🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.49 AU - 0.59 AU

Year: 144 Days

Day: 25.3 Hours

Environment

Temp: 208 °C

Axial Tilt: 5.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.78 AU - 0.78 AU

Year: 249 Days

Day: 35.3 Hours

Environment

Temp: 183 °C

Axial Tilt: 25.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.14 AU - 1.22 AU

Year: 464 Days

Day: 16.8 Hours

Environment

Temp: 18 °C

Axial Tilt: 47 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.37 AU - 1.65 AU

Year: 671 Days

Day: 46.1 Hours

Environment

Temp: -41 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.76 AU - 5.78 AU

Year: 3768 Days

Day: 21.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,049,248 km

• M1: 109,206 km (0.1 R)
• M2: 3,788,865 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.3

Radius: 13.2

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 7.03 AU - 11.55 AU

Year: 10240 Days

Day: 13.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,049,248 km

• M1: 173,833 km (0.098 R)
• M2: 4,581,435 km (0.107 R)
• M3: 5,977,482 km (0.083 R)
• M4: 7,395,670 km (0.12 R)
• M5: 7,999,896 km (0.091 R)
• M6: 14,464,469 km (0.075 R)
• M7: 17,802,147 km (0.092 R)
• M8: 18,372,414 km (0.085 R)
• M9: 18,954,948 km (0.088 R)
• M10: 21,338,042 km (0.117 R)
• M11: 25,877,440 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.5

Radius: 10.2

Gravity: 9.42 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 9.17 AU - 14.99 AU

Year: 15184 Days

Day: 11.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,049,248 km

• M1: 128,654 km (0.114 R)
• M2: 563,386 km (0.09 R)
• M3: 916,885 km (0.105 R)
• M4: 1,529,040 km (0.076 R)
• M5: 1,918,742 km (0.101 R)
• M6: 2,353,474 km (0.064 R)
• M7: 3,001,532 km (0.085 R)
• M8: 3,913,630 km (0.119 R)
• M9: 4,859,088 km (0.105 R)
• M10: 5,790,634 km (0.088 R)
• M11: 6,362,098 km (0.119 R)
• M12: 6,749,108 km (0.037 R)
• M13: 7,665,395 km (0.043 R)
• M14: 8,005,132 km (0.119 R)
• M15: 8,610,853 km (0.081 R)
• M16: 9,576,508 km (0.053 R)
• M17: 10,913,613 km (0.119 R)
• M18: 11,344,156 km (0.106 R)
• M19: 14,981,778 km (0.102 R)
• M20: 15,360,709 km (0.084 R)
• M21: 17,104,721 km (0.118 R)
• M22: 19,153,614 km (0.114 R)
• M23: 23,224,920 km (0.063 R)
• M24: 25,194,974 km (0.079 R)
• M25: 25,623,422 km (0.093 R)
• M26: 31,894,565 km (0.078 R)
• M27: 40,565,557 km (0.093 R)
• M28: 42,198,867 km (0.098 R)
• M29: 48,014,035 km (0.116 R)
• M30: 56,690,861 km (0.117 R)
• M31: 66,357,128 km (0.085 R)
• M32: 69,248,256 km (0.095 R)
• M33: 70,724,787 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.8

Radius: 3.7

Gravity: 40.96 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 15.28 AU - 16.96 AU

Year: 23407 Days

Day: 21.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 79,049,248 km

• M1: 46,226 km (0.075 R)
• M2: 982,409 km (0.099 R)
• M3: 1,418,637 km (0.076 R)
• M4: 1,972,897 km (0.074 R)
• M5: 2,468,664 km (0.119 R)
• M6: 2,683,636 km (0.087 R)
• M7: 3,261,982 km (0.078 R)
• M8: 3,887,749 km (0.043 R)
• M9: 4,015,356 km (0.114 R)
• M10: 4,179,017 km (0.095 R)
• M11: 5,026,788 km (0.082 R)
• M12: 5,490,990 km (0.118 R)
• M13: 5,983,167 km (0.071 R)
• M14: 6,415,355 km (0.112 R)
• M15: 7,537,040 km (0.097 R)
• M16: 9,114,849 km (0.11 R)
• M17: 10,160,388 km (0.085 R)
• M18: 10,587,640 km (0.062 R)
• M19: 10,837,169 km (0.097 R)
• M20: 13,334,107 km (0.118 R)
• M21: 15,065,254 km (0.093 R)
• M22: 15,620,561 km (0.109 R)
• M23: 21,842,636 km (0.057 R)
• M24: 26,567,535 km (0.114 R)
• M25: 30,277,113 km (0.111 R)
• M26: 33,642,916 km (0.092 R)
• M27: 37,681,609 km (0.113 R)
• M28: 39,145,724 km (0.09 R)
• M29: 40,647,537 km (0.06 R)
• M30: 41,105,456 km (0.102 R)
• M31: 45,875,234 km (0.052 R)
• M32: 48,392,817 km (0.115 R)
• M33: 56,117,153 km (0.101 R)
• M34: 59,777,065 km (0.12 R)
• M35: 61,967,028 km (0.059 R)
• M36: 62,370,793 km (0.117 R)
• M37: 62,979,806 km (0.102 R)
• M38: 66,717,509 km (0.079 R)
• M39: 70,380,712 km (0.063 R)
• M40: 70,600,322 km (0.077 R)
• M41: 77,870,180 km (0.049 R)

Kuiper Belt

Range: 30.3 - 51.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 12,843 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit