🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.61 AU - 0.69 AU

Year: 344 Days

Day: 22.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.6

Radius: 14.5

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.77 AU - 0.79 AU

Year: 452 Days

Day: 13 Hours

Environment

Temp: -136 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,977,594 km

• M1: 180,415 km (0.11 R)
• M2: 665,112 km (0.037 R)
• M3: 1,374,655 km (0.042 R)
• M4: 2,088,087 km (0.097 R)
• M5: 2,557,076 km (0.099 R)
• M6: 3,474,560 km (0.085 R)
• M7: 4,647,258 km (0.104 R)
• M8: 5,628,919 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.8

Radius: 12

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.96 AU - 2.42 AU

Year: 2126 Days

Day: 5.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,977,594 km

• M1: 150,346 km (0.1 R)
• M2: 583,132 km (0.077 R)
• M3: 980,464 km (0.095 R)
• M4: 1,617,452 km (0.101 R)
• M5: 2,265,361 km (0.104 R)
• M6: 2,954,558 km (0.04 R)
• M7: 3,712,720 km (0.049 R)
• M8: 4,535,359 km (0.108 R)
• M9: 5,632,809 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.8

Radius: 12.7

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.03 AU - 4.71 AU

Year: 4994 Days

Day: 5.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,977,594 km

• M1: 165,455 km (0.095 R)
• M2: 614,398 km (0.025 R)
• M3: 1,086,679 km (0.096 R)
• M4: 1,547,590 km (0.071 R)
• M5: 2,215,096 km (0.106 R)
• M6: 2,808,999 km (0.075 R)
• M7: 3,507,621 km (0.092 R)
• M8: 4,416,728 km (0.1 R)
• M9: 7,588,202 km (0.11 R)
• M10: 11,989,222 km (0.059 R)
• M11: 12,935,877 km (0.095 R)
• M12: 13,717,975 km (0.114 R)
• M13: 14,586,840 km (0.099 R)
• M14: 15,205,128 km (0.076 R)
• M15: 16,796,999 km (0.098 R)
• M16: 17,728,096 km (0.063 R)
• M17: 19,022,716 km (0.101 R)
• M18: 20,869,202 km (0.031 R)
• M19: 23,743,276 km (0.079 R)
• M20: 30,174,639 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.6

Radius: 7.8

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 7.01 AU - 8.35 AU

Year: 13962 Days

Day: 23.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 53,977,594 km

• M1: 97,089 km (0.113 R)
• M2: 433,535 km (0.104 R)
• M3: 681,867 km (0.116 R)
• M4: 1,052,122 km (0.102 R)
• M5: 1,840,802 km (0.119 R)
• M6: 2,108,133 km (0.115 R)
• M7: 2,858,367 km (0.101 R)
• M8: 3,244,329 km (0.067 R)
• M9: 4,331,906 km (0.099 R)
• M10: 5,391,806 km (0.086 R)
• M11: 5,944,122 km (0.094 R)
• M12: 6,990,260 km (0.099 R)
• M13: 7,557,236 km (0.11 R)
• M14: 9,133,997 km (0.104 R)
• M15: 9,547,037 km (0.087 R)
• M16: 11,801,926 km (0.085 R)
• M17: 13,979,472 km (0.089 R)
• M18: 14,737,784 km (0.081 R)
• M19: 15,378,362 km (0.092 R)
• M20: 17,648,210 km (0.075 R)
• M21: 20,567,912 km (0.081 R)
• M22: 22,003,902 km (0.1 R)
• M23: 22,652,708 km (0.089 R)
• M24: 24,183,543 km (0.088 R)
• M25: 27,343,648 km (0.114 R)
• M26: 28,637,520 km (0.095 R)
• M27: 29,188,489 km (0.067 R)
• M28: 29,746,489 km (0.109 R)
• M29: 34,967,754 km (0.114 R)
• M30: 35,723,972 km (0.074 R)
• M31: 41,465,687 km (0.119 R)
• M32: 43,315,615 km (0.105 R)
• M33: 49,352,038 km (0.097 R)
• M34: 52,406,228 km (0.062 R)
• M35: 57,655,917 km (0.103 R)
• M36: 58,888,005 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.6

Radius: 4.8

Gravity: 20.64 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 8.72 AU - 9.38 AU

Year: 17860 Days

Day: 21.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,977,594 km

• M1: 175,777 km (0.031 R)
• M2: 340,036 km (0.041 R)
• M3: 880,084 km (0.075 R)
• M4: 1,094,757 km (0.055 R)
• M5: 2,448,618 km (0.096 R)
• M6: 2,996,296 km (0.119 R)
• M7: 4,054,551 km (0.109 R)
• M8: 4,361,676 km (0.098 R)
• M9: 4,784,140 km (0.096 R)
• M10: 8,536,055 km (0.066 R)
• M11: 9,352,560 km (0.057 R)
• M12: 9,618,096 km (0.038 R)
• M13: 16,193,670 km (0.046 R)
• M14: 16,887,206 km (0.069 R)
• M15: 20,476,209 km (0.104 R)
• M16: 23,945,084 km (0.081 R)
• M17: 24,945,744 km (0.075 R)
• M18: 29,567,421 km (0.063 R)
• M19: 34,982,116 km (0.041 R)
• M20: 39,210,948 km (0.08 R)
• M21: 42,019,798 km (0.103 R)
• M22: 44,510,303 km (0.118 R)
• M23: 52,736,391 km (0.118 R)
• M24: 54,597,388 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246

Radius: 3.2

Gravity: 24.02 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 8.15 AU - 11.33 AU

Year: 19941 Days

Day: 18.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 53,977,594 km

• M1: 41,139 km (0.11 R)
• M2: 211,083 km (0.113 R)
• M3: 333,902 km (0.08 R)
• M4: 696,079 km (0.093 R)
• M5: 944,711 km (0.083 R)
• M6: 1,198,578 km (0.088 R)
• M7: 1,496,128 km (0.108 R)
• M8: 2,031,539 km (0.118 R)
• M9: 2,274,037 km (0.109 R)
• M10: 4,634,392 km (0.119 R)
• M11: 6,502,720 km (0.103 R)
• M12: 7,407,189 km (0.038 R)
• M13: 8,675,330 km (0.084 R)
• M14: 9,062,789 km (0.104 R)
• M15: 10,028,742 km (0.069 R)
• M16: 10,727,813 km (0.104 R)
• M17: 11,173,914 km (0.025 R)
• M18: 11,748,669 km (0.098 R)
• M19: 12,770,721 km (0.116 R)
• M20: 13,335,005 km (0.052 R)
• M21: 13,850,519 km (0.038 R)
• M22: 14,312,178 km (0.094 R)
• M23: 15,196,900 km (0.066 R)
• M24: 16,408,044 km (0.093 R)
• M25: 20,171,926 km (0.085 R)
• M26: 27,039,217 km (0.097 R)
• M27: 27,346,491 km (0.09 R)
• M28: 33,870,753 km (0.103 R)
• M29: 42,729,041 km (0.073 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 17,431 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit