🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.3

Radius: 8.9

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.54 AU - 0.66 AU

Year: 321 Days

Day: 6.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,547,632 km

• M1: 110,702 km (0.087 R)
• M2: 409,599 km (0.084 R)
• M3: 692,040 km (0.062 R)
• M4: 1,083,537 km (0.105 R)
• M5: 1,646,025 km (0.118 R)
• M6: 2,020,170 km (0.079 R)
• M7: 2,554,533 km (0.107 R)
• M8: 3,049,403 km (0.097 R)
• M9: 3,431,775 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.6

Radius: 11.1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.19 AU - 1.23 AU

Year: 919 Days

Day: 14.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,547,632 km

• M1: 139,724 km (0.108 R)
• M2: 616,343 km (0.106 R)
• M3: 1,006,046 km (0.059 R)
• M4: 1,525,150 km (0.102 R)
• M5: 2,150,469 km (0.073 R)
• M6: 2,504,867 km (0.111 R)
• M7: 3,209,772 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.8

Radius: 13.1

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.86 AU - 2.26 AU

Year: 2041 Days

Day: 13.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,547,632 km

• M1: 163,959 km (0.079 R)
• M2: 828,473 km (0.065 R)
• M3: 1,311,525 km (0.076 R)
• M4: 1,954,197 km (0.095 R)
• M5: 3,075,583 km (0.074 R)
• M6: 3,491,764 km (0.11 R)
• M7: 4,014,010 km (0.054 R)
• M8: 7,168,580 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.1

Radius: 9.9

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.96 AU - 2.7 AU

Year: 2455 Days

Day: 12.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,547,632 km

• M1: 123,119 km (0.09 R)
• M2: 678,576 km (0.072 R)
• M3: 1,279,511 km (0.1 R)
• M4: 1,749,846 km (0.107 R)
• M5: 2,219,135 km (0.058 R)
• M6: 2,727,768 km (0.072 R)
• M7: 3,087,850 km (0.104 R)
• M8: 4,054,102 km (0.111 R)
• M9: 4,545,681 km (0.077 R)
• M10: 4,859,537 km (0.072 R)
• M11: 5,414,845 km (0.109 R)
• M12: 8,130,195 km (0.12 R)
• M13: 9,109,014 km (0.034 R)
• M14: 12,035,747 km (0.113 R)
• M15: 12,886,211 km (0.049 R)
• M16: 15,397,062 km (0.079 R)
• M17: 15,964,337 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.2

Radius: 9.7

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.08 AU - 3.14 AU

Year: 3786 Days

Day: 12.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,547,632 km

• M1: 120,576 km (0.102 R)
• M2: 424,110 km (0.101 R)
• M3: 879,336 km (0.118 R)
• M4: 1,638,396 km (0.115 R)
• M5: 2,311,885 km (0.083 R)
• M6: 3,177,758 km (0.088 R)
• M7: 4,053,055 km (0.067 R)
• M8: 7,908,940 km (0.03 R)
• M9: 9,694,391 km (0.102 R)
• M10: 13,086,523 km (0.093 R)
• M11: 13,416,535 km (0.093 R)
• M12: 13,752,083 km (0.07 R)
• M13: 14,894,413 km (0.118 R)
• M14: 15,358,166 km (0.091 R)
• M15: 18,463,668 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.1

Radius: 11.4

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.48 AU - 3.48 AU

Year: 4481 Days

Day: 7.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,547,632 km

• M1: 220,657 km (0.109 R)
• M2: 674,537 km (0.078 R)
• M3: 1,193,492 km (0.05 R)
• M4: 2,261,022 km (0.105 R)
• M5: 2,878,861 km (0.037 R)
• M6: 4,167,348 km (0.04 R)
• M7: 5,539,310 km (0.081 R)
• M8: 7,605,406 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.4

Radius: 8.9

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.03 AU - 4.89 AU

Year: 5439 Days

Day: 13.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,547,632 km

• M1: 111,002 km (0.07 R)
• M2: 468,989 km (0.091 R)
• M3: 812,167 km (0.081 R)
• M4: 1,198,279 km (0.068 R)
• M5: 1,796,670 km (0.095 R)
• M6: 2,391,472 km (0.104 R)
• M7: 3,467,679 km (0.048 R)
• M8: 4,324,874 km (0.117 R)
• M9: 5,491,887 km (0.099 R)
• M10: 5,879,795 km (0.025 R)
• M11: 6,856,370 km (0.104 R)
• M12: 8,067,963 km (0.107 R)
• M13: 8,467,987 km (0.118 R)
• M14: 9,235,724 km (0.095 R)
• M15: 11,399,059 km (0.106 R)
• M16: 14,995,691 km (0.081 R)
• M17: 16,065,764 km (0.116 R)
• M18: 16,699,610 km (0.031 R)
• M19: 17,737,371 km (0.112 R)
• M20: 20,182,698 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.7

Radius: 6.8

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 8.47 AU - 10.87 AU

Year: 20756 Days

Day: 17.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,547,632 km

• M1: 84,972 km (0.088 R)
• M2: 2,083,898 km (0.073 R)
• M3: 2,591,783 km (0.093 R)
• M4: 3,358,622 km (0.078 R)
• M5: 4,267,578 km (0.036 R)
• M6: 8,448,390 km (0.1 R)
• M7: 11,550,751 km (0.1 R)
• M8: 12,226,335 km (0.084 R)
• M9: 18,197,085 km (0.109 R)
• M10: 23,945,982 km (0.12 R)
• M11: 30,451,095 km (0.06 R)
• M12: 31,618,856 km (0.061 R)
• M13: 33,919,522 km (0.11 R)
• M14: 37,377,327 km (0.062 R)
• M15: 44,092,028 km (0.116 R)
• M16: 48,044,254 km (0.086 R)
• M17: 52,061,256 km (0.036 R)
• M18: 52,392,017 km (0.07 R)
• M19: 52,724,124 km (0.046 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.3

Radius: 4.6

Gravity: 22.46 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 8.01 AU - 12.87 AU

Year: 23284 Days

Day: 22.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,547,632 km

• M1: 57,146 km (0.083 R)
• M2: 217,067 km (0.118 R)
• M3: 560,094 km (0.074 R)
• M4: 1,692,401 km (0.111 R)
• M5: 6,146,528 km (0.03 R)
• M6: 7,595,233 km (0.057 R)
• M7: 7,840,424 km (0.105 R)
• M8: 9,312,767 km (0.054 R)
• M9: 9,480,765 km (0.081 R)
• M10: 13,069,020 km (0.085 R)
• M11: 14,071,325 km (0.095 R)
• M12: 14,516,080 km (0.118 R)
• M13: 16,147,145 km (0.07 R)
• M14: 25,937,279 km (0.109 R)
• M15: 31,608,684 km (0.12 R)
• M16: 32,243,128 km (0.078 R)
• M17: 36,228,864 km (0.101 R)
• M18: 41,732,869 km (0.106 R)
• M19: 51,167,259 km (0.056 R)
• M20: 61,533,643 km (0.052 R)
• M21: 68,675,296 km (0.113 R)
• M22: 73,657,354 km (0.094 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: 434 - 17,679 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit