🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.4

Radius: 9.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.58 AU - 0.76 AU

Year: 385 Days

Day: 8.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,946,424 km

• M1: 118,182 km (0.072 R)
• M2: 486,791 km (0.04 R)
• M3: 809,474 km (0.097 R)
• M4: 1,106,725 km (0.115 R)
• M5: 1,535,323 km (0.101 R)
• M6: 2,010,446 km (0.059 R)
• M7: 2,334,176 km (0.082 R)
• M8: 2,636,812 km (0.116 R)
• M9: 4,787,880 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 13.1

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.69 AU - 1.09 AU

Year: 590 Days

Day: 7.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,946,424 km

• M1: 164,558 km (0.054 R)
• M2: 626,366 km (0.111 R)
• M3: 1,057,657 km (0.11 R)
• M4: 1,796,371 km (0.109 R)
• M5: 2,210,159 km (0.091 R)
• M6: 2,826,652 km (0.118 R)
• M7: 3,724,089 km (0.088 R)
• M8: 4,204,149 km (0.089 R)
• M9: 4,978,019 km (0.084 R)
• M10: 5,579,851 km (0.066 R)
• M11: 5,989,600 km (0.105 R)
• M12: 6,496,288 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.2

Radius: 11.7

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.79 AU - 1.29 AU

Year: 746 Days

Day: 6.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,946,424 km

• M1: 147,653 km (0.076 R)
• M2: 574,157 km (0.109 R)
• M3: 977,323 km (0.057 R)
• M4: 1,393,355 km (0.077 R)
• M5: 2,150,170 km (0.114 R)
• M6: 2,599,712 km (0.111 R)
• M7: 3,256,895 km (0.095 R)
• M8: 3,884,159 km (0.074 R)
• M9: 4,307,970 km (0.077 R)
• M10: 5,709,403 km (0.072 R)
• M11: 6,364,941 km (0.12 R)
• M12: 6,821,962 km (0.109 R)
• M13: 8,073,647 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.5

Radius: 11.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.15 AU - 1.53 AU

Year: 1090 Days

Day: 14.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,946,424 km

• M1: 145,559 km (0.116 R)
• M2: 538,702 km (0.083 R)
• M3: 1,010,085 km (0.045 R)
• M4: 1,835,715 km (0.092 R)
• M5: 3,221,740 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.2

Radius: 14.2

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.81 AU - 3.79 AU

Year: 4214 Days

Day: 12 Hours

Environment

Temp: -223 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,946,424 km

• M1: 176,525 km (0.106 R)
• M2: 658,231 km (0.079 R)
• M3: 5,055,810 km (0.114 R)
• M4: 6,165,975 km (0.086 R)
• M5: 8,178,516 km (0.079 R)
• M6: 11,291,498 km (0.116 R)
• M7: 11,971,869 km (0.049 R)
• M8: 15,122,400 km (0.089 R)
• M9: 15,897,167 km (0.03 R)
• M10: 20,923,207 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.8

Radius: 7.3

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 6.34 AU - 6.66 AU

Year: 11649 Days

Day: 25 Hours

Environment

Temp: -221 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 21,946,424 km

• M1: 90,806 km (0.114 R)
• M2: 649,554 km (0.113 R)
• M3: 923,468 km (0.079 R)
• M4: 1,326,185 km (0.106 R)
• M5: 1,636,152 km (0.089 R)
• M6: 3,290,106 km (0.109 R)
• M7: 3,568,508 km (0.077 R)
• M8: 3,835,241 km (0.119 R)
• M9: 5,071,368 km (0.119 R)
• M10: 5,654,800 km (0.113 R)
• M11: 6,514,090 km (0.112 R)
• M12: 6,873,125 km (0.084 R)
• M13: 8,029,815 km (0.116 R)
• M14: 8,257,503 km (0.115 R)
• M15: 10,778,078 km (0.106 R)
• M16: 12,697,568 km (0.114 R)
• M17: 13,069,618 km (0.113 R)
• M18: 13,512,727 km (0.055 R)
• M19: 13,900,485 km (0.12 R)
• M20: 14,429,014 km (0.063 R)
• M21: 15,737,995 km (0.103 R)
• M22: 19,805,113 km (0.07 R)
• M23: 20,054,343 km (0.091 R)
• M24: 26,280,606 km (0.058 R)
• M25: 29,180,411 km (0.105 R)
• M26: 50,080,281 km (0.093 R)
• M27: 50,388,452 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 928.2

Radius: 4.3

Gravity: 50.2 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.12 AU - 7.78 AU

Year: 12879 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 21,946,424 km

• M1: 54,005 km (0.114 R)
• M2: 278,102 km (0.109 R)
• M3: 685,757 km (0.095 R)
• M4: 899,233 km (0.102 R)
• M5: 1,057,358 km (0.085 R)
• M6: 2,454,452 km (0.1 R)
• M7: 3,717,806 km (0.056 R)
• M8: 5,361,139 km (0.104 R)
• M9: 6,692,261 km (0.102 R)
• M10: 7,210,468 km (0.106 R)
• M11: 7,388,938 km (0.09 R)
• M12: 7,801,529 km (0.045 R)
• M13: 8,037,295 km (0.108 R)
• M14: 8,522,890 km (0.098 R)
• M15: 9,822,447 km (0.07 R)
• M16: 11,979,797 km (0.044 R)
• M17: 14,223,018 km (0.081 R)
• M18: 14,788,797 km (0.078 R)
• M19: 16,040,632 km (0.08 R)
• M20: 17,521,501 km (0.096 R)
• M21: 18,089,225 km (0.093 R)
• M22: 18,921,587 km (0.031 R)
• M23: 24,458,205 km (0.08 R)
• M24: 24,861,521 km (0.114 R)
• M25: 34,643,127 km (0.074 R)
• M26: 35,923,984 km (0.096 R)
• M27: 42,950,895 km (0.118 R)
• M28: 49,223,085 km (0.12 R)
• M29: 52,159,542 km (0.041 R)
• M30: 59,642,277 km (0.075 R)
• M31: 60,189,506 km (0.052 R)
• M32: 62,224,786 km (0.089 R)
• M33: 62,787,573 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.3

Radius: 3.8

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 6.08 AU - 7.98 AU

Year: 13102 Days

Day: 20.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,946,424 km

• M1: 47,273 km (0.096 R)
• M2: 507,735 km (0.09 R)
• M3: 699,669 km (0.11 R)
• M4: 1,900,043 km (0.096 R)
• M5: 2,752,002 km (0.12 R)
• M6: 3,021,129 km (0.081 R)
• M7: 13,976,331 km (0.056 R)
• M8: 14,319,209 km (0.063 R)
• M9: 16,225,535 km (0.098 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 14,121 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit