🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.84 AU - 0.92 AU

Year: 293 Days

Day: 14.4 Hours

Environment

Temp: 130 °C

Axial Tilt: 5.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,587,148 km

• M1: 367,712 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.1 AU - 1.26 AU

Year: 455 Days

Day: 22.3 Hours

Environment

Temp: 12 °C

Axial Tilt: 0.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 100,587,148 km

• M1: 37,100 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.35 AU - 1.51 AU

Year: 607 Days

Day: 24 Hours

Environment

Temp: -14 °C

Axial Tilt: 5.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.13 AU - 5.17 AU

Year: 2999 Days

Day: 15.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.91 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 11.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.4

Radius: 9.9

Gravity: 9.19 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 10.73 AU - 12.59 AU

Year: 14125 Days

Day: 6 Hours

Environment

Temp: -167 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 100,587,148 km

• M1: 123,119 km (0.05 R)
• M2: 441,613 km (0.054 R)
• M3: 769,681 km (0.033 R)
• M4: 1,129,464 km (0.119 R)
• M5: 1,480,271 km (0.057 R)
• M6: 3,201,394 km (0.087 R)
• M7: 3,714,964 km (0.102 R)
• M8: 5,046,235 km (0.036 R)
• M9: 5,976,435 km (0.039 R)
• M10: 6,799,672 km (0.055 R)
• M11: 10,340,055 km (0.112 R)
• M12: 12,149,741 km (0.095 R)
• M13: 13,129,756 km (0.114 R)
• M14: 15,098,763 km (0.113 R)
• M15: 15,847,351 km (0.062 R)
• M16: 16,386,053 km (0.116 R)
• M17: 17,745,000 km (0.119 R)
• M18: 25,161,763 km (0.072 R)
• M19: 26,427,511 km (0.098 R)
• M20: 26,967,260 km (0.095 R)
• M21: 32,652,578 km (0.106 R)
• M22: 34,798,110 km (0.105 R)
• M23: 42,676,832 km (0.105 R)
• M24: 45,392,183 km (0.12 R)
• M25: 46,322,382 km (0.026 R)
• M26: 51,164,566 km (0.103 R)
• M27: 56,156,348 km (0.092 R)
• M28: 56,690,562 km (0.108 R)
• M29: 61,841,217 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 480.7

Radius: 5.6

Gravity: 15.33 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 14.95 AU - 19.77 AU

Year: 25660 Days

Day: 24 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 100,587,148 km

• M1: 69,713 km (0.115 R)
• M2: 288,574 km (0.025 R)
• M3: 566,527 km (0.059 R)
• M4: 1,158,636 km (0.108 R)
• M5: 1,783,506 km (0.072 R)
• M6: 2,180,539 km (0.092 R)
• M7: 2,586,697 km (0.053 R)
• M8: 2,962,337 km (0.086 R)
• M9: 4,728,938 km (0.103 R)
• M10: 8,298,493 km (0.093 R)
• M11: 8,726,941 km (0.083 R)
• M12: 9,803,148 km (0.109 R)
• M13: 15,076,473 km (0.08 R)
• M14: 17,127,610 km (0.111 R)
• M15: 17,733,631 km (0.053 R)
• M16: 18,086,383 km (0.074 R)
• M17: 18,805,799 km (0.089 R)
• M18: 21,874,649 km (0.092 R)
• M19: 25,040,440 km (0.048 R)
• M20: 29,595,096 km (0.048 R)
• M21: 41,217,505 km (0.104 R)
• M22: 41,526,125 km (0.066 R)
• M23: 42,304,333 km (0.041 R)
• M24: 56,302,954 km (0.12 R)
• M25: 76,765,998 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.4

Radius: 7.7

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 18.29 AU - 18.69 AU

Year: 28206 Days

Day: 23.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 100,587,148 km

• M1: 97,239 km (0.029 R)
• M2: 337,942 km (0.114 R)
• M3: 923,468 km (0.111 R)
• M4: 2,033,185 km (0.119 R)
• M5: 3,289,208 km (0.079 R)
• M6: 4,962,760 km (0.051 R)
• M7: 5,376,697 km (0.119 R)
• M8: 6,313,329 km (0.052 R)
• M9: 6,675,805 km (0.065 R)
• M10: 7,442,494 km (0.071 R)
• M11: 12,055,045 km (0.058 R)
• M12: 13,450,793 km (0.115 R)
• M13: 14,324,295 km (0.104 R)
• M14: 15,523,173 km (0.092 R)
• M15: 19,689,174 km (0.113 R)
• M16: 20,726,187 km (0.075 R)
• M17: 27,300,415 km (0.076 R)
• M18: 30,029,828 km (0.115 R)
• M19: 31,402,388 km (0.074 R)
• M20: 36,151,821 km (0.103 R)
• M21: 44,505,965 km (0.096 R)
• M22: 45,391,136 km (0.072 R)
• M23: 57,467,274 km (0.057 R)
• M24: 58,869,455 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 786.7

Radius: 7

Gravity: 16.06 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 16.05 AU - 21.07 AU

Year: 28366 Days

Day: 21.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 100,587,148 km

• M1: 87,216 km (0.111 R)
• M2: 426,204 km (0.092 R)
• M3: 1,044,642 km (0.111 R)
• M4: 1,459,028 km (0.074 R)
• M5: 3,139,311 km (0.103 R)
• M6: 3,865,459 km (0.075 R)
• M7: 6,187,218 km (0.062 R)
• M8: 6,423,134 km (0.103 R)
• M9: 6,912,768 km (0.098 R)
• M10: 7,911,483 km (0.11 R)
• M11: 8,589,760 km (0.063 R)
• M12: 10,926,030 km (0.117 R)
• M13: 11,201,589 km (0.049 R)
• M14: 14,218,230 km (0.09 R)
• M15: 17,642,077 km (0.116 R)
• M16: 18,698,986 km (0.095 R)
• M17: 25,216,815 km (0.067 R)
• M18: 26,309,179 km (0.089 R)
• M19: 26,929,561 km (0.108 R)
• M20: 33,825,126 km (0.103 R)
• M21: 36,515,045 km (0.08 R)
• M22: 38,385,467 km (0.1 R)
• M23: 44,378,508 km (0.096 R)
• M24: 47,049,578 km (0.073 R)
• M25: 49,825,964 km (0.107 R)
• M26: 50,775,163 km (0.061 R)
• M27: 53,496,947 km (0.044 R)
• M28: 55,095,101 km (0.118 R)
• M29: 56,109,973 km (0.113 R)
• M30: 57,344,305 km (0.093 R)
• M31: 74,579,475 km (0.091 R)
• M32: 82,499,785 km (0.11 R)
• M33: 83,827,466 km (0.074 R)
• M34: 84,630,956 km (0.111 R)
• M35: 91,527,418 km (0.03 R)
• M36: 94,966,823 km (0.064 R)
• M37: 95,839,876 km (0.104 R)
• M38: 98,789,048 km (0.062 R)
• M39: 100,587,215 km (0.088 R)

Kuiper Belt

Range: 30.9 - 49.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 10,971 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit