🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.52 AU - 0.62 AU

Year: 282 Days

Day: 16.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.4

Radius: 8.6

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.75 AU - 1.03 AU

Year: 551 Days

Day: 13.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,702,132 km

• M1: 106,962 km (0.092 R)
• M2: 399,277 km (0.102 R)
• M3: 714,779 km (0.114 R)
• M4: 983,606 km (0.077 R)
• M5: 1,315,713 km (0.05 R)
• M6: 1,611,618 km (0.089 R)
• M7: 1,927,569 km (0.099 R)
• M8: 2,239,031 km (0.1 R)
• M9: 2,544,211 km (0.11 R)
• M10: 3,274,398 km (0.101 R)
• M11: 3,773,008 km (0.065 R)
• M12: 4,466,544 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.8

Radius: 8.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.81 AU - 1.2 AU

Year: 656 Days

Day: 13 Hours

Environment

Temp: -169 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,702,132 km

• M1: 104,419 km (0.116 R)
• M2: 410,945 km (0.1 R)
• M3: 737,368 km (0.07 R)
• M4: 1,503,907 km (0.112 R)
• M5: 2,145,832 km (0.064 R)
• M6: 2,449,366 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.1

Radius: 14.9

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1 AU - 1.2 AU

Year: 757 Days

Day: 13.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,702,132 km

• M1: 188,643 km (0.03 R)
• M2: 683,812 km (0.116 R)
• M3: 1,352,814 km (0.063 R)
• M4: 1,986,061 km (0.041 R)
• M5: 2,838,620 km (0.106 R)
• M6: 3,378,070 km (0.104 R)
• M7: 4,047,819 km (0.114 R)
• M8: 4,531,469 km (0.11 R)
• M9: 5,733,937 km (0.058 R)
• M10: 7,301,872 km (0.05 R)
• M11: 7,949,182 km (0.103 R)
• M12: 8,686,849 km (0.091 R)
• M13: 9,221,961 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.9

Radius: 9.6

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.24 AU - 6.94 AU

Year: 8670 Days

Day: 7.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,702,132 km

• M1: 119,379 km (0.111 R)
• M2: 917,185 km (0.035 R)
• M3: 1,237,922 km (0.062 R)
• M4: 1,765,404 km (0.116 R)
• M5: 2,750,207 km (0.084 R)
• M6: 3,530,510 km (0.038 R)
• M7: 3,829,855 km (0.117 R)
• M8: 4,423,160 km (0.118 R)
• M9: 4,862,080 km (0.077 R)
• M10: 5,492,187 km (0.082 R)
• M11: 7,031,100 km (0.11 R)
• M12: 8,703,455 km (0.113 R)
• M13: 9,584,436 km (0.086 R)
• M14: 12,412,883 km (0.103 R)
• M15: 18,438,087 km (0.099 R)
• M16: 20,281,432 km (0.095 R)
• M17: 21,576,501 km (0.101 R)
• M18: 23,621,504 km (0.069 R)
• M19: 24,420,656 km (0.08 R)
• M20: 25,421,615 km (0.118 R)
• M21: 27,994,549 km (0.073 R)
• M22: 28,589,051 km (0.076 R)
• M23: 37,102,217 km (0.062 R)
• M24: 40,403,243 km (0.077 R)
• M25: 43,629,621 km (0.067 R)
• M26: 44,966,876 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.2

Radius: 3.8

Gravity: 33.67 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.82 AU - 6.46 AU

Year: 9981 Days

Day: 23.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 79.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 42,702,132 km

• M1: 47,423 km (0.102 R)
• M2: 225,294 km (0.061 R)
• M3: 344,524 km (0.076 R)
• M4: 514,018 km (0.069 R)
• M5: 1,257,520 km (0.088 R)
• M6: 1,418,936 km (0.086 R)
• M7: 2,351,080 km (0.085 R)
• M8: 3,438,657 km (0.094 R)
• M9: 4,065,173 km (0.054 R)
• M10: 4,943,611 km (0.115 R)
• M11: 5,475,731 km (0.095 R)
• M12: 5,738,874 km (0.091 R)
• M13: 6,914,264 km (0.065 R)
• M14: 7,105,300 km (0.109 R)
• M15: 7,618,720 km (0.098 R)
• M16: 8,326,767 km (0.11 R)
• M17: 10,213,047 km (0.11 R)
• M18: 11,072,486 km (0.094 R)
• M19: 11,653,525 km (0.111 R)
• M20: 12,254,758 km (0.063 R)
• M21: 12,991,528 km (0.088 R)
• M22: 14,120,842 km (0.099 R)
• M23: 14,366,632 km (0.106 R)
• M24: 15,057,325 km (0.114 R)
• M25: 19,293,937 km (0.07 R)
• M26: 20,367,152 km (0.097 R)
• M27: 20,998,006 km (0.075 R)
• M28: 21,560,644 km (0.074 R)
• M29: 23,651,872 km (0.042 R)
• M30: 29,714,027 km (0.088 R)
• M31: 33,806,576 km (0.101 R)
• M32: 37,432,828 km (0.104 R)
• M33: 41,435,169 km (0.084 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 19,190 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit