🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.3

Radius: 14.3

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.7 AU - 0.84 AU

Year: 451 Days

Day: 6 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,226,793 km

• M1: 177,872 km (0.106 R)
• M2: 732,581 km (0.092 R)
• M3: 1,225,356 km (0.089 R)
• M4: 1,671,158 km (0.052 R)
• M5: 2,459,987 km (0.059 R)
• M6: 3,413,524 km (0.101 R)
• M7: 5,357,399 km (0.026 R)
• M8: 6,158,196 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.9

Radius: 10.1

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.94 AU - 1.26 AU

Year: 769 Days

Day: 10.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 104.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,226,793 km

• M1: 125,662 km (0.1 R)
• M2: 459,565 km (0.082 R)
• M3: 913,744 km (0.109 R)
• M4: 1,437,486 km (0.105 R)
• M5: 1,823,299 km (0.076 R)
• M6: 2,707,123 km (0.116 R)
• M7: 3,066,607 km (0.112 R)
• M8: 3,392,581 km (0.032 R)
• M9: 3,868,302 km (0.119 R)
• M10: 4,326,520 km (0.09 R)
• M11: 4,903,669 km (0.097 R)
• M12: 6,153,110 km (0.052 R)
• M13: 7,096,773 km (0.1 R)
• M14: 7,603,461 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.3

Radius: 10.7

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.01 AU - 1.21 AU

Year: 780 Days

Day: 9 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,226,793 km

• M1: 133,142 km (0.027 R)
• M2: 537,804 km (0.1 R)
• M3: 971,489 km (0.102 R)
• M4: 1,413,101 km (0.084 R)
• M5: 2,063,254 km (0.061 R)
• M6: 2,472,404 km (0.116 R)
• M7: 3,023,822 km (0.064 R)
• M8: 3,863,215 km (0.074 R)
• M9: 4,316,347 km (0.108 R)
• M10: 4,944,359 km (0.103 R)
• M11: 6,089,381 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.5

Radius: 11

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.21 AU - 1.83 AU

Year: 1250 Days

Day: 14 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,226,793 km

• M1: 138,228 km (0.089 R)
• M2: 1,026,092 km (0.109 R)
• M3: 1,566,888 km (0.115 R)
• M4: 2,486,017 km (0.083 R)
• M5: 3,212,465 km (0.112 R)
• M6: 3,716,161 km (0.095 R)
• M7: 4,457,119 km (0.104 R)
• M8: 5,336,006 km (0.115 R)
• M9: 6,208,312 km (0.086 R)
• M10: 7,199,098 km (0.109 R)
• M11: 8,908,852 km (0.096 R)
• M12: 9,971,596 km (0.103 R)
• M13: 10,908,677 km (0.083 R)
• M14: 12,765,186 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370

Radius: 13.5

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.44 AU - 2 AU

Year: 1504 Days

Day: 6 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,226,793 km

• M1: 167,849 km (0.108 R)
• M2: 602,879 km (0.114 R)
• M3: 1,056,759 km (0.115 R)
• M4: 1,618,799 km (0.081 R)
• M5: 2,056,971 km (0.1 R)
• M6: 2,635,914 km (0.096 R)
• M7: 3,140,209 km (0.114 R)
• M8: 3,849,752 km (0.115 R)
• M9: 4,277,302 km (0.099 R)
• M10: 4,700,215 km (0.09 R)
• M11: 6,317,967 km (0.112 R)
• M12: 7,278,834 km (0.116 R)
• M13: 9,668,211 km (0.094 R)
• M14: 10,245,958 km (0.104 R)
• M15: 10,750,253 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.5

Radius: 9.2

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.45 AU - 2.11 AU

Year: 1584 Days

Day: 6 Hours

Environment

Temp: -203 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,226,793 km

• M1: 114,442 km (0.086 R)
• M2: 594,652 km (0.106 R)
• M3: 1,141,432 km (0.108 R)
• M4: 1,489,546 km (0.117 R)
• M5: 1,974,542 km (0.045 R)
• M6: 2,684,384 km (0.08 R)
• M7: 3,588,853 km (0.118 R)
• M8: 4,010,270 km (0.074 R)
• M9: 4,931,643 km (0.034 R)
• M10: 5,987,954 km (0.077 R)
• M11: 7,107,096 km (0.063 R)
• M12: 7,773,554 km (0.091 R)
• M13: 9,071,016 km (0.075 R)
• M14: 9,392,353 km (0.043 R)
• M15: 10,897,906 km (0.077 R)
• M16: 11,335,031 km (0.11 R)
• M17: 12,597,637 km (0.112 R)
• M18: 13,824,638 km (0.119 R)
• M19: 14,207,908 km (0.029 R)
• M20: 14,598,209 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.5

Radius: 12.9

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.18 AU - 2.36 AU

Year: 2281 Days

Day: 11.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,226,793 km

• M1: 160,519 km (0.071 R)
• M2: 713,133 km (0.085 R)
• M3: 1,509,443 km (0.07 R)
• M4: 3,514,652 km (0.116 R)
• M5: 4,135,035 km (0.091 R)
• M6: 4,904,716 km (0.099 R)
• M7: 5,365,477 km (0.068 R)
• M8: 6,633,768 km (0.119 R)
• M9: 8,286,076 km (0.061 R)
• M10: 9,418,981 km (0.083 R)
• M11: 10,229,951 km (0.088 R)
• M12: 11,053,188 km (0.114 R)
• M13: 11,813,594 km (0.045 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.7

Radius: 10.5

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.42 AU - 4.76 AU

Year: 5516 Days

Day: 7.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,226,793 km

• M1: 130,599 km (0.08 R)
• M2: 494,571 km (0.081 R)
• M3: 2,272,092 km (0.082 R)
• M4: 2,744,971 km (0.051 R)
• M5: 3,298,334 km (0.06 R)
• M6: 3,769,567 km (0.087 R)
• M7: 4,102,273 km (0.115 R)
• M8: 5,524,500 km (0.068 R)
• M9: 5,909,116 km (0.048 R)
• M10: 6,287,449 km (0.103 R)
• M11: 10,122,540 km (0.105 R)
• M12: 11,227,919 km (0.029 R)
• M13: 11,662,650 km (0.099 R)
• M14: 13,313,163 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.5

Radius: 4.4

Gravity: 33.96 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.25 AU - 8.47 AU

Year: 13315 Days

Day: 20.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,226,793 km

• M1: 54,753 km (0.114 R)
• M2: 284,535 km (0.108 R)
• M3: 1,155,195 km (0.03 R)
• M4: 1,928,167 km (0.071 R)
• M5: 4,825,878 km (0.12 R)
• M6: 6,863,700 km (0.078 R)
• M7: 7,461,643 km (0.098 R)
• M8: 10,476,339 km (0.102 R)
• M9: 10,980,484 km (0.075 R)
• M10: 12,841,182 km (0.052 R)
• M11: 14,693,503 km (0.106 R)
• M12: 15,539,180 km (0.048 R)
• M13: 18,754,786 km (0.09 R)
• M14: 22,204,363 km (0.1 R)
• M15: 31,577,567 km (0.058 R)
• M16: 31,808,846 km (0.066 R)
• M17: 34,427,257 km (0.089 R)
• M18: 35,414,005 km (0.039 R)
• M19: 54,859,035 km (0.086 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: 543 - 12,196 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit