🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.68 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.29 AU - 1.41 AU

Year: 666 Days

Day: 38.5 Hours

Environment

Temp: -79 °C

Axial Tilt: 18.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.25 AU - 2.05 AU

Year: 900 Days

Day: 22.1 Hours

Environment

Temp: -92 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.93 AU - 2.29 AU

Year: 1301 Days

Day: 31.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 108.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,769,707 km

• M1: 735,573 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.1

Radius: 14.2

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.79 AU - 2.89 AU

Year: 2032 Days

Day: 13 Hours

Environment

Temp: -144 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,769,707 km

• M1: 176,675 km (0.087 R)
• M2: 747,391 km (0.083 R)
• M3: 1,216,081 km (0.041 R)
• M4: 1,676,843 km (0.094 R)
• M5: 2,182,184 km (0.036 R)
• M6: 2,702,336 km (0.051 R)
• M7: 3,339,024 km (0.106 R)
• M8: 4,036,151 km (0.079 R)
• M9: 4,915,786 km (0.108 R)
• M10: 5,772,084 km (0.04 R)
• M11: 6,973,056 km (0.108 R)
• M12: 8,782,293 km (0.109 R)
• M13: 10,514,935 km (0.097 R)
• M14: 11,462,338 km (0.113 R)
• M15: 14,740,028 km (0.082 R)
• M16: 16,870,451 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.9

Radius: 8.7

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.74 AU - 8.16 AU

Year: 7779 Days

Day: 12.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,769,707 km

• M1: 108,309 km (0.117 R)
• M2: 418,874 km (0.042 R)
• M3: 752,776 km (0.095 R)
• M4: 1,390,063 km (0.051 R)
• M5: 1,756,279 km (0.115 R)
• M6: 2,030,342 km (0.07 R)
• M7: 3,517,944 km (0.079 R)
• M8: 4,204,299 km (0.107 R)
• M9: 5,624,282 km (0.1 R)
• M10: 6,000,221 km (0.116 R)
• M11: 6,293,134 km (0.104 R)
• M12: 7,339,272 km (0.06 R)
• M13: 10,929,620 km (0.102 R)
• M14: 11,318,425 km (0.079 R)
• M15: 13,904,224 km (0.085 R)
• M16: 15,184,184 km (0.095 R)
• M17: 16,860,129 km (0.116 R)
• M18: 17,909,558 km (0.062 R)
• M19: 20,138,117 km (0.059 R)
• M20: 22,311,774 km (0.108 R)
• M21: 24,554,546 km (0.047 R)
• M22: 30,047,630 km (0.11 R)
• M23: 32,277,536 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.5

Radius: 8.5

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6.63 AU - 9.57 AU

Year: 9788 Days

Day: 8.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,769,707 km

• M1: 156,180 km (0.072 R)
• M2: 695,481 km (0.083 R)
• M3: 1,120,338 km (0.105 R)
• M4: 2,286,155 km (0.106 R)
• M5: 3,356,976 km (0.057 R)
• M6: 4,824,083 km (0.088 R)
• M7: 7,277,637 km (0.063 R)
• M8: 7,740,643 km (0.11 R)
• M9: 9,248,440 km (0.058 R)
• M10: 10,996,939 km (0.097 R)
• M11: 12,356,934 km (0.107 R)
• M12: 12,653,736 km (0.066 R)
• M13: 17,400,626 km (0.114 R)
• M14: 17,849,120 km (0.058 R)
• M15: 19,640,405 km (0.12 R)
• M16: 20,787,522 km (0.091 R)
• M17: 21,462,807 km (0.098 R)
• M18: 22,327,333 km (0.072 R)
• M19: 22,679,636 km (0.046 R)
• M20: 35,412,808 km (0.095 R)
• M21: 37,232,367 km (0.063 R)
• M22: 39,754,288 km (0.111 R)
• M23: 49,775,550 km (0.092 R)
• M24: 50,075,643 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.5

Radius: 3.9

Gravity: 44.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 9.17 AU - 13.73 AU

Year: 16451 Days

Day: 15.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 51,769,707 km

• M1: 49,367 km (0.099 R)
• M2: 208,091 km (0.089 R)
• M3: 346,469 km (0.052 R)
• M4: 876,943 km (0.083 R)
• M5: 1,024,147 km (0.099 R)
• M6: 1,383,481 km (0.068 R)
• M7: 1,768,995 km (0.079 R)
• M8: 2,325,798 km (0.117 R)
• M9: 4,014,010 km (0.116 R)
• M10: 4,199,362 km (0.054 R)
• M11: 5,033,968 km (0.053 R)
• M12: 5,584,788 km (0.075 R)
• M13: 6,053,478 km (0.09 R)
• M14: 7,158,258 km (0.118 R)
• M15: 7,339,421 km (0.061 R)
• M16: 8,952,385 km (0.082 R)
• M17: 10,611,127 km (0.116 R)
• M18: 11,950,177 km (0.113 R)
• M19: 12,858,685 km (0.091 R)
• M20: 15,106,243 km (0.059 R)
• M21: 20,632,838 km (0.117 R)
• M22: 27,590,036 km (0.112 R)
• M23: 29,516,109 km (0.108 R)
• M24: 31,529,995 km (0.037 R)
• M25: 31,651,319 km (0.08 R)
• M26: 37,707,041 km (0.088 R)
• M27: 38,255,317 km (0.06 R)
• M28: 40,789,206 km (0.106 R)
• M29: 42,244,045 km (0.071 R)
• M30: 44,186,723 km (0.111 R)
• M31: 46,344,373 km (0.06 R)
• M32: 47,131,707 km (0.111 R)
• M33: 48,248,904 km (0.115 R)
• M34: 50,868,512 km (0.08 R)
• M35: 52,894,366 km (0.117 R)
• M36: 53,065,506 km (0.093 R)
• M37: 63,640,430 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211

Radius: 5.6

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 10.53 AU - 15.75 AU

Year: 20224 Days

Day: 24.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,769,707 km

• M1: 73,752 km (0.077 R)
• M2: 258,505 km (0.098 R)
• M3: 642,972 km (0.119 R)
• M4: 1,204,562 km (0.087 R)
• M5: 2,563,060 km (0.046 R)
• M6: 3,304,617 km (0.103 R)
• M7: 3,555,193 km (0.11 R)
• M8: 5,751,589 km (0.107 R)
• M9: 9,796,117 km (0.065 R)
• M10: 11,804,618 km (0.098 R)
• M11: 12,631,296 km (0.116 R)
• M12: 14,137,148 km (0.107 R)
• M13: 19,046,801 km (0.117 R)
• M14: 21,275,510 km (0.108 R)
• M15: 26,839,055 km (0.059 R)
• M16: 35,301,806 km (0.101 R)
• M17: 35,663,384 km (0.105 R)
• M18: 37,383,311 km (0.112 R)
• M19: 39,545,300 km (0.119 R)
• M20: 43,423,325 km (0.059 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 14,395 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit