🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.8

Radius: 13.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.66 AU - 0.74 AU

Year: 397 Days

Day: 6.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,938,798 km

• M1: 166,652 km (0.033 R)
• M2: 597,045 km (0.091 R)
• M3: 1,040,453 km (0.069 R)
• M4: 1,463,815 km (0.081 R)
• M5: 3,718,704 km (0.07 R)
• M6: 4,189,788 km (0.107 R)
• M7: 4,816,603 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.9

Radius: 9

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.58 AU - 0.84 AU

Year: 406 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 51.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,938,798 km

• M1: 111,899 km (0.097 R)
• M2: 396,883 km (0.086 R)
• M3: 808,576 km (0.104 R)
• M4: 1,411,755 km (0.093 R)
• M5: 2,146,879 km (0.079 R)
• M6: 3,105,652 km (0.057 R)
• M7: 3,433,271 km (0.104 R)
• M8: 3,809,809 km (0.105 R)
• M9: 4,397,729 km (0.084 R)
• M10: 4,691,240 km (0.115 R)
• M11: 5,823,247 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.6

Radius: 14.2

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.65 AU - 1.07 AU

Year: 541 Days

Day: 9.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,938,798 km

• M1: 176,675 km (0.111 R)
• M2: 624,571 km (0.109 R)
• M3: 1,078,301 km (0.114 R)
• M4: 1,945,520 km (0.079 R)
• M5: 2,766,813 km (0.094 R)
• M6: 3,332,293 km (0.105 R)
• M7: 4,513,218 km (0.069 R)
• M8: 5,069,872 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355

Radius: 11.6

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.17 AU - 1.23 AU

Year: 892 Days

Day: 5.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,938,798 km

• M1: 144,212 km (0.06 R)
• M2: 544,985 km (0.099 R)
• M3: 931,995 km (0.11 R)
• M4: 1,371,513 km (0.105 R)
• M5: 1,797,418 km (0.102 R)
• M6: 3,125,848 km (0.11 R)
• M7: 4,121,571 km (0.118 R)
• M8: 4,709,491 km (0.092 R)
• M9: 5,714,339 km (0.099 R)
• M10: 6,307,196 km (0.08 R)
• M11: 7,415,866 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.5

Radius: 11.7

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.47 AU - 2.13 AU

Year: 1638 Days

Day: 13.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,938,798 km

• M1: 178,470 km (0.108 R)
• M2: 664,963 km (0.112 R)
• M3: 1,946,867 km (0.055 R)
• M4: 2,314,578 km (0.082 R)
• M5: 3,057,780 km (0.107 R)
• M6: 3,796,046 km (0.114 R)
• M7: 4,954,532 km (0.09 R)
• M8: 5,627,124 km (0.081 R)
• M9: 6,409,072 km (0.09 R)
• M10: 7,075,082 km (0.042 R)
• M11: 7,590,446 km (0.025 R)
• M12: 9,320,695 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.7

Radius: 11.5

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.41 AU - 5.05 AU

Year: 6977 Days

Day: 11.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,938,798 km

• M1: 143,165 km (0.079 R)
• M2: 519,254 km (0.075 R)
• M3: 2,112,472 km (0.109 R)
• M4: 2,482,577 km (0.068 R)
• M5: 2,911,923 km (0.08 R)
• M6: 3,514,054 km (0.09 R)
• M7: 4,789,226 km (0.068 R)
• M8: 6,324,549 km (0.101 R)
• M9: 7,103,356 km (0.038 R)
• M10: 11,380,359 km (0.106 R)
• M11: 14,125,031 km (0.067 R)
• M12: 17,178,473 km (0.038 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.1

Radius: 7.1

Gravity: 18.71 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.54 AU - 9.36 AU

Year: 16660 Days

Day: 18.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,938,798 km

• M1: 91,554 km (0.088 R)
• M2: 330,910 km (0.1 R)
• M3: 643,271 km (0.04 R)
• M4: 918,381 km (0.068 R)
• M5: 1,257,819 km (0.119 R)
• M6: 1,529,040 km (0.09 R)
• M7: 2,191,160 km (0.095 R)
• M8: 2,827,400 km (0.113 R)
• M9: 4,950,942 km (0.081 R)
• M10: 5,361,139 km (0.089 R)
• M11: 6,334,871 km (0.085 R)
• M12: 7,662,702 km (0.11 R)
• M13: 9,332,813 km (0.04 R)
• M14: 10,796,030 km (0.099 R)
• M15: 12,406,151 km (0.098 R)
• M16: 15,461,090 km (0.085 R)
• M17: 16,175,270 km (0.107 R)
• M18: 16,663,557 km (0.041 R)
• M19: 17,329,866 km (0.104 R)
• M20: 20,266,921 km (0.062 R)
• M21: 25,872,204 km (0.057 R)
• M22: 35,745,514 km (0.049 R)
• M23: 40,310,493 km (0.072 R)
• M24: 41,057,285 km (0.049 R)
• M25: 42,270,973 km (0.102 R)
• M26: 45,570,803 km (0.066 R)
• M27: 48,700,839 km (0.076 R)
• M28: 50,576,946 km (0.102 R)
• M29: 53,391,031 km (0.087 R)
• M30: 58,373,538 km (0.072 R)
• M31: 61,862,011 km (0.09 R)
• M32: 62,655,627 km (0.076 R)
• M33: 66,933,977 km (0.083 R)
• M34: 67,980,564 km (0.109 R)
• M35: 72,057,405 km (0.114 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: 413 - 18,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit