🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.54 AU - 0.8 AU

Year: 202 Days

Day: 18.1 Hours

Environment

Temp: 180 °C

Axial Tilt: 45.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.77 AU - 1.03 AU

Year: 315 Days

Day: 19.5 Hours

Environment

Temp: 78 °C

Axial Tilt: 36.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Asteroid Belt

Center: 2.94 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.1

Radius: 11.1

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.82 AU - 6.12 AU

Year: 4088 Days

Day: 6.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 63.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,866,985 km

• M1: 146,606 km (0.037 R)
• M2: 562,189 km (0.031 R)
• M3: 1,102,237 km (0.113 R)
• M4: 6,868,487 km (0.05 R)
• M5: 7,597,627 km (0.078 R)
• M6: 9,115,148 km (0.048 R)
• M7: 9,597,751 km (0.091 R)
• M8: 10,684,280 km (0.092 R)
• M9: 11,964,688 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.7

Radius: 12.5

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.11 AU - 8.21 AU

Year: 7822 Days

Day: 11.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,866,985 km

• M1: 155,881 km (0.082 R)
• M2: 584,030 km (0.072 R)
• M3: 1,131,708 km (0.113 R)
• M4: 1,627,326 km (0.106 R)
• M5: 2,521,921 km (0.089 R)
• M6: 3,090,692 km (0.072 R)
• M7: 3,837,784 km (0.028 R)
• M8: 4,567,223 km (0.077 R)
• M9: 5,568,631 km (0.116 R)
• M10: 6,641,996 km (0.095 R)
• M11: 8,856,044 km (0.107 R)
• M12: 9,857,303 km (0.068 R)
• M13: 10,502,818 km (0.078 R)
• M14: 13,763,154 km (0.086 R)
• M15: 15,901,805 km (0.097 R)
• M16: 22,047,435 km (0.064 R)
• M17: 23,232,699 km (0.078 R)
• M18: 31,154,205 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.7

Radius: 11.3

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 8.57 AU - 12.85 AU

Year: 12932 Days

Day: 10.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,866,985 km

• M1: 145,858 km (0.06 R)
• M2: 615,296 km (0.098 R)
• M3: 1,030,281 km (0.084 R)
• M4: 1,513,332 km (0.027 R)
• M5: 2,128,778 km (0.065 R)
• M6: 7,179,202 km (0.084 R)
• M7: 7,619,917 km (0.055 R)
• M8: 9,189,797 km (0.043 R)
• M9: 12,842,528 km (0.086 R)
• M10: 14,415,999 km (0.105 R)
• M11: 17,652,250 km (0.083 R)
• M12: 18,755,683 km (0.082 R)
• M13: 22,005,847 km (0.118 R)
• M14: 27,219,333 km (0.108 R)
• M15: 29,192,828 km (0.119 R)
• M16: 41,521,936 km (0.056 R)
• M17: 44,532,743 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.2

Radius: 11.4

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 10.36 AU - 13.82 AU

Year: 15510 Days

Day: 7.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,866,985 km

• M1: 141,819 km (0.112 R)
• M2: 802,742 km (0.084 R)
• M3: 1,615,956 km (0.084 R)
• M4: 3,828,958 km (0.059 R)
• M5: 4,288,073 km (0.082 R)
• M6: 5,618,298 km (0.034 R)
• M7: 7,909,239 km (0.11 R)
• M8: 8,302,383 km (0.063 R)
• M9: 8,864,422 km (0.093 R)
• M10: 9,616,301 km (0.036 R)
• M11: 11,003,522 km (0.073 R)
• M12: 11,494,352 km (0.11 R)
• M13: 12,987,489 km (0.068 R)
• M14: 13,466,651 km (0.075 R)
• M15: 17,076,298 km (0.078 R)
• M16: 18,841,403 km (0.073 R)
• M17: 19,723,282 km (0.075 R)
• M18: 25,602,628 km (0.052 R)
• M19: 27,347,987 km (0.051 R)
• M20: 28,249,763 km (0.056 R)
• M21: 35,258,124 km (0.086 R)
• M22: 43,954,098 km (0.082 R)
• M23: 45,503,932 km (0.109 R)
• M24: 46,451,036 km (0.079 R)
• M25: 47,250,487 km (0.091 R)
• M26: 53,278,833 km (0.083 R)
• M27: 63,644,469 km (0.108 R)
• M28: 68,470,497 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.1

Radius: 6.4

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 16.78 AU - 20.98 AU

Year: 30268 Days

Day: 15 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,866,985 km

• M1: 118,182 km (0.042 R)
• M2: 446,101 km (0.088 R)
• M3: 809,624 km (0.114 R)
• M4: 1,249,741 km (0.068 R)
• M5: 3,415,170 km (0.095 R)
• M6: 4,330,709 km (0.087 R)
• M7: 5,436,237 km (0.049 R)
• M8: 6,553,284 km (0.046 R)
• M9: 6,929,074 km (0.07 R)
• M10: 7,231,112 km (0.06 R)
• M11: 8,001,691 km (0.069 R)
• M12: 8,382,567 km (0.04 R)
• M13: 8,926,056 km (0.1 R)
• M14: 10,303,853 km (0.066 R)
• M15: 12,563,977 km (0.106 R)
• M16: 12,948,743 km (0.111 R)
• M17: 14,707,565 km (0.101 R)
• M18: 16,927,897 km (0.088 R)
• M19: 20,929,640 km (0.11 R)
• M20: 21,470,436 km (0.116 R)
• M21: 21,744,200 km (0.112 R)
• M22: 22,298,909 km (0.068 R)
• M23: 29,148,846 km (0.033 R)
• M24: 37,147,694 km (0.047 R)
• M25: 37,807,271 km (0.075 R)
• M26: 38,609,116 km (0.083 R)
• M27: 39,695,645 km (0.078 R)
• M28: 40,384,992 km (0.117 R)
• M29: 60,684,825 km (0.069 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: 168 - 16,360 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit