🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.42 AU - 0.7 AU

Year: 266 Days

Day: 38.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.4

Radius: 14.3

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.83 AU - 1.27 AU

Year: 684 Days

Day: 9.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,173,685 km

• M1: 178,021 km (0.052 R)
• M2: 637,885 km (0.111 R)
• M3: 1,146,219 km (0.036 R)
• M4: 1,666,221 km (0.032 R)
• M5: 2,699,643 km (0.053 R)
• M6: 3,166,239 km (0.117 R)
• M7: 3,743,537 km (0.057 R)
• M8: 4,834,854 km (0.052 R)
• M9: 5,308,929 km (0.06 R)
• M10: 5,970,152 km (0.095 R)
• M11: 6,517,231 km (0.114 R)
• M12: 7,009,558 km (0.099 R)
• M13: 7,526,867 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.8

Radius: 14.4

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.16 AU - 1.28 AU

Year: 857 Days

Day: 5.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,173,685 km

• M1: 179,368 km (0.093 R)
• M2: 639,680 km (0.089 R)
• M3: 1,141,133 km (0.038 R)
• M4: 1,971,999 km (0.079 R)
• M5: 2,610,184 km (0.079 R)
• M6: 4,644,565 km (0.058 R)
• M7: 5,645,973 km (0.119 R)
• M8: 6,877,014 km (0.072 R)
• M9: 8,887,161 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.4

Radius: 9.8

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.24 AU - 1.36 AU

Year: 942 Days

Day: 12.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,173,685 km

• M1: 121,922 km (0.104 R)
• M2: 600,037 km (0.11 R)
• M3: 929,900 km (0.108 R)
• M4: 1,336,507 km (0.101 R)
• M5: 1,728,454 km (0.052 R)
• M6: 2,154,808 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.3

Radius: 14.7

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.59 AU - 1.87 AU

Year: 1447 Days

Day: 11.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,173,685 km

• M1: 182,809 km (0.076 R)
• M2: 664,663 km (0.113 R)
• M3: 1,893,610 km (0.087 R)
• M4: 3,332,293 km (0.06 R)
• M5: 4,077,888 km (0.119 R)
• M6: 4,600,583 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.1

Radius: 9

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.6 AU - 2.14 AU

Year: 1626 Days

Day: 10.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,173,685 km

• M1: 111,899 km (0.095 R)
• M2: 876,644 km (0.078 R)
• M3: 1,163,423 km (0.107 R)
• M4: 1,532,630 km (0.06 R)
• M5: 1,859,950 km (0.104 R)
• M6: 2,382,496 km (0.118 R)
• M7: 2,783,119 km (0.114 R)
• M8: 3,089,944 km (0.054 R)
• M9: 3,877,577 km (0.113 R)
• M10: 4,280,743 km (0.106 R)
• M11: 5,729,598 km (0.087 R)
• M12: 7,452,966 km (0.087 R)
• M13: 8,584,225 km (0.049 R)
• M14: 9,561,997 km (0.059 R)
• M15: 9,859,397 km (0.119 R)
• M16: 10,162,931 km (0.102 R)
• M17: 11,329,795 km (0.066 R)
• M18: 12,662,413 km (0.11 R)
• M19: 13,551,772 km (0.08 R)
• M20: 14,309,934 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.3

Radius: 11.6

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 3.2 AU - 5.12 AU

Year: 5395 Days

Day: 10.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,173,685 km

• M1: 144,362 km (0.068 R)
• M2: 886,367 km (0.089 R)
• M3: 1,320,949 km (0.085 R)
• M4: 1,693,298 km (0.111 R)
• M5: 2,090,780 km (0.08 R)
• M6: 2,694,557 km (0.104 R)
• M7: 3,769,717 km (0.102 R)
• M8: 5,521,508 km (0.076 R)
• M9: 6,146,079 km (0.108 R)
• M10: 7,686,787 km (0.066 R)
• M11: 10,320,907 km (0.063 R)
• M12: 11,917,266 km (0.12 R)
• M13: 13,286,684 km (0.082 R)
• M14: 14,641,293 km (0.117 R)
• M15: 15,352,182 km (0.118 R)
• M16: 16,272,957 km (0.08 R)
• M17: 17,557,554 km (0.062 R)
• M18: 19,609,588 km (0.081 R)
• M19: 20,327,807 km (0.098 R)
• M20: 20,840,928 km (0.06 R)
• M21: 21,893,050 km (0.039 R)
• M22: 22,277,367 km (0.067 R)
• M23: 26,632,161 km (0.087 R)
• M24: 28,595,633 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.6

Radius: 6.7

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 6.77 AU - 10.41 AU

Year: 16007 Days

Day: 22.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,173,685 km

• M1: 83,326 km (0.115 R)
• M2: 308,321 km (0.071 R)
• M3: 547,229 km (0.101 R)
• M4: 847,322 km (0.063 R)
• M5: 1,369,269 km (0.086 R)
• M6: 1,786,947 km (0.099 R)
• M7: 2,439,941 km (0.104 R)
• M8: 4,093,746 km (0.055 R)
• M9: 5,022,749 km (0.059 R)
• M10: 5,588,378 km (0.087 R)
• M11: 10,634,613 km (0.12 R)
• M12: 11,963,641 km (0.107 R)
• M13: 13,966,756 km (0.108 R)
• M14: 15,351,883 km (0.095 R)
• M15: 15,625,797 km (0.056 R)
• M16: 18,935,650 km (0.093 R)
• M17: 23,580,514 km (0.055 R)
• M18: 29,878,285 km (0.107 R)
• M19: 32,727,975 km (0.097 R)
• M20: 33,525,032 km (0.074 R)
• M21: 36,843,113 km (0.055 R)
• M22: 39,856,164 km (0.092 R)
• M23: 42,221,007 km (0.11 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 352 - 12,285 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit