🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.06 AU - 1.26 AU

Year: 452 Days

Day: 18.2 Hours

Environment

Temp: 22 °C

Axial Tilt: 129 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.1 AU - 1.44 AU

Year: 518 Days

Day: 47.2 Hours

Environment

Temp: 16 °C

Axial Tilt: 48.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 40,980,888 km

• M1: 163,959 km (0.095 R)
• M2: 299,794 km (0.086 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.24 AU - 1.52 AU

Year: 586 Days

Day: 22.9 Hours

Environment

Temp: -17 °C

Axial Tilt: 12.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.67 AU - 2.41 AU

Year: 1054 Days

Day: 34.9 Hours

Environment

Temp: -71 °C

Axial Tilt: 45.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.1

Radius: 14.1

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.26 AU - 6.44 AU

Year: 5117 Days

Day: 11 Hours

Environment

Temp: -145 °C

Axial Tilt: 175.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,980,888 km

• M1: 175,628 km (0.075 R)
• M2: 633,547 km (0.068 R)
• M3: 1,074,262 km (0.11 R)
• M4: 1,745,059 km (0.116 R)
• M5: 2,498,733 km (0.074 R)
• M6: 3,074,386 km (0.105 R)
• M7: 5,174,740 km (0.099 R)
• M8: 7,628,594 km (0.118 R)
• M9: 8,137,376 km (0.082 R)
• M10: 8,814,456 km (0.109 R)
• M11: 11,506,470 km (0.027 R)
• M12: 12,732,424 km (0.118 R)
• M13: 16,039,734 km (0.081 R)
• M14: 16,651,290 km (0.081 R)
• M15: 17,163,214 km (0.117 R)
• M16: 19,441,290 km (0.036 R)
• M17: 20,200,948 km (0.073 R)
• M18: 20,980,204 km (0.028 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.1

Radius: 10.9

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.51 AU - 7.67 AU

Year: 6827 Days

Day: 10.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 51.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,980,888 km

• M1: 140,024 km (0.117 R)
• M2: 520,152 km (0.074 R)
• M3: 1,133,204 km (0.047 R)
• M4: 2,865,547 km (0.077 R)
• M5: 3,502,385 km (0.07 R)
• M6: 5,598,850 km (0.071 R)
• M7: 7,241,285 km (0.113 R)
• M8: 11,498,840 km (0.103 R)
• M9: 12,946,798 km (0.089 R)
• M10: 15,312,389 km (0.058 R)
• M11: 16,383,211 km (0.087 R)
• M12: 22,498,473 km (0.057 R)
• M13: 29,079,133 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.7

Radius: 10.9

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 7.62 AU - 11.02 AU

Year: 10290 Days

Day: 8.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 40,980,888 km

• M1: 135,685 km (0.064 R)
• M2: 481,107 km (0.051 R)
• M3: 841,488 km (0.116 R)
• M4: 1,301,801 km (0.067 R)
• M5: 1,704,668 km (0.107 R)
• M6: 2,360,056 km (0.09 R)
• M7: 2,790,150 km (0.099 R)
• M8: 3,129,139 km (0.033 R)
• M9: 4,085,967 km (0.076 R)
• M10: 6,074,571 km (0.076 R)
• M11: 8,040,437 km (0.1 R)
• M12: 9,821,399 km (0.077 R)
• M13: 14,016,273 km (0.1 R)
• M14: 14,613,019 km (0.109 R)
• M15: 16,798,794 km (0.088 R)
• M16: 17,548,129 km (0.067 R)
• M17: 19,194,304 km (0.115 R)
• M18: 19,930,326 km (0.078 R)
• M19: 21,112,598 km (0.066 R)
• M20: 26,814,521 km (0.081 R)
• M21: 27,631,176 km (0.092 R)
• M22: 28,887,199 km (0.09 R)
• M23: 29,314,152 km (0.047 R)
• M24: 32,307,455 km (0.102 R)
• M25: 36,483,330 km (0.095 R)
• M26: 40,072,782 km (0.105 R)
• M27: 44,031,889 km (0.111 R)
• M28: 47,945,519 km (0.077 R)
• M29: 49,604,410 km (0.058 R)
• M30: 50,679,869 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.3

Radius: 11.8

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 9.67 AU - 13.27 AU

Year: 14049 Days

Day: 8.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,980,888 km

• M1: 171,140 km (0.075 R)
• M2: 739,013 km (0.037 R)
• M3: 1,602,492 km (0.104 R)
• M4: 2,403,589 km (0.082 R)
• M5: 2,787,906 km (0.088 R)
• M6: 4,884,670 km (0.113 R)
• M7: 8,406,503 km (0.095 R)
• M8: 11,678,208 km (0.106 R)
• M9: 13,037,006 km (0.106 R)
• M10: 13,470,839 km (0.046 R)
• M11: 15,235,047 km (0.102 R)
• M12: 15,925,890 km (0.099 R)
• M13: 16,421,957 km (0.099 R)
• M14: 19,617,816 km (0.104 R)
• M15: 21,191,286 km (0.113 R)
• M16: 26,811,678 km (0.117 R)
• M17: 29,271,666 km (0.12 R)
• M18: 31,212,698 km (0.064 R)
• M19: 34,165,910 km (0.12 R)
• M20: 38,050,218 km (0.105 R)
• M21: 39,193,595 km (0.086 R)
• M22: 40,359,710 km (0.1 R)
• M23: 41,282,580 km (0.114 R)
• M24: 44,834,033 km (0.096 R)
• M25: 47,408,762 km (0.111 R)
• M26: 49,778,841 km (0.12 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.5

Radius: 13.9

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 11.41 AU - 13.29 AU

Year: 15696 Days

Day: 8 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,980,888 km

• M1: 172,935 km (0.026 R)
• M2: 959,521 km (0.096 R)
• M3: 1,392,008 km (0.085 R)
• M4: 2,612,128 km (0.045 R)
• M5: 3,267,666 km (0.081 R)
• M6: 5,797,217 km (0.116 R)
• M7: 6,529,947 km (0.045 R)
• M8: 8,634,041 km (0.1 R)
• M9: 9,264,447 km (0.069 R)
• M10: 10,052,827 km (0.08 R)
• M11: 11,112,130 km (0.098 R)
• M12: 11,858,773 km (0.115 R)
• M13: 15,184,932 km (0.105 R)
• M14: 15,871,586 km (0.111 R)
• M15: 23,541,469 km (0.119 R)
• M16: 26,211,342 km (0.088 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.4

Radius: 6.8

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 11.95 AU - 18.11 AU

Year: 21073 Days

Day: 20.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 135.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,980,888 km

• M1: 84,523 km (0.074 R)
• M2: 315,203 km (0.11 R)
• M3: 820,096 km (0.094 R)
• M4: 1,691,952 km (0.096 R)
• M5: 1,945,371 km (0.106 R)
• M6: 3,007,516 km (0.055 R)
• M7: 6,002,465 km (0.095 R)
• M8: 6,452,904 km (0.08 R)
• M9: 8,146,801 km (0.053 R)
• M10: 9,737,325 km (0.085 R)
• M11: 11,263,972 km (0.089 R)
• M12: 13,171,943 km (0.073 R)
• M13: 15,349,041 km (0.091 R)
• M14: 18,321,999 km (0.035 R)
• M15: 18,755,085 km (0.119 R)
• M16: 20,633,286 km (0.103 R)
• M17: 25,735,621 km (0.081 R)
• M18: 29,109,950 km (0.096 R)
• M19: 32,347,248 km (0.069 R)
• M20: 34,487,844 km (0.063 R)
• M21: 35,704,673 km (0.101 R)
• M22: 38,811,971 km (0.08 R)

Kuiper Belt

Range: 30.3 - 49.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 10,774 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit