🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.46 AU - 0.74 AU

Year: 300 Days

Day: 22.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.2

Radius: 12.1

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.68 AU - 0.96 AU

Year: 479 Days

Day: 13.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,459,930 km

• M1: 150,795 km (0.078 R)
• M2: 590,463 km (0.12 R)
• M3: 1,087,128 km (0.077 R)
• M4: 1,547,440 km (0.096 R)
• M5: 2,066,844 km (0.09 R)
• M6: 2,482,876 km (0.104 R)
• M7: 2,921,198 km (0.114 R)
• M8: 3,763,583 km (0.06 R)
• M9: 4,154,931 km (0.085 R)
• M10: 5,119,688 km (0.103 R)
• M11: 5,673,200 km (0.077 R)
• M12: 6,057,966 km (0.031 R)
• M13: 6,941,790 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.9

Radius: 9.9

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.79 AU - 1.21 AU

Year: 646 Days

Day: 11.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,459,930 km

• M1: 124,765 km (0.052 R)
• M2: 1,408,015 km (0.104 R)
• M3: 1,837,511 km (0.05 R)
• M4: 2,237,087 km (0.098 R)
• M5: 3,140,658 km (0.035 R)
• M6: 3,582,420 km (0.078 R)
• M7: 4,079,983 km (0.098 R)
• M8: 4,482,850 km (0.116 R)
• M9: 4,862,978 km (0.119 R)
• M10: 5,196,282 km (0.105 R)
• M11: 5,743,212 km (0.105 R)
• M12: 6,564,953 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.7

Radius: 13.8

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.44 AU - 2.06 AU

Year: 1495 Days

Day: 11.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,459,930 km

• M1: 171,738 km (0.083 R)
• M2: 894,146 km (0.045 R)
• M3: 1,387,520 km (0.103 R)
• M4: 2,001,769 km (0.096 R)
• M5: 2,584,453 km (0.044 R)
• M6: 3,264,375 km (0.113 R)
• M7: 3,821,178 km (0.039 R)
• M8: 4,422,412 km (0.114 R)
• M9: 5,528,988 km (0.101 R)
• M10: 6,589,936 km (0.117 R)
• M11: 7,143,298 km (0.103 R)
• M12: 8,992,627 km (0.088 R)
• M13: 11,038,528 km (0.071 R)
• M14: 12,716,866 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.9

Radius: 13.7

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.58 AU - 2.9 AU

Year: 2928 Days

Day: 10.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,459,930 km

• M1: 170,691 km (0.114 R)
• M2: 597,793 km (0.101 R)
• M3: 1,077,703 km (0.105 R)
• M4: 1,566,439 km (0.116 R)
• M5: 2,507,410 km (0.109 R)
• M6: 3,047,159 km (0.107 R)
• M7: 4,093,895 km (0.04 R)
• M8: 4,962,909 km (0.086 R)
• M9: 5,392,554 km (0.091 R)
• M10: 7,306,958 km (0.095 R)
• M11: 7,738,847 km (0.095 R)
• M12: 9,676,589 km (0.055 R)
• M13: 10,936,652 km (0.087 R)
• M14: 12,916,430 km (0.053 R)
• M15: 14,586,989 km (0.091 R)
• M16: 17,357,093 km (0.085 R)
• M17: 18,073,068 km (0.037 R)
• M18: 19,860,165 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.1

Radius: 6.2

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.87 AU - 8.91 AU

Year: 17115 Days

Day: 23.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 53,459,930 km

• M1: 77,043 km (0.043 R)
• M2: 363,373 km (0.112 R)
• M3: 864,376 km (0.061 R)
• M4: 1,282,951 km (0.108 R)
• M5: 1,954,047 km (0.112 R)
• M6: 2,223,473 km (0.099 R)
• M7: 2,734,350 km (0.088 R)
• M8: 2,963,683 km (0.109 R)
• M9: 3,485,331 km (0.036 R)
• M10: 3,882,962 km (0.074 R)
• M11: 4,478,661 km (0.067 R)
• M12: 6,818,372 km (0.074 R)
• M13: 8,662,913 km (0.1 R)
• M14: 9,113,801 km (0.091 R)
• M15: 9,345,080 km (0.111 R)
• M16: 10,260,020 km (0.11 R)
• M17: 11,824,216 km (0.09 R)
• M18: 12,099,476 km (0.119 R)
• M19: 13,481,012 km (0.077 R)
• M20: 15,811,747 km (0.087 R)
• M21: 16,485,087 km (0.05 R)
• M22: 16,967,690 km (0.04 R)
• M23: 19,142,992 km (0.1 R)
• M24: 19,830,245 km (0.097 R)
• M25: 22,914,055 km (0.025 R)
• M26: 23,428,523 km (0.12 R)
• M27: 25,018,000 km (0.085 R)
• M28: 32,849,448 km (0.106 R)
• M29: 35,289,689 km (0.086 R)
• M30: 37,729,331 km (0.102 R)
• M31: 39,661,986 km (0.096 R)
• M32: 42,297,302 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 304.5

Radius: 3.2

Gravity: 29.74 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.65 AU - 10.51 AU

Year: 17666 Days

Day: 15.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 53,459,930 km

• M1: 39,793 km (0.114 R)
• M2: 154,535 km (0.036 R)
• M3: 302,188 km (0.092 R)
• M4: 406,158 km (0.109 R)
• M5: 556,055 km (0.05 R)
• M6: 915,240 km (0.062 R)
• M7: 1,237,773 km (0.096 R)
• M8: 1,342,641 km (0.104 R)
• M9: 1,540,559 km (0.067 R)
• M10: 2,030,193 km (0.035 R)
• M11: 2,594,925 km (0.117 R)
• M12: 2,879,460 km (0.091 R)
• M13: 3,307,160 km (0.043 R)
• M14: 4,198,763 km (0.083 R)
• M15: 5,071,817 km (0.062 R)
• M16: 6,479,832 km (0.053 R)
• M17: 7,294,093 km (0.115 R)
• M18: 9,122,927 km (0.064 R)
• M19: 10,301,758 km (0.08 R)
• M20: 10,462,725 km (0.118 R)
• M21: 11,011,151 km (0.058 R)
• M22: 11,179,449 km (0.114 R)
• M23: 14,441,131 km (0.068 R)
• M24: 15,749,514 km (0.117 R)
• M25: 16,323,372 km (0.09 R)
• M26: 17,285,286 km (0.094 R)
• M27: 17,741,859 km (0.111 R)
• M28: 21,599,240 km (0.112 R)
• M29: 23,955,855 km (0.087 R)
• M30: 24,332,991 km (0.1 R)
• M31: 24,618,424 km (0.109 R)
• M32: 40,163,139 km (0.092 R)
• M33: 47,598,452 km (0.063 R)
• M34: 47,747,003 km (0.109 R)
• M35: 49,705,239 km (0.093 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 307 - 17,458 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit