🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.5

Radius: 14.9

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.43 AU - 0.59 AU

Year: 247 Days

Day: 9.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,802,758 km

• M1: 185,352 km (0.119 R)
• M2: 669,899 km (0.087 R)
• M3: 1,211,892 km (0.047 R)
• M4: 1,790,986 km (0.076 R)
• M5: 2,538,077 km (0.032 R)
• M6: 3,077,827 km (0.068 R)
• M7: 3,551,453 km (0.097 R)
• M8: 4,050,512 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.4

Radius: 13

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.72 AU - 0.84 AU

Year: 467 Days

Day: 13.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,802,758 km

• M1: 162,014 km (0.111 R)
• M2: 600,486 km (0.11 R)
• M3: 1,186,162 km (0.118 R)
• M4: 1,686,267 km (0.074 R)
• M5: 2,259,377 km (0.103 R)
• M6: 2,734,350 km (0.08 R)
• M7: 3,408,288 km (0.082 R)
• M8: 4,164,954 km (0.103 R)
• M9: 4,857,144 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.5

Radius: 14.4

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.93 AU - 1.51 AU

Year: 914 Days

Day: 6.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,802,758 km

• M1: 179,069 km (0.085 R)
• M2: 1,225,955 km (0.116 R)
• M3: 2,092,425 km (0.093 R)
• M4: 3,506,125 km (0.117 R)
• M5: 4,871,056 km (0.104 R)
• M6: 5,666,019 km (0.078 R)
• M7: 6,728,314 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.7

Radius: 12.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.7 AU - 2.32 AU

Year: 1933 Days

Day: 9 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,802,758 km

• M1: 153,039 km (0.108 R)
• M2: 580,141 km (0.094 R)
• M3: 1,033,572 km (0.068 R)
• M4: 1,572,124 km (0.107 R)
• M5: 2,024,508 km (0.057 R)
• M6: 2,538,825 km (0.065 R)
• M7: 3,349,945 km (0.045 R)
• M8: 3,766,575 km (0.088 R)
• M9: 4,163,907 km (0.115 R)
• M10: 5,023,347 km (0.076 R)
• M11: 5,838,356 km (0.042 R)
• M12: 6,445,275 km (0.101 R)
• M13: 6,864,747 km (0.101 R)
• M14: 8,091,898 km (0.094 R)
• M15: 8,610,105 km (0.084 R)
• M16: 9,211,938 km (0.077 R)
• M17: 9,681,376 km (0.103 R)
• M18: 10,771,047 km (0.089 R)
• M19: 11,186,929 km (0.114 R)
• M20: 12,766,084 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.5

Radius: 12.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.96 AU - 3.06 AU

Year: 3542 Days

Day: 6.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,802,758 km

• M1: 151,842 km (0.045 R)
• M2: 690,095 km (0.108 R)
• M3: 1,114,504 km (0.036 R)
• M4: 1,662,182 km (0.092 R)
• M5: 2,217,489 km (0.092 R)
• M6: 4,304,978 km (0.035 R)
• M7: 5,311,921 km (0.108 R)
• M8: 7,093,183 km (0.109 R)
• M9: 9,880,939 km (0.117 R)
• M10: 11,202,188 km (0.074 R)
• M11: 11,927,289 km (0.072 R)
• M12: 12,592,850 km (0.104 R)
• M13: 15,350,387 km (0.109 R)
• M14: 16,031,506 km (0.114 R)
• M15: 19,319,368 km (0.096 R)
• M16: 20,613,091 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.2

Radius: 13.5

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.01 AU - 3.89 AU

Year: 4346 Days

Day: 9.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,802,758 km

• M1: 167,849 km (0.105 R)
• M2: 632,949 km (0.113 R)
• M3: 1,328,878 km (0.1 R)
• M4: 1,783,955 km (0.102 R)
• M5: 2,707,422 km (0.108 R)
• M6: 3,197,206 km (0.071 R)
• M7: 3,888,049 km (0.113 R)
• M8: 5,059,998 km (0.087 R)
• M9: 5,675,145 km (0.073 R)
• M10: 6,311,085 km (0.052 R)
• M11: 7,117,867 km (0.062 R)
• M12: 10,311,632 km (0.094 R)
• M13: 11,049,598 km (0.104 R)
• M14: 14,763,365 km (0.098 R)
• M15: 15,227,567 km (0.038 R)
• M16: 16,678,816 km (0.082 R)
• M17: 19,730,762 km (0.12 R)
• M18: 20,740,249 km (0.059 R)
• M19: 21,388,456 km (0.069 R)
• M20: 21,916,686 km (0.048 R)
• M21: 22,521,511 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.7

Radius: 14.7

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.98 AU - 5.74 AU

Year: 7267 Days

Day: 14.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,802,758 km

• M1: 193,729 km (0.101 R)
• M2: 779,704 km (0.077 R)
• M3: 1,444,667 km (0.071 R)
• M4: 5,635,950 km (0.101 R)
• M5: 6,510,799 km (0.096 R)
• M6: 7,252,355 km (0.095 R)
• M7: 8,168,493 km (0.049 R)
• M8: 9,730,593 km (0.104 R)
• M9: 14,177,540 km (0.098 R)
• M10: 14,644,584 km (0.06 R)
• M11: 18,276,821 km (0.109 R)
• M12: 18,830,782 km (0.114 R)
• M13: 20,338,130 km (0.095 R)
• M14: 23,349,086 km (0.064 R)
• M15: 25,087,862 km (0.058 R)
• M16: 34,462,562 km (0.067 R)
• M17: 35,522,762 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.6

Radius: 4.2

Gravity: 32.97 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.46 AU - 8 AU

Year: 11842 Days

Day: 17.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,802,758 km

• M1: 52,210 km (0.081 R)
• M2: 528,978 km (0.113 R)
• M3: 826,379 km (0.077 R)
• M4: 2,046,948 km (0.105 R)
• M5: 2,581,461 km (0.108 R)
• M6: 2,881,255 km (0.071 R)
• M7: 3,085,905 km (0.104 R)
• M8: 3,549,957 km (0.078 R)
• M9: 6,627,186 km (0.086 R)
• M10: 7,312,344 km (0.086 R)
• M11: 10,905,086 km (0.096 R)
• M12: 15,453,161 km (0.082 R)
• M13: 16,942,707 km (0.11 R)
• M14: 23,493,448 km (0.104 R)
• M15: 27,323,901 km (0.06 R)
• M16: 31,772,643 km (0.059 R)
• M17: 36,680,650 km (0.102 R)
• M18: 40,349,238 km (0.109 R)
• M19: 42,745,198 km (0.116 R)
• M20: 44,953,113 km (0.097 R)
• M21: 45,093,585 km (0.12 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 151 - 10,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit