🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.8 AU - 1.14 AU

Year: 356 Days

Day: 28.4 Hours

Environment

Temp: 21 °C

Axial Tilt: 31.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.13 AU - 1.73 AU

Year: 637 Days

Day: 23.5 Hours

Environment

Temp: -38 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.52 AU - 1.66 AU

Year: 747 Days

Day: 13.1 Hours

Environment

Temp: -60 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.11 AU - 2.69 AU

Year: 1386 Days

Day: 21.9 Hours

Environment

Temp: -82 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.11 AU - 3.33 AU

Year: 1672 Days

Day: 13.8 Hours

Environment

Temp: -106 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.41 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 14.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 923.3

Radius: 6.5

Gravity: 21.85 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 11.09 AU - 17.09 AU

Year: 19716 Days

Day: 21.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,376,753 km

• M1: 81,381 km (0.092 R)
• M2: 367,263 km (0.089 R)
• M3: 607,517 km (0.089 R)
• M4: 1,867,729 km (0.12 R)
• M5: 2,680,495 km (0.079 R)
• M6: 3,321,073 km (0.109 R)
• M7: 4,901,574 km (0.115 R)
• M8: 5,647,020 km (0.12 R)
• M9: 6,199,037 km (0.076 R)
• M10: 6,556,127 km (0.079 R)
• M11: 6,832,883 km (0.091 R)
• M12: 7,262,827 km (0.071 R)
• M13: 7,812,450 km (0.119 R)
• M14: 9,986,256 km (0.107 R)
• M15: 10,984,373 km (0.102 R)
• M16: 11,243,926 km (0.054 R)
• M17: 17,424,412 km (0.07 R)
• M18: 18,135,899 km (0.109 R)
• M19: 19,521,774 km (0.087 R)
• M20: 20,484,137 km (0.113 R)
• M21: 20,877,729 km (0.114 R)
• M22: 27,522,567 km (0.092 R)
• M23: 29,598,088 km (0.116 R)
• M24: 32,569,252 km (0.103 R)
• M25: 33,375,883 km (0.103 R)
• M26: 38,795,964 km (0.109 R)
• M27: 43,145,671 km (0.103 R)
• M28: 46,783,144 km (0.087 R)
• M29: 47,465,759 km (0.071 R)
• M30: 50,978,616 km (0.107 R)
• M31: 59,508,537 km (0.1 R)
• M32: 70,493,359 km (0.118 R)
• M33: 74,821,674 km (0.027 R)
• M34: 77,883,195 km (0.096 R)
• M35: 79,323,972 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.6

Radius: 4.1

Gravity: 33.11 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 13.23 AU - 15.37 AU

Year: 20159 Days

Day: 18.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 71,376,753 km

• M1: 55,950 km (0.081 R)
• M2: 692,788 km (0.111 R)
• M3: 1,099,844 km (0.087 R)
• M4: 1,233,734 km (0.112 R)
• M5: 1,550,582 km (0.093 R)
• M6: 1,919,640 km (0.074 R)
• M7: 3,082,913 km (0.086 R)
• M8: 3,812,352 km (0.075 R)
• M9: 4,824,382 km (0.048 R)
• M10: 5,721,819 km (0.103 R)
• M11: 9,568,130 km (0.077 R)
• M12: 10,254,485 km (0.111 R)
• M13: 10,431,160 km (0.105 R)
• M14: 10,973,153 km (0.088 R)
• M15: 12,113,089 km (0.093 R)
• M16: 14,184,571 km (0.092 R)
• M17: 18,313,771 km (0.098 R)
• M18: 19,548,552 km (0.112 R)
• M19: 20,743,839 km (0.094 R)
• M20: 21,121,275 km (0.11 R)
• M21: 23,177,796 km (0.093 R)
• M22: 24,620,668 km (0.055 R)
• M23: 26,451,895 km (0.107 R)
• M24: 28,487,773 km (0.119 R)
• M25: 34,290,824 km (0.111 R)
• M26: 36,024,663 km (0.08 R)
• M27: 40,101,504 km (0.045 R)
• M28: 40,981,738 km (0.108 R)
• M29: 48,162,137 km (0.035 R)
• M30: 49,826,712 km (0.111 R)
• M31: 57,053,038 km (0.057 R)
• M32: 57,422,395 km (0.111 R)
• M33: 58,352,744 km (0.12 R)
• M34: 58,539,891 km (0.091 R)
• M35: 59,292,966 km (0.11 R)
• M36: 59,862,037 km (0.097 R)
• M37: 60,626,332 km (0.094 R)
• M38: 61,010,948 km (0.1 R)
• M39: 63,550,671 km (0.115 R)
• M40: 64,746,258 km (0.111 R)
• M41: 65,349,586 km (0.07 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 438 - 14,074 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit