🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.5

Radius: 9.5

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.8 AU - 1.2 AU

Year: 678 Days

Day: 8.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,496,556 km

• M1: 118,482 km (0.06 R)
• M2: 533,765 km (0.051 R)
• M3: 906,114 km (0.074 R)
• M4: 1,598,304 km (0.079 R)
• M5: 2,114,716 km (0.116 R)
• M6: 3,547,115 km (0.094 R)
• M7: 4,367,959 km (0.074 R)
• M8: 5,293,221 km (0.075 R)
• M9: 5,647,170 km (0.069 R)
• M10: 7,181,446 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.4

Radius: 8.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.21 AU - 1.77 AU

Year: 1234 Days

Day: 9.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,496,556 km

• M1: 100,829 km (0.067 R)
• M2: 458,667 km (0.117 R)
• M3: 799,750 km (0.115 R)
• M4: 1,322,744 km (0.114 R)
• M5: 1,737,430 km (0.103 R)
• M6: 2,459,838 km (0.088 R)
• M7: 2,852,831 km (0.087 R)
• M8: 3,155,169 km (0.12 R)
• M9: 4,193,079 km (0.067 R)
• M10: 4,501,550 km (0.119 R)
• M11: 5,237,421 km (0.094 R)
• M12: 6,509,751 km (0.111 R)
• M13: 7,286,912 km (0.083 R)
• M14: 7,976,558 km (0.071 R)
• M15: 8,425,950 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.1

Radius: 14.6

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.47 AU - 1.87 AU

Year: 1464 Days

Day: 10.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,496,556 km

• M1: 181,612 km (0.072 R)
• M2: 931,995 km (0.1 R)
• M3: 1,727,855 km (0.085 R)
• M4: 2,774,741 km (0.093 R)
• M5: 4,722,506 km (0.056 R)
• M6: 5,255,822 km (0.112 R)
• M7: 6,121,096 km (0.119 R)
• M8: 7,126,543 km (0.028 R)
• M9: 7,856,132 km (0.101 R)
• M10: 8,662,016 km (0.055 R)
• M11: 10,166,970 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.8

Radius: 12.7

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.5 AU - 1.9 AU

Year: 1503 Days

Day: 11.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,496,556 km

• M1: 158,424 km (0.11 R)
• M2: 566,976 km (0.087 R)
• M3: 1,094,308 km (0.112 R)
• M4: 1,521,410 km (0.085 R)
• M5: 1,958,535 km (0.059 R)
• M6: 2,480,183 km (0.11 R)
• M7: 3,325,411 km (0.077 R)
• M8: 3,726,633 km (0.113 R)
• M9: 4,125,909 km (0.117 R)
• M10: 4,798,053 km (0.066 R)
• M11: 5,354,257 km (0.026 R)
• M12: 6,246,459 km (0.055 R)
• M13: 6,692,261 km (0.089 R)
• M14: 7,388,340 km (0.107 R)
• M15: 7,995,707 km (0.063 R)
• M16: 8,983,651 km (0.052 R)
• M17: 9,461,766 km (0.049 R)
• M18: 9,956,785 km (0.051 R)
• M19: 11,969,026 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.7

Radius: 13.2

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.82 AU - 5.48 AU

Year: 6801 Days

Day: 7.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,496,556 km

• M1: 165,455 km (0.104 R)
• M2: 848,519 km (0.089 R)
• M3: 1,472,342 km (0.065 R)
• M4: 2,683,187 km (0.075 R)
• M5: 4,014,309 km (0.08 R)
• M6: 4,684,508 km (0.054 R)
• M7: 5,222,462 km (0.078 R)
• M8: 6,163,582 km (0.116 R)
• M9: 6,630,178 km (0.076 R)
• M10: 8,487,734 km (0.048 R)
• M11: 9,103,629 km (0.103 R)
• M12: 10,303,553 km (0.04 R)
• M13: 12,274,804 km (0.095 R)
• M14: 14,537,173 km (0.088 R)
• M15: 18,106,728 km (0.098 R)
• M16: 23,605,646 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791.8

Radius: 4

Gravity: 49.49 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.08 AU - 9.56 AU

Year: 17766 Days

Day: 22.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 110.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,496,556 km

• M1: 49,816 km (0.069 R)
• M2: 479,760 km (0.111 R)
• M3: 1,550,133 km (0.101 R)
• M4: 2,466,121 km (0.076 R)
• M5: 3,265,871 km (0.118 R)
• M6: 4,629,007 km (0.114 R)
• M7: 6,769,453 km (0.096 R)
• M8: 8,619,530 km (0.101 R)
• M9: 9,102,432 km (0.043 R)
• M10: 11,596,977 km (0.05 R)
• M11: 12,118,774 km (0.096 R)
• M12: 13,069,468 km (0.108 R)
• M13: 19,837,276 km (0.103 R)
• M14: 20,207,680 km (0.085 R)
• M15: 35,857,712 km (0.055 R)
• M16: 38,374,547 km (0.074 R)
• M17: 41,006,721 km (0.117 R)
• M18: 43,135,200 km (0.084 R)
• M19: 50,302,434 km (0.073 R)
• M20: 53,807,213 km (0.074 R)
• M21: 68,397,642 km (0.061 R)
• M22: 72,909,813 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.5

Radius: 3.6

Gravity: 9.07 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.59 AU - 10.05 AU

Year: 20872 Days

Day: 19.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,496,556 km

• M1: 57,894 km (0.083 R)
• M2: 1,339,200 km (0.055 R)
• M3: 1,495,530 km (0.092 R)
• M4: 1,678,339 km (0.065 R)
• M5: 1,860,250 km (0.105 R)
• M6: 2,952,763 km (0.048 R)
• M7: 5,156,788 km (0.09 R)
• M8: 6,084,145 km (0.117 R)
• M9: 10,961,634 km (0.068 R)
• M10: 11,813,295 km (0.113 R)
• M11: 13,172,093 km (0.085 R)
• M12: 19,497,988 km (0.094 R)
• M13: 19,651,027 km (0.082 R)
• M14: 20,192,721 km (0.079 R)
• M15: 23,827,799 km (0.104 R)
• M16: 24,800,185 km (0.109 R)
• M17: 25,798,751 km (0.096 R)
• M18: 29,756,961 km (0.115 R)
• M19: 32,038,927 km (0.099 R)
• M20: 34,995,579 km (0.1 R)
• M21: 38,368,114 km (0.071 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 19,135 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit