🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.71 AU - 0.93 AU

Year: 283 Days

Day: 28.4 Hours

Environment

Temp: 140 °C

Axial Tilt: 2.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.82

Radius: 0.92

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.28 AU - 1.46 AU

Year: 611 Days

Day: 17.5 Hours

Environment

Temp: -41 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,360,634 km

• M1: 700,716 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.6

Radius: 14.2

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.68 AU - 4.8 AU

Year: 3325 Days

Day: 9.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,360,634 km

• M1: 176,525 km (0.083 R)
• M2: 633,996 km (0.083 R)
• M3: 1,096,702 km (0.108 R)
• M4: 1,545,496 km (0.065 R)
• M5: 2,347,789 km (0.033 R)
• M6: 3,300,877 km (0.069 R)
• M7: 4,180,064 km (0.096 R)
• M8: 5,689,656 km (0.113 R)
• M9: 6,434,055 km (0.094 R)
• M10: 7,604,509 km (0.086 R)
• M11: 8,294,005 km (0.09 R)
• M12: 9,367,669 km (0.059 R)
• M13: 11,127,538 km (0.119 R)
• M14: 12,109,050 km (0.11 R)
• M15: 13,342,484 km (0.071 R)
• M16: 13,838,701 km (0.099 R)
• M17: 14,502,018 km (0.083 R)
• M18: 15,347,694 km (0.076 R)
• M19: 16,906,355 km (0.116 R)
• M20: 18,142,931 km (0.111 R)
• M21: 20,206,783 km (0.114 R)
• M22: 21,194,877 km (0.107 R)
• M23: 22,284,248 km (0.117 R)
• M24: 24,648,493 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.6

Radius: 15

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.85 AU - 6.25 AU

Year: 4321 Days

Day: 10.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 103.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,360,634 km

• M1: 186,698 km (0.119 R)
• M2: 1,046,736 km (0.112 R)
• M3: 1,527,693 km (0.103 R)
• M4: 2,097,661 km (0.11 R)
• M5: 2,584,602 km (0.061 R)
• M6: 3,164,743 km (0.098 R)
• M7: 4,148,499 km (0.102 R)
• M8: 4,791,021 km (0.04 R)
• M9: 5,303,993 km (0.091 R)
• M10: 7,009,558 km (0.098 R)
• M11: 7,704,440 km (0.07 R)
• M12: 9,022,397 km (0.094 R)
• M13: 10,181,481 km (0.103 R)
• M14: 10,954,902 km (0.028 R)
• M15: 11,725,780 km (0.094 R)
• M16: 12,359,626 km (0.106 R)
• M17: 13,060,941 km (0.035 R)
• M18: 14,352,121 km (0.05 R)
• M19: 15,777,489 km (0.025 R)
• M20: 17,730,788 km (0.027 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 932.3

Radius: 7.6

Gravity: 16.14 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 10.67 AU - 12.71 AU

Year: 15220 Days

Day: 24 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 59,360,634 km

• M1: 94,695 km (0.086 R)
• M2: 607,068 km (0.102 R)
• M3: 1,101,639 km (0.116 R)
• M4: 2,548,849 km (0.1 R)
• M5: 3,261,383 km (0.088 R)
• M6: 4,553,161 km (0.107 R)
• M7: 6,837,969 km (0.104 R)
• M8: 7,106,497 km (0.111 R)
• M9: 8,403,062 km (0.093 R)
• M10: 8,815,952 km (0.117 R)
• M11: 10,367,880 km (0.077 R)
• M12: 14,074,916 km (0.087 R)
• M13: 14,510,245 km (0.069 R)
• M14: 15,792,748 km (0.081 R)
• M15: 16,262,785 km (0.101 R)
• M16: 16,661,612 km (0.112 R)
• M17: 17,148,853 km (0.082 R)
• M18: 17,479,015 km (0.041 R)
• M19: 17,982,113 km (0.082 R)
• M20: 19,459,841 km (0.116 R)
• M21: 20,458,257 km (0.103 R)
• M22: 23,152,963 km (0.107 R)
• M23: 25,643,768 km (0.104 R)
• M24: 31,890,077 km (0.068 R)
• M25: 32,894,029 km (0.106 R)
• M26: 33,275,952 km (0.103 R)
• M27: 33,789,671 km (0.101 R)
• M28: 38,937,483 km (0.105 R)
• M29: 39,364,885 km (0.06 R)
• M30: 49,911,534 km (0.044 R)
• M31: 57,101,507 km (0.096 R)
• M32: 59,517,812 km (0.105 R)
• M33: 63,170,543 km (0.103 R)
• M34: 68,614,559 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 301.1

Radius: 6

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 12.53 AU - 16.25 AU

Year: 20787 Days

Day: 18.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,360,634 km

• M1: 75,248 km (0.089 R)
• M2: 340,934 km (0.117 R)
• M3: 1,080,994 km (0.057 R)
• M4: 1,294,171 km (0.079 R)
• M5: 1,740,272 km (0.113 R)
• M6: 1,963,173 km (0.116 R)
• M7: 2,509,055 km (0.073 R)
• M8: 2,957,550 km (0.086 R)
• M9: 3,700,752 km (0.117 R)
• M10: 4,954,681 km (0.061 R)
• M11: 5,882,936 km (0.106 R)
• M12: 6,672,215 km (0.114 R)
• M13: 8,801,441 km (0.095 R)
• M14: 12,065,966 km (0.08 R)
• M15: 13,730,990 km (0.03 R)
• M16: 13,999,967 km (0.076 R)
• M17: 16,658,471 km (0.051 R)
• M18: 17,196,724 km (0.066 R)
• M19: 24,001,482 km (0.066 R)
• M20: 27,458,240 km (0.041 R)
• M21: 35,339,355 km (0.102 R)
• M22: 38,578,598 km (0.082 R)
• M23: 45,194,115 km (0.1 R)
• M24: 48,846,697 km (0.089 R)
• M25: 53,682,897 km (0.085 R)
• M26: 57,078,469 km (0.106 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 13,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit