🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.45 AU - 0.75 AU

Year: 305 Days

Day: 45.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,827,407 km

• M1: 197,020 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.3

Radius: 9.6

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.63 AU - 0.79 AU

Year: 392 Days

Day: 14.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 49,827,407 km

• M1: 119,379 km (0.113 R)
• M2: 429,645 km (0.051 R)
• M3: 907,161 km (0.088 R)
• M4: 1,378,993 km (0.052 R)
• M5: 1,783,805 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.8

Radius: 8.5

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.74 AU - 1.2 AU

Year: 627 Days

Day: 10.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,827,407 km

• M1: 105,766 km (0.095 R)
• M2: 413,788 km (0.08 R)
• M3: 876,195 km (0.102 R)
• M4: 1,207,255 km (0.111 R)
• M5: 1,499,270 km (0.098 R)
• M6: 2,323,405 km (0.1 R)
• M7: 2,727,618 km (0.113 R)
• M8: 3,651,235 km (0.073 R)
• M9: 4,329,961 km (0.077 R)
• M10: 4,722,805 km (0.106 R)
• M11: 6,046,297 km (0.049 R)
• M12: 6,403,088 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.1

Radius: 12

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.93 AU - 1.03 AU

Year: 636 Days

Day: 7 Hours

Environment

Temp: -167 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,827,407 km

• M1: 149,299 km (0.119 R)
• M2: 526,734 km (0.109 R)
• M3: 1,239,119 km (0.099 R)
• M4: 1,896,751 km (0.1 R)
• M5: 3,416,965 km (0.091 R)
• M6: 3,967,186 km (0.1 R)
• M7: 6,422,685 km (0.098 R)
• M8: 7,031,399 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191

Radius: 8.7

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.94 AU - 1.3 AU

Year: 778 Days

Day: 7.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,827,407 km

• M1: 111,450 km (0.027 R)
• M2: 408,103 km (0.105 R)
• M3: 828,922 km (0.119 R)
• M4: 1,416,393 km (0.099 R)
• M5: 1,731,895 km (0.092 R)
• M6: 2,197,144 km (0.084 R)
• M7: 2,857,020 km (0.11 R)
• M8: 4,861,183 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497

Radius: 10.7

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.16 AU - 1.72 AU

Year: 1134 Days

Day: 9.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,827,407 km

• M1: 134,488 km (0.096 R)
• M2: 477,965 km (0.079 R)
• M3: 1,083,238 km (0.112 R)
• M4: 1,438,234 km (0.025 R)
• M5: 1,957,339 km (0.111 R)
• M6: 2,448,768 km (0.092 R)
• M7: 3,263,328 km (0.106 R)
• M8: 3,651,235 km (0.087 R)
• M9: 4,005,932 km (0.09 R)
• M10: 5,287,836 km (0.117 R)
• M11: 5,991,544 km (0.079 R)
• M12: 7,033,643 km (0.068 R)
• M13: 7,961,299 km (0.073 R)
• M14: 8,858,588 km (0.092 R)
• M15: 9,503,055 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.5

Radius: 12.6

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.46 AU - 2.12 AU

Year: 1571 Days

Day: 14.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 104.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,827,407 km

• M1: 156,629 km (0.052 R)
• M2: 558,299 km (0.098 R)
• M3: 962,513 km (0.056 R)
• M4: 1,491,940 km (0.085 R)
• M5: 2,108,133 km (0.118 R)
• M6: 2,506,064 km (0.093 R)
• M7: 2,968,022 km (0.105 R)
• M8: 3,606,954 km (0.074 R)
• M9: 4,388,005 km (0.108 R)
• M10: 4,819,146 km (0.098 R)
• M11: 5,788,540 km (0.073 R)
• M12: 7,443,392 km (0.119 R)
• M13: 8,165,501 km (0.099 R)
• M14: 9,394,148 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.2

Radius: 11.5

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.7 AU - 2.48 AU

Year: 1982 Days

Day: 12.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,827,407 km

• M1: 143,016 km (0.067 R)
• M2: 558,299 km (0.104 R)
• M3: 963,859 km (0.059 R)
• M4: 1,358,498 km (0.106 R)
• M5: 1,820,905 km (0.102 R)
• M6: 2,734,499 km (0.097 R)
• M7: 4,076,841 km (0.069 R)
• M8: 4,477,614 km (0.094 R)
• M9: 5,270,333 km (0.116 R)
• M10: 5,936,193 km (0.086 R)
• M11: 8,334,995 km (0.091 R)
• M12: 9,369,614 km (0.054 R)
• M13: 10,003,011 km (0.103 R)
• M14: 11,768,864 km (0.09 R)
• M15: 12,192,376 km (0.113 R)
• M16: 14,639,797 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.5

Radius: 14.9

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.01 AU - 3.09 AU

Year: 2671 Days

Day: 7.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,827,407 km

• M1: 185,352 km (0.059 R)
• M2: 723,455 km (0.096 R)
• M3: 1,479,822 km (0.045 R)
• M4: 1,949,410 km (0.05 R)
• M5: 2,633,820 km (0.079 R)
• M6: 3,253,754 km (0.051 R)
• M7: 5,149,159 km (0.1 R)
• M8: 5,672,003 km (0.072 R)
• M9: 6,496,437 km (0.089 R)
• M10: 7,311,297 km (0.103 R)
• M11: 7,820,079 km (0.06 R)
• M12: 9,631,111 km (0.111 R)
• M13: 11,707,978 km (0.076 R)
• M14: 13,002,598 km (0.09 R)
• M15: 15,580,618 km (0.098 R)
• M16: 16,275,052 km (0.061 R)
• M17: 17,355,298 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.5

Radius: 7.3

Gravity: 11.16 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 6.63 AU - 6.77 AU

Year: 11377 Days

Day: 19.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 49,827,407 km

• M1: 90,956 km (0.079 R)
• M2: 361,877 km (0.117 R)
• M3: 642,373 km (0.096 R)
• M4: 1,016,368 km (0.057 R)
• M5: 1,393,803 km (0.105 R)
• M6: 2,097,811 km (0.113 R)
• M7: 2,863,303 km (0.115 R)
• M8: 3,802,030 km (0.117 R)
• M9: 4,503,195 km (0.118 R)
• M10: 5,320,747 km (0.095 R)
• M11: 5,978,081 km (0.082 R)
• M12: 6,270,694 km (0.105 R)
• M13: 7,287,810 km (0.071 R)
• M14: 9,997,177 km (0.094 R)
• M15: 11,435,710 km (0.099 R)
• M16: 17,004,640 km (0.071 R)
• M17: 18,966,018 km (0.101 R)
• M18: 20,573,896 km (0.113 R)
• M19: 25,747,439 km (0.115 R)
• M20: 28,942,700 km (0.087 R)
• M21: 31,836,521 km (0.111 R)
• M22: 33,524,733 km (0.118 R)
• M23: 34,917,789 km (0.1 R)
• M24: 35,153,555 km (0.036 R)
• M25: 35,390,518 km (0.078 R)
• M26: 36,712,514 km (0.116 R)
• M27: 36,956,508 km (0.115 R)
• M28: 39,454,942 km (0.109 R)
• M29: 43,003,554 km (0.056 R)
• M30: 49,381,060 km (0.099 R)
• M31: 49,827,460 km (0.096 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 19,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit