🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300

Radius: 9.3

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.46 AU - 0.72 AU

Year: 313 Days

Day: 13.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,008,200 km

• M1: 115,639 km (0.052 R)
• M2: 432,338 km (0.108 R)
• M3: 905,815 km (0.116 R)
• M4: 1,459,776 km (0.099 R)
• M5: 1,814,323 km (0.063 R)
• M6: 2,795,535 km (0.087 R)
• M7: 3,318,230 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.4

Radius: 10.1

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.73 AU - 2.81 AU

Year: 2361 Days

Day: 13.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,008,200 km

• M1: 125,662 km (0.037 R)
• M2: 516,561 km (0.095 R)
• M3: 1,164,021 km (0.11 R)
• M4: 1,552,228 km (0.089 R)
• M5: 2,014,784 km (0.113 R)
• M6: 2,455,051 km (0.104 R)
• M7: 3,120,013 km (0.081 R)
• M8: 3,675,919 km (0.086 R)
• M9: 4,441,262 km (0.115 R)
• M10: 5,192,243 km (0.112 R)
• M11: 6,025,503 km (0.079 R)
• M12: 6,583,204 km (0.101 R)
• M13: 6,973,954 km (0.12 R)
• M14: 7,321,170 km (0.087 R)
• M15: 8,176,421 km (0.107 R)
• M16: 9,233,929 km (0.094 R)
• M17: 9,582,342 km (0.051 R)
• M18: 10,012,137 km (0.103 R)
• M19: 12,066,415 km (0.072 R)
• M20: 12,399,270 km (0.06 R)
• M21: 13,083,381 km (0.11 R)
• M22: 15,924,245 km (0.081 R)
• M23: 17,621,133 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.5

Radius: 13.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.11 AU - 3.65 AU

Year: 4289 Days

Day: 9.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,008,200 km

• M1: 172,935 km (0.074 R)
• M2: 757,264 km (0.094 R)
• M3: 1,221,915 km (0.117 R)
• M4: 2,046,200 km (0.104 R)
• M5: 2,676,456 km (0.1 R)
• M6: 3,434,169 km (0.11 R)
• M7: 3,919,464 km (0.101 R)
• M8: 4,746,591 km (0.115 R)
• M9: 5,434,292 km (0.03 R)
• M10: 6,781,421 km (0.046 R)
• M11: 8,266,778 km (0.065 R)
• M12: 8,871,603 km (0.058 R)
• M13: 10,127,925 km (0.037 R)
• M14: 13,092,656 km (0.025 R)
• M15: 14,555,873 km (0.077 R)
• M16: 15,215,450 km (0.107 R)
• M17: 19,467,769 km (0.108 R)
• M18: 22,079,898 km (0.035 R)
• M19: 26,022,101 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.6

Radius: 8.9

Gravity: 10.22 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.74 AU - 4.14 AU

Year: 5398 Days

Day: 11.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,008,200 km

• M1: 110,702 km (0.118 R)
• M2: 556,504 km (0.094 R)
• M3: 869,762 km (0.118 R)
• M4: 1,147,416 km (0.11 R)
• M5: 2,006,855 km (0.106 R)
• M6: 2,385,188 km (0.108 R)
• M7: 3,814,297 km (0.03 R)
• M8: 4,098,982 km (0.089 R)
• M9: 5,040,102 km (0.11 R)
• M10: 5,621,738 km (0.118 R)
• M11: 6,378,105 km (0.118 R)
• M12: 7,380,411 km (0.054 R)
• M13: 9,013,571 km (0.056 R)
• M14: 9,651,307 km (0.118 R)
• M15: 11,597,276 km (0.109 R)
• M16: 14,408,968 km (0.102 R)
• M17: 15,820,124 km (0.065 R)
• M18: 16,621,819 km (0.07 R)
• M19: 17,064,629 km (0.119 R)
• M20: 18,778,722 km (0.109 R)
• M21: 19,537,183 km (0.083 R)
• M22: 19,888,738 km (0.119 R)
• M23: 21,860,288 km (0.065 R)
• M24: 23,244,816 km (0.118 R)
• M25: 23,798,777 km (0.111 R)
• M26: 24,687,089 km (0.098 R)
• M27: 26,787,593 km (0.12 R)
• M28: 29,095,888 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.2

Radius: 11.2

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.56 AU - 4.4 AU

Year: 5481 Days

Day: 13 Hours

Environment

Temp: -219 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,008,200 km

• M1: 139,425 km (0.114 R)
• M2: 514,168 km (0.096 R)
• M3: 921,972 km (0.046 R)
• M4: 2,212,702 km (0.069 R)
• M5: 4,415,830 km (0.075 R)
• M6: 8,228,182 km (0.114 R)
• M7: 9,427,359 km (0.075 R)
• M8: 9,801,204 km (0.064 R)
• M9: 15,200,191 km (0.048 R)
• M10: 20,638,672 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.1

Radius: 7.3

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.08 AU - 7.22 AU

Year: 10527 Days

Day: 19.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,008,200 km

• M1: 90,806 km (0.037 R)
• M2: 460,462 km (0.096 R)
• M3: 1,367,923 km (0.097 R)
• M4: 2,180,838 km (0.065 R)
• M5: 5,172,346 km (0.091 R)
• M6: 6,624,194 km (0.085 R)
• M7: 7,016,739 km (0.105 R)
• M8: 7,424,842 km (0.066 R)
• M9: 8,006,628 km (0.1 R)
• M10: 9,616,450 km (0.089 R)
• M11: 11,330,094 km (0.083 R)
• M12: 11,944,044 km (0.07 R)
• M13: 13,182,265 km (0.058 R)
• M14: 14,682,582 km (0.085 R)
• M15: 15,535,888 km (0.12 R)
• M16: 16,038,089 km (0.064 R)
• M17: 18,854,268 km (0.06 R)
• M18: 19,138,654 km (0.083 R)
• M19: 24,928,391 km (0.08 R)
• M20: 29,344,370 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.2

Radius: 3.8

Gravity: 69.2 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.3 AU - 10.1 AU

Year: 16208 Days

Day: 21.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,008,200 km

• M1: 47,273 km (0.112 R)
• M2: 239,955 km (0.115 R)
• M3: 463,005 km (0.086 R)
• M4: 731,534 km (0.086 R)
• M5: 867,368 km (0.1 R)
• M6: 1,782,608 km (0.102 R)
• M7: 2,457,743 km (0.094 R)
• M8: 2,741,082 km (0.064 R)
• M9: 4,225,841 km (0.077 R)
• M10: 4,459,812 km (0.108 R)
• M11: 5,063,888 km (0.102 R)
• M12: 6,432,708 km (0.11 R)
• M13: 6,652,917 km (0.103 R)
• M14: 7,979,850 km (0.098 R)
• M15: 9,361,236 km (0.112 R)
• M16: 15,678,754 km (0.06 R)
• M17: 15,837,328 km (0.115 R)
• M18: 37,005,876 km (0.076 R)
• M19: 41,227,228 km (0.096 R)
• M20: 45,275,048 km (0.08 R)
• M21: 51,830,875 km (0.111 R)
• M22: 57,660,405 km (0.061 R)
• M23: 60,342,545 km (0.102 R)
• M24: 65,337,020 km (0.057 R)
• M25: 68,250,737 km (0.112 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 18,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit