🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.5

Radius: 11.6

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.53 AU - 0.75 AU

Year: 353 Days

Day: 5.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,651,957 km

• M1: 144,212 km (0.088 R)
• M2: 704,756 km (0.094 R)
• M3: 1,124,378 km (0.067 R)
• M4: 1,516,773 km (0.113 R)
• M5: 1,878,650 km (0.081 R)
• M6: 2,726,571 km (0.113 R)
• M7: 4,391,445 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853

Radius: 14

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.04 AU - 1.2 AU

Year: 818 Days

Day: 13.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,651,957 km

• M1: 174,132 km (0.093 R)
• M2: 1,303,895 km (0.083 R)
• M3: 1,859,352 km (0.099 R)
• M4: 2,340,608 km (0.071 R)
• M5: 2,844,005 km (0.086 R)
• M6: 3,433,870 km (0.067 R)
• M7: 4,634,243 km (0.101 R)
• M8: 5,097,697 km (0.12 R)
• M9: 5,973,892 km (0.076 R)
• M10: 6,656,357 km (0.045 R)
• M11: 7,343,011 km (0.092 R)
• M12: 8,152,486 km (0.046 R)
• M13: 8,592,303 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.9

Radius: 11.4

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.38 AU - 1.9 AU

Year: 1450 Days

Day: 12.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,651,957 km

• M1: 141,819 km (0.104 R)
• M2: 586,274 km (0.071 R)
• M3: 1,119,740 km (0.087 R)
• M4: 1,578,407 km (0.039 R)
• M5: 2,230,055 km (0.049 R)
• M6: 2,683,935 km (0.115 R)
• M7: 3,229,070 km (0.07 R)
• M8: 4,283,436 km (0.064 R)
• M9: 5,030,677 km (0.09 R)
• M10: 6,612,375 km (0.103 R)
• M11: 9,556,761 km (0.104 R)
• M12: 10,427,869 km (0.108 R)
• M13: 12,552,309 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.8

Radius: 11

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.88 AU - 1.98 AU

Year: 1851 Days

Day: 10 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,651,957 km

• M1: 137,032 km (0.1 R)
• M2: 649,404 km (0.114 R)
• M3: 1,488,200 km (0.073 R)
• M4: 2,074,474 km (0.116 R)
• M5: 2,510,252 km (0.109 R)
• M6: 3,181,348 km (0.03 R)
• M7: 4,397,878 km (0.069 R)
• M8: 5,033,968 km (0.094 R)
• M9: 6,676,403 km (0.059 R)
• M10: 7,459,249 km (0.074 R)
• M11: 8,554,455 km (0.104 R)
• M12: 9,546,439 km (0.029 R)
• M13: 9,999,421 km (0.099 R)
• M14: 15,878,617 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914

Radius: 14

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.24 AU - 2.3 AU

Year: 2361 Days

Day: 6 Hours

Environment

Temp: -202 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,651,957 km

• M1: 174,282 km (0.119 R)
• M2: 781,050 km (0.051 R)
• M3: 1,433,896 km (0.07 R)
• M4: 1,923,081 km (0.089 R)
• M5: 2,496,340 km (0.06 R)
• M6: 3,132,280 km (0.056 R)
• M7: 3,590,199 km (0.057 R)
• M8: 4,278,050 km (0.1 R)
• M9: 5,146,915 km (0.103 R)
• M10: 5,738,126 km (0.1 R)
• M11: 7,326,107 km (0.071 R)
• M12: 7,979,700 km (0.108 R)
• M13: 8,503,442 km (0.103 R)
• M14: 9,547,934 km (0.033 R)
• M15: 10,832,980 km (0.109 R)
• M16: 12,017,795 km (0.039 R)
• M17: 12,663,759 km (0.103 R)
• M18: 13,423,567 km (0.092 R)
• M19: 14,887,531 km (0.115 R)
• M20: 15,532,149 km (0.083 R)
• M21: 19,799,129 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.1

Radius: 10.4

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.33 AU - 5.25 AU

Year: 6133 Days

Day: 6.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,651,957 km

• M1: 131,497 km (0.109 R)
• M2: 568,622 km (0.093 R)
• M3: 895,642 km (0.107 R)
• M4: 1,344,586 km (0.044 R)
• M5: 1,902,586 km (0.114 R)
• M6: 2,790,748 km (0.094 R)
• M7: 3,309,703 km (0.117 R)
• M8: 3,956,265 km (0.119 R)
• M9: 4,471,331 km (0.073 R)
• M10: 5,132,553 km (0.106 R)
• M11: 5,581,497 km (0.113 R)
• M12: 6,680,592 km (0.109 R)
• M13: 9,771,583 km (0.083 R)
• M14: 12,126,254 km (0.118 R)
• M15: 13,757,768 km (0.115 R)
• M16: 14,730,902 km (0.064 R)
• M17: 22,308,782 km (0.118 R)
• M18: 22,867,381 km (0.089 R)
• M19: 23,578,569 km (0.117 R)
• M20: 23,939,698 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103

Radius: 5.6

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 5.12 AU - 6.96 AU

Year: 10246 Days

Day: 20.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,651,957 km

• M1: 69,713 km (0.114 R)
• M2: 282,590 km (0.095 R)
• M3: 972,985 km (0.063 R)
• M4: 1,295,218 km (0.114 R)
• M5: 1,863,391 km (0.119 R)
• M6: 2,891,278 km (0.082 R)
• M7: 3,702,398 km (0.101 R)
• M8: 4,655,635 km (0.108 R)
• M9: 8,410,243 km (0.116 R)
• M10: 8,705,399 km (0.108 R)
• M11: 8,931,442 km (0.112 R)
• M12: 9,238,716 km (0.093 R)
• M13: 10,203,173 km (0.09 R)
• M14: 10,539,020 km (0.084 R)
• M15: 13,447,053 km (0.104 R)
• M16: 13,799,955 km (0.102 R)
• M17: 14,842,353 km (0.064 R)
• M18: 16,675,375 km (0.106 R)
• M19: 19,796,735 km (0.104 R)
• M20: 20,918,121 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703

Radius: 3

Gravity: 78.11 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.99 AU - 9.87 AU

Year: 18420 Days

Day: 15.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,651,957 km

• M1: 71,807 km (0.114 R)
• M2: 446,849 km (0.105 R)
• M3: 600,935 km (0.104 R)
• M4: 864,376 km (0.101 R)
• M5: 967,749 km (0.104 R)
• M6: 1,171,950 km (0.116 R)
• M7: 2,416,754 km (0.104 R)
• M8: 4,377,982 km (0.103 R)
• M9: 6,610,281 km (0.108 R)
• M10: 11,987,277 km (0.081 R)
• M11: 17,259,854 km (0.087 R)
• M12: 20,442,848 km (0.097 R)
• M13: 21,779,505 km (0.078 R)
• M14: 22,171,751 km (0.114 R)
• M15: 35,975,296 km (0.072 R)
• M16: 51,401,080 km (0.113 R)
• M17: 52,797,128 km (0.11 R)
• M18: 53,860,619 km (0.079 R)
• M19: 56,397,350 km (0.06 R)
• M20: 56,766,109 km (0.047 R)
• M21: 60,157,642 km (0.088 R)
• M22: 65,494,247 km (0.111 R)
• M23: 66,515,851 km (0.101 R)
• M24: 72,217,175 km (0.117 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 10,555 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit