057 R)
• M17: 23,502,424 km (0.065 R)
• M18: 24,953,673 km (0.062 R)
• M19: 27,241,024 km (0.117 R)
• M20: 39,276,771 km (0.108 R)
• M21: 40,160,446 km (0.087 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 19,798 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit