🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736

Radius: 11.4

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.85 AU - 1.33 AU

Year: 735 Days

Day: 9.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,764,951 km

• M1: 141,819 km (0.065 R)
• M2: 712,834 km (0.082 R)
• M3: 1,084,435 km (0.07 R)
• M4: 1,490,444 km (0.118 R)
• M5: 2,239,779 km (0.064 R)
• M6: 2,632,923 km (0.117 R)
• M7: 4,161,663 km (0.076 R)
• M8: 4,626,913 km (0.062 R)
• M9: 5,144,521 km (0.071 R)
• M10: 5,662,279 km (0.036 R)
• M11: 6,214,595 km (0.056 R)
• M12: 6,846,047 km (0.108 R)
• M13: 8,212,474 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221

Radius: 14

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.56 AU - 2.64 AU

Year: 2707 Days

Day: 8.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,764,951 km

• M1: 174,132 km (0.108 R)
• M2: 1,096,552 km (0.076 R)
• M3: 2,324,751 km (0.12 R)
• M4: 3,333,489 km (0.088 R)
• M5: 4,008,475 km (0.107 R)
• M6: 4,636,188 km (0.052 R)
• M7: 5,545,294 km (0.101 R)
• M8: 6,375,113 km (0.091 R)
• M9: 7,024,667 km (0.088 R)
• M10: 7,554,094 km (0.082 R)
• M11: 10,647,628 km (0.086 R)
• M12: 11,527,862 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.3

Radius: 9.6

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.32 AU - 3.42 AU

Year: 3139 Days

Day: 13.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,764,951 km

• M1: 120,127 km (0.087 R)
• M2: 444,605 km (0.114 R)
• M3: 871,258 km (0.115 R)
• M4: 1,207,853 km (0.06 R)
• M5: 1,522,757 km (0.119 R)
• M6: 1,995,037 km (0.081 R)
• M7: 2,501,576 km (0.039 R)
• M8: 3,162,948 km (0.086 R)
• M9: 3,692,375 km (0.108 R)
• M10: 4,148,798 km (0.063 R)
• M11: 4,689,444 km (0.116 R)
• M12: 6,656,058 km (0.081 R)
• M13: 7,559,031 km (0.111 R)
• M14: 8,435,974 km (0.093 R)
• M15: 9,417,036 km (0.04 R)
• M16: 11,133,822 km (0.11 R)
• M17: 14,160,486 km (0.113 R)
• M18: 15,648,984 km (0.117 R)
• M19: 19,667,482 km (0.039 R)
• M20: 21,255,015 km (0.077 R)
• M21: 22,585,389 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.8

Radius: 14.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 3.47 AU - 3.93 AU

Year: 4595 Days

Day: 7.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 113.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,764,951 km

• M1: 177,872 km (0.111 R)
• M2: 784,790 km (0.1 R)
• M3: 1,458,430 km (0.066 R)
• M4: 2,393,865 km (0.119 R)
• M5: 2,933,165 km (0.077 R)
• M6: 3,512,109 km (0.077 R)
• M7: 3,962,399 km (0.097 R)
• M8: 4,475,669 km (0.102 R)
• M9: 4,980,861 km (0.11 R)
• M10: 6,197,690 km (0.088 R)
• M11: 7,057,878 km (0.09 R)
• M12: 9,016,712 km (0.083 R)
• M13: 10,122,091 km (0.096 R)
• M14: 11,500,636 km (0.103 R)
• M15: 13,051,517 km (0.1 R)
• M16: 14,036,020 km (0.101 R)
• M17: 18,348,179 km (0.08 R)
• M18: 19,583,708 km (0.115 R)
• M19: 20,323,918 km (0.107 R)
• M20: 22,075,859 km (0.1 R)
• M21: 27,934,859 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.3

Radius: 11

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 3.39 AU - 5.13 AU

Year: 5677 Days

Day: 5 Hours

Environment

Temp: -217 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,764,951 km

• M1: 136,732 km (0.105 R)
• M2: 508,184 km (0.059 R)
• M3: 967,898 km (0.092 R)
• M4: 1,493,436 km (0.111 R)
• M5: 2,834,730 km (0.085 R)
• M6: 3,203,040 km (0.097 R)
• M7: 3,772,709 km (0.069 R)
• M8: 5,089,020 km (0.08 R)
• M9: 6,531,892 km (0.087 R)
• M10: 9,222,559 km (0.057 R)
• M11: 9,624,529 km (0.097 R)
• M12: 13,632,854 km (0.065 R)
• M13: 15,129,132 km (0.026 R)
• M14: 15,802,771 km (0.091 R)
• M15: 19,084,799 km (0.109 R)
• M16: 26,880,942 km (0.077 R)
• M17: 27,537,228 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.5

Radius: 12.2

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.56 AU - 7.22 AU

Year: 9230 Days

Day: 6.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,764,951 km

• M1: 151,692 km (0.114 R)
• M2: 568,023 km (0.107 R)
• M3: 1,033,422 km (0.086 R)
• M4: 1,929,663 km (0.107 R)
• M5: 2,595,074 km (0.078 R)
• M6: 4,986,396 km (0.082 R)
• M7: 5,849,426 km (0.071 R)
• M8: 6,243,467 km (0.115 R)
• M9: 7,165,439 km (0.039 R)
• M10: 8,624,168 km (0.111 R)
• M11: 9,472,388 km (0.081 R)
• M12: 10,427,271 km (0.105 R)
• M13: 11,225,525 km (0.119 R)
• M14: 13,740,714 km (0.105 R)
• M15: 15,772,552 km (0.115 R)
• M16: 16,610,450 km (0.098 R)
• M17: 18,990,253 km (0.044 R)
• M18: 20,918,270 km (0.12 R)
• M19: 23,418,051 km (0.084 R)
• M20: 28,694,966 km (0.07 R)
• M21: 30,154,892 km (0.069 R)
• M22: 32,325,557 km (0.108 R)
• M23: 38,954,986 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.3

Radius: 6.9

Gravity: 14.5 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.78 AU - 8.64 AU

Year: 12500 Days

Day: 16.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,764,951 km

• M1: 85,869 km (0.104 R)
• M2: 511,475 km (0.083 R)
• M3: 1,457,831 km (0.052 R)
• M4: 2,160,343 km (0.071 R)
• M5: 2,815,582 km (0.031 R)
• M6: 5,977,931 km (0.107 R)
• M7: 6,798,176 km (0.036 R)
• M8: 7,129,535 km (0.07 R)
• M9: 8,564,328 km (0.081 R)
• M10: 9,049,624 km (0.109 R)
• M11: 11,232,855 km (0.119 R)
• M12: 11,463,086 km (0.099 R)
• M13: 12,052,502 km (0.075 R)
• M14: 16,608,056 km (0.077 R)
• M15: 17,058,047 km (0.088 R)
• M16: 17,439,073 km (0.053 R)
• M17: 19,762,477 km (0.109 R)
• M18: 20,267,669 km (0.045 R)
• M19: 20,695,220 km (0.12 R)
• M20: 21,924,466 km (0.075 R)
• M21: 23,201,583 km (0.096 R)
• M22: 24,143,750 km (0.108 R)
• M23: 25,111,050 km (0.108 R)
• M24: 27,537,826 km (0.091 R)
• M25: 33,799,245 km (0.089 R)
• M26: 35,872,821 km (0.118 R)
• M27: 37,131,239 km (0.104 R)
• M28: 39,205,712 km (0.065 R)
• M29: 39,470,351 km (0.105 R)
• M30: 41,083,166 km (0.112 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 10,797 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit