🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.71 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.1 AU - 1.72 AU

Year: 606 Days

Day: 24.9 Hours

Environment

Temp: -21 °C

Axial Tilt: 16 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.18 AU - 2.46 AU

Year: 1278 Days

Day: 19.6 Hours

Environment

Temp: -73 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,909,080 km

• M1: 39,643 km (0.063 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.23 AU - 2.89 AU

Year: 1481 Days

Day: 41.6 Hours

Environment

Temp: -85 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.79 AU - 3.09 AU

Year: 1823 Days

Day: 28.7 Hours

Environment

Temp: -106 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.9

Radius: 14.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.49 AU - 10.09 AU

Year: 9425 Days

Day: 6.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 98,909,080 km

• M1: 186,698 km (0.115 R)
• M2: 683,513 km (0.035 R)
• M3: 1,539,960 km (0.091 R)
• M4: 3,604,112 km (0.057 R)
• M5: 4,600,883 km (0.069 R)
• M6: 8,415,329 km (0.089 R)
• M7: 9,707,855 km (0.094 R)
• M8: 12,957,569 km (0.08 R)
• M9: 13,434,487 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 811.3

Radius: 5.6

Gravity: 25.87 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 10.5 AU - 15.42 AU

Year: 16873 Days

Day: 19.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 98,909,080 km

• M1: 70,161 km (0.089 R)
• M2: 1,050,027 km (0.082 R)
• M3: 2,378,756 km (0.069 R)
• M4: 2,557,525 km (0.11 R)
• M5: 3,336,930 km (0.116 R)
• M6: 4,199,511 km (0.074 R)
• M7: 6,270,395 km (0.103 R)
• M8: 7,572,644 km (0.106 R)
• M9: 8,414,731 km (0.057 R)
• M10: 9,877,947 km (0.086 R)
• M11: 10,108,328 km (0.086 R)
• M12: 12,612,896 km (0.085 R)
• M13: 13,935,790 km (0.058 R)
• M14: 15,425,635 km (0.12 R)
• M15: 16,691,532 km (0.054 R)
• M16: 17,100,832 km (0.099 R)
• M17: 17,433,238 km (0.027 R)
• M18: 21,186,948 km (0.107 R)
• M19: 27,434,155 km (0.036 R)
• M20: 32,344,256 km (0.092 R)
• M21: 36,835,484 km (0.07 R)
• M22: 44,951,767 km (0.105 R)
• M23: 45,743,738 km (0.1 R)
• M24: 58,577,589 km (0.086 R)
• M25: 65,607,193 km (0.093 R)
• M26: 66,217,104 km (0.041 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 860.1

Radius: 6.1

Gravity: 23.11 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 13.36 AU - 21.62 AU

Year: 26453 Days

Day: 20 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 98,909,080 km

• M1: 77,791 km (0.082 R)
• M2: 1,459,327 km (0.054 R)
• M3: 1,812,977 km (0.101 R)
• M4: 2,798,079 km (0.059 R)
• M5: 3,048,805 km (0.095 R)
• M6: 4,648,754 km (0.08 R)
• M7: 5,204,809 km (0.113 R)
• M8: 5,413,797 km (0.12 R)
• M9: 6,401,143 km (0.072 R)
• M10: 6,937,452 km (0.114 R)
• M11: 7,346,003 km (0.082 R)
• M12: 8,267,377 km (0.073 R)
• M13: 9,949,006 km (0.075 R)
• M14: 10,402,587 km (0.086 R)
• M15: 10,734,994 km (0.111 R)
• M16: 13,032,518 km (0.099 R)
• M17: 13,497,019 km (0.111 R)
• M18: 14,706,667 km (0.043 R)
• M19: 15,638,513 km (0.042 R)
• M20: 16,163,003 km (0.063 R)
• M21: 20,789,766 km (0.068 R)
• M22: 21,853,706 km (0.083 R)
• M23: 22,070,772 km (0.114 R)
• M24: 25,742,203 km (0.035 R)
• M25: 31,982,080 km (0.091 R)
• M26: 32,826,560 km (0.077 R)
• M27: 33,397,874 km (0.061 R)
• M28: 38,840,544 km (0.092 R)
• M29: 42,105,517 km (0.077 R)
• M30: 46,259,551 km (0.071 R)
• M31: 47,520,661 km (0.117 R)
• M32: 56,996,938 km (0.059 R)
• M33: 61,416,807 km (0.094 R)
• M34: 65,382,497 km (0.12 R)
• M35: 67,888,262 km (0.105 R)
• M36: 71,168,943 km (0.049 R)
• M37: 76,285,639 km (0.03 R)
• M38: 78,044,312 km (0.048 R)
• M39: 84,545,685 km (0.072 R)
• M40: 90,278,276 km (0.095 R)
• M41: 93,953,746 km (0.111 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 15,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit