🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.1

Radius: 12.3

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.44 AU - 0.72 AU

Year: 300 Days

Day: 7.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,089,421 km

• M1: 153,039 km (0.111 R)
• M2: 552,764 km (0.058 R)
• M3: 1,096,702 km (0.066 R)
• M4: 1,672,055 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256

Radius: 13.4

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.5 AU - 0.8 AU

Year: 355 Days

Day: 11.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,089,421 km

• M1: 166,951 km (0.088 R)
• M2: 631,303 km (0.117 R)
• M3: 1,168,659 km (0.107 R)
• M4: 1,605,784 km (0.101 R)
• M5: 2,498,584 km (0.071 R)
• M6: 3,166,239 km (0.1 R)
• M7: 3,721,696 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.7

Radius: 13.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.6 AU - 0.76 AU

Year: 380 Days

Day: 9.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 92 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,089,421 km

• M1: 165,605 km (0.055 R)
• M2: 645,515 km (0.089 R)
• M3: 1,149,360 km (0.107 R)
• M4: 1,792,930 km (0.11 R)
• M5: 2,679,148 km (0.096 R)
• M6: 3,245,227 km (0.102 R)
• M7: 3,827,312 km (0.099 R)
• M8: 4,942,714 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.8

Radius: 8.3

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.3 AU - 2.08 AU

Year: 1490 Days

Day: 9.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,089,421 km

• M1: 103,223 km (0.103 R)
• M2: 570,117 km (0.094 R)
• M3: 928,554 km (0.116 R)
• M4: 1,217,727 km (0.081 R)
• M5: 1,943,426 km (0.097 R)
• M6: 3,203,788 km (0.106 R)
• M7: 3,750,419 km (0.083 R)
• M8: 5,535,869 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.6

Radius: 11.9

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.62 AU - 3.54 AU

Year: 3666 Days

Day: 11.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,089,421 km

• M1: 147,952 km (0.071 R)
• M2: 542,292 km (0.106 R)
• M3: 1,288,786 km (0.118 R)
• M4: 1,699,581 km (0.086 R)
• M5: 2,688,573 km (0.08 R)
• M6: 4,947,800 km (0.092 R)
• M7: 5,898,794 km (0.059 R)
• M8: 7,202,090 km (0.12 R)
• M9: 8,961,062 km (0.039 R)
• M10: 11,069,644 km (0.047 R)
• M11: 12,734,369 km (0.089 R)
• M12: 13,399,930 km (0.064 R)
• M13: 14,275,826 km (0.095 R)
• M14: 16,502,740 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.6

Radius: 10.2

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.56 AU - 4.84 AU

Year: 5838 Days

Day: 13.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,089,421 km

• M1: 126,859 km (0.08 R)
• M2: 527,482 km (0.074 R)
• M3: 953,537 km (0.084 R)
• M4: 1,528,441 km (0.098 R)
• M5: 2,277,628 km (0.075 R)
• M6: 4,708,443 km (0.087 R)
• M7: 6,251,695 km (0.112 R)
• M8: 8,178,665 km (0.119 R)
• M9: 11,074,431 km (0.111 R)
• M10: 13,264,095 km (0.104 R)
• M11: 15,562,367 km (0.063 R)
• M12: 16,346,111 km (0.073 R)
• M13: 18,855,615 km (0.05 R)
• M14: 21,542,991 km (0.087 R)
• M15: 22,942,329 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.9

Radius: 7.4

Gravity: 15.94 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.97 AU - 8.07 AU

Year: 11292 Days

Day: 17.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 40,089,421 km

• M1: 92,003 km (0.076 R)
• M2: 414,685 km (0.04 R)
• M3: 1,139,038 km (0.081 R)
• M4: 1,901,090 km (0.116 R)
• M5: 2,524,913 km (0.108 R)
• M6: 3,719,601 km (0.104 R)
• M7: 4,350,007 km (0.12 R)
• M8: 6,915,461 km (0.112 R)
• M9: 7,598,824 km (0.093 R)
• M10: 8,803,984 km (0.109 R)
• M11: 9,149,107 km (0.108 R)
• M12: 10,510,746 km (0.109 R)
• M13: 13,370,758 km (0.108 R)
• M14: 14,293,777 km (0.1 R)
• M15: 19,471,659 km (0.069 R)
• M16: 22,067,631 km (0.069 R)
• M17: 23,448,419 km (0.053 R)
• M18: 25,476,966 km (0.099 R)
• M19: 26,995,684 km (0.075 R)
• M20: 28,253,203 km (0.106 R)
• M21: 32,727,377 km (0.105 R)
• M22: 35,502,567 km (0.036 R)
• M23: 36,251,454 km (0.103 R)
• M24: 39,752,642 km (0.109 R)
• M25: 40,560,171 km (0.077 R)
• M26: 41,653,882 km (0.079 R)
• M27: 42,626,866 km (0.087 R)
• M28: 43,189,653 km (0.058 R)
• M29: 43,757,377 km (0.073 R)
• M30: 44,762,824 km (0.118 R)
• M31: 49,555,791 km (0.113 R)
• M32: 50,805,232 km (0.11 R)
• M33: 53,204,632 km (0.108 R)
• M34: 54,020,838 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.1

Radius: 6.1

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.73 AU - 7.85 AU

Year: 12000 Days

Day: 17.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,089,421 km

• M1: 78,090 km (0.063 R)
• M2: 724,652 km (0.051 R)
• M3: 978,669 km (0.101 R)
• M4: 1,885,083 km (0.042 R)
• M5: 2,498,284 km (0.08 R)
• M6: 2,712,957 km (0.109 R)
• M7: 3,012,153 km (0.063 R)
• M8: 4,088,659 km (0.076 R)
• M9: 5,134,049 km (0.074 R)
• M10: 6,811,490 km (0.077 R)
• M11: 10,851,082 km (0.082 R)
• M12: 14,549,291 km (0.1 R)
• M13: 17,117,587 km (0.083 R)
• M14: 20,235,506 km (0.074 R)
• M15: 20,968,984 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.2

Radius: 3.9

Gravity: 14.54 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.86 AU - 8.8 AU

Year: 13460 Days

Day: 16.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,089,421 km

• M1: 48,470 km (0.076 R)
• M2: 173,085 km (0.093 R)
• M3: 340,784 km (0.092 R)
• M4: 480,658 km (0.042 R)
• M5: 728,242 km (0.12 R)
• M6: 995,125 km (0.101 R)
• M7: 1,487,452 km (0.085 R)
• M8: 2,211,057 km (0.105 R)
• M9: 3,367,149 km (0.113 R)
• M10: 3,529,612 km (0.057 R)
• M11: 4,673,288 km (0.112 R)
• M12: 5,328,826 km (0.078 R)
• M13: 5,842,545 km (0.11 R)
• M14: 6,601,904 km (0.12 R)
• M15: 8,482,947 km (0.101 R)
• M16: 8,827,770 km (0.093 R)
• M17: 9,824,092 km (0.071 R)
• M18: 13,031,471 km (0.091 R)
• M19: 14,019,265 km (0.115 R)
• M20: 16,671,935 km (0.116 R)
• M21: 23,026,254 km (0.104 R)
• M22: 23,611,780 km (0.088 R)
• M23: 26,234,081 km (0.103 R)
• M24: 30,722,316 km (0.066 R)
• M25: 32,048,352 km (0.095 R)
• M26: 38,782,500 km (0.085 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 554 - 14,527 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit