🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.57 AU - 0.69 AU

Year: 323 Days

Day: 48 Hours

Environment

Temp: -129 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798

Radius: 8.4

Gravity: 11.31 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.77 AU - 0.95 AU

Year: 515 Days

Day: 10 Hours

Environment

Temp: -143 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,699,984 km

• M1: 104,719 km (0.088 R)
• M2: 433,385 km (0.08 R)
• M3: 787,034 km (0.111 R)
• M4: 1,116,599 km (0.091 R)
• M5: 1,856,809 km (0.066 R)
• M6: 2,295,430 km (0.119 R)
• M7: 2,649,827 km (0.101 R)
• M8: 3,219,346 km (0.078 R)
• M9: 3,651,684 km (0.102 R)
• M10: 4,297,797 km (0.088 R)
• M11: 5,017,812 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.5

Radius: 12.8

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.83 AU - 1.13 AU

Year: 626 Days

Day: 13 Hours

Environment

Temp: -151 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 86,699,984 km

• M1: 159,172 km (0.112 R)
• M2: 908,209 km (0.064 R)
• M3: 1,389,016 km (0.083 R)
• M4: 1,858,903 km (0.111 R)
• M5: 2,807,952 km (0.088 R)
• M6: 4,045,426 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.5

Radius: 15

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.47 AU - 2.23 AU

Year: 1625 Days

Day: 6.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 164 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,699,984 km

• M1: 186,549 km (0.116 R)
• M2: 712,983 km (0.103 R)
• M3: 1,277,566 km (0.048 R)
• M4: 2,560,218 km (0.081 R)
• M5: 3,567,909 km (0.106 R)
• M6: 5,043,243 km (0.034 R)
• M7: 6,325,148 km (0.086 R)
• M8: 7,171,423 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.5

Radius: 11.9

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.16 AU - 3.1 AU

Year: 2754 Days

Day: 13.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,699,984 km

• M1: 147,952 km (0.068 R)
• M2: 606,769 km (0.084 R)
• M3: 987,346 km (0.106 R)
• M4: 1,598,453 km (0.112 R)
• M5: 2,146,430 km (0.101 R)
• M6: 2,706,824 km (0.067 R)
• M7: 3,133,477 km (0.095 R)
• M8: 3,548,162 km (0.034 R)
• M9: 4,293,160 km (0.028 R)
• M10: 5,067,179 km (0.097 R)
• M11: 5,590,173 km (0.117 R)
• M12: 6,399,947 km (0.118 R)
• M13: 6,952,112 km (0.098 R)
• M14: 7,986,731 km (0.044 R)
• M15: 8,627,608 km (0.042 R)
• M16: 9,229,590 km (0.112 R)
• M17: 10,088,731 km (0.106 R)
• M18: 10,517,927 km (0.105 R)
• M19: 15,355,773 km (0.108 R)
• M20: 16,240,943 km (0.048 R)
• M21: 16,886,009 km (0.109 R)
• M22: 18,170,157 km (0.109 R)
• M23: 20,743,989 km (0.109 R)
• M24: 21,375,741 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.5

Radius: 12.1

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.35 AU - 5.43 AU

Year: 5939 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,699,984 km

• M1: 150,495 km (0.098 R)
• M2: 858,243 km (0.115 R)
• M3: 1,350,570 km (0.108 R)
• M4: 2,597,318 km (0.11 R)
• M5: 3,762,536 km (0.115 R)
• M6: 5,754,731 km (0.082 R)
• M7: 6,864,448 km (0.092 R)
• M8: 7,264,473 km (0.062 R)
• M9: 7,857,927 km (0.097 R)
• M10: 8,333,499 km (0.086 R)
• M11: 9,709,949 km (0.093 R)
• M12: 10,517,927 km (0.108 R)
• M13: 11,370,336 km (0.102 R)
• M14: 12,660,019 km (0.105 R)
• M15: 13,110,907 km (0.103 R)
• M16: 14,151,510 km (0.07 R)
• M17: 17,604,079 km (0.101 R)
• M18: 18,229,548 km (0.1 R)
• M19: 23,254,241 km (0.097 R)
• M20: 23,931,620 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 767.6

Radius: 6.9

Gravity: 16.12 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.88 AU - 12.76 AU

Year: 22980 Days

Day: 17.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 86,699,984 km

• M1: 85,869 km (0.086 R)
• M2: 323,431 km (0.091 R)
• M3: 590,912 km (0.071 R)
• M4: 810,372 km (0.065 R)
• M5: 1,153,400 km (0.047 R)
• M6: 2,666,133 km (0.118 R)
• M7: 3,550,556 km (0.118 R)
• M8: 4,160,616 km (0.117 R)
• M9: 5,383,429 km (0.065 R)
• M10: 6,457,093 km (0.112 R)
• M11: 8,571,659 km (0.079 R)
• M12: 8,850,659 km (0.071 R)
• M13: 9,545,391 km (0.111 R)
• M14: 11,174,512 km (0.107 R)
• M15: 12,619,179 km (0.086 R)
• M16: 13,498,365 km (0.045 R)
• M17: 14,417,794 km (0.106 R)
• M18: 15,215,300 km (0.067 R)
• M19: 17,784,195 km (0.082 R)
• M20: 19,745,573 km (0.12 R)
• M21: 21,029,421 km (0.049 R)
• M22: 21,743,452 km (0.115 R)
• M23: 25,100,428 km (0.119 R)
• M24: 26,605,533 km (0.066 R)
• M25: 27,440,438 km (0.094 R)
• M26: 30,435,687 km (0.107 R)
• M27: 31,878,558 km (0.094 R)
• M28: 33,504,089 km (0.087 R)
• M29: 37,213,966 km (0.086 R)
• M30: 39,167,715 km (0.103 R)
• M31: 43,441,875 km (0.082 R)
• M32: 45,100,766 km (0.05 R)
• M33: 45,606,556 km (0.115 R)
• M34: 46,457,918 km (0.092 R)
• M35: 59,312,414 km (0.094 R)
• M36: 67,092,251 km (0.049 R)
• M37: 78,162,344 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: 420 - 11,583 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit