🌌 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: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.57 AU - 0.63 AU

Year: 296 Days

Day: 44.7 Hours

Environment

Temp: -123 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,001,438 km

• M1: 437,723 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.59 AU - 0.63 AU

Year: 303 Days

Day: 32.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,001,438 km

• M1: 104,419 km (0.079 R)
• M2: 191,336 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.1

Radius: 10.5

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.52 AU - 0.84 AU

Year: 357 Days

Day: 14 Hours

Environment

Temp: -143 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,001,438 km

• M1: 131,945 km (0.116 R)
• M2: 669,301 km (0.071 R)
• M3: 1,047,933 km (0.06 R)
• M4: 1,694,345 km (0.111 R)
• M5: 2,423,785 km (0.118 R)
• M6: 2,970,715 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.5

Radius: 9.5

Gravity: 10.3 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.25 AU - 2.73 AU

Year: 2498 Days

Day: 14.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,001,438 km

• M1: 118,182 km (0.081 R)
• M2: 753,824 km (0.045 R)
• M3: 1,127,669 km (0.081 R)
• M4: 1,539,811 km (0.111 R)
• M5: 1,937,891 km (0.095 R)
• M6: 2,277,478 km (0.03 R)
• M7: 3,216,803 km (0.117 R)
• M8: 4,482,850 km (0.096 R)
• M9: 5,252,830 km (0.096 R)
• M10: 5,761,014 km (0.102 R)
• M11: 6,163,283 km (0.12 R)
• M12: 6,816,427 km (0.097 R)
• M13: 8,061,680 km (0.116 R)
• M14: 8,395,433 km (0.048 R)
• M15: 9,452,341 km (0.067 R)
• M16: 13,478,170 km (0.08 R)
• M17: 14,626,782 km (0.085 R)
• M18: 15,684,290 km (0.106 R)
• M19: 16,630,646 km (0.12 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 54.9

Radius: 4.4

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.77 AU - 8.49 AU

Year: 13400 Days

Day: 23.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,001,438 km

• M1: 54,902 km (0.053 R)
• M2: 218,562 km (0.108 R)
• M3: 423,362 km (0.06 R)
• M4: 738,265 km (0.102 R)
• M5: 1,039,855 km (0.074 R)
• M6: 1,859,202 km (0.092 R)
• M7: 2,248,606 km (0.118 R)
• M8: 3,263,627 km (0.109 R)
• M9: 3,458,404 km (0.061 R)
• M10: 3,681,604 km (0.12 R)
• M11: 4,067,566 km (0.073 R)
• M12: 4,869,560 km (0.086 R)
• M13: 5,254,924 km (0.084 R)
• M14: 6,502,870 km (0.073 R)
• M15: 11,767,069 km (0.097 R)
• M16: 12,272,261 km (0.074 R)
• M17: 15,886,247 km (0.062 R)
• M18: 19,318,770 km (0.114 R)
• M19: 20,085,758 km (0.109 R)
• M20: 23,645,290 km (0.107 R)
• M21: 24,374,879 km (0.031 R)

Asteroid Belt

Center: 8.8 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.1

Radius: 5.5

Gravity: 25.66 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 8.6 AU - 11.32 AU

Year: 19986 Days

Day: 21.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,001,438 km

• M1: 162,762 km (0.038 R)
• M2: 411,394 km (0.113 R)
• M3: 664,813 km (0.091 R)
• M4: 1,205,011 km (0.071 R)
• M5: 1,882,988 km (0.03 R)
• M6: 2,081,505 km (0.109 R)
• M7: 2,360,505 km (0.099 R)
• M8: 2,812,889 km (0.113 R)
• M9: 3,582,570 km (0.119 R)
• M10: 3,826,265 km (0.105 R)
• M11: 5,730,346 km (0.091 R)
• M12: 7,049,052 km (0.079 R)
• M13: 11,596,977 km (0.049 R)
• M14: 13,033,565 km (0.101 R)
• M15: 14,356,010 km (0.09 R)
• M16: 15,604,554 km (0.097 R)
• M17: 20,256,000 km (0.115 R)
• M18: 21,029,870 km (0.12 R)
• M19: 21,325,027 km (0.051 R)
• M20: 23,893,772 km (0.078 R)
• M21: 27,590,485 km (0.089 R)
• M22: 29,390,147 km (0.117 R)
• M23: 30,256,020 km (0.114 R)
• M24: 39,721,526 km (0.095 R)
• M25: 42,323,482 km (0.088 R)
• M26: 46,519,103 km (0.107 R)
• M27: 58,980,008 km (0.094 R)
• M28: 67,986,697 km (0.082 R)
• M29: 70,154,071 km (0.107 R)
• M30: 79,284,927 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.5

Radius: 8

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 10.21 AU - 10.47 AU

Year: 21140 Days

Day: 16.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,001,438 km

• M1: 99,632 km (0.102 R)
• M2: 540,198 km (0.056 R)
• M3: 962,961 km (0.116 R)
• M4: 1,363,285 km (0.119 R)
• M5: 1,694,794 km (0.119 R)
• M6: 2,567,698 km (0.108 R)
• M7: 3,052,096 km (0.117 R)
• M8: 4,463,851 km (0.062 R)
• M9: 5,936,642 km (0.077 R)
• M10: 6,392,915 km (0.065 R)
• M11: 8,979,762 km (0.107 R)
• M12: 10,444,624 km (0.069 R)
• M13: 10,804,108 km (0.09 R)
• M14: 11,997,001 km (0.062 R)
• M15: 12,391,341 km (0.099 R)
• M16: 18,078,304 km (0.058 R)
• M17: 19,936,908 km (0.089 R)
• M18: 20,583,620 km (0.056 R)
• M19: 22,707,760 km (0.117 R)
• M20: 27,727,068 km (0.062 R)
• M21: 31,043,802 km (0.104 R)
• M22: 33,181,556 km (0.081 R)
• M23: 34,352,159 km (0.09 R)
• M24: 36,500,684 km (0.101 R)
• M25: 39,743,966 km (0.106 R)
• M26: 42,412,343 km (0.099 R)
• M27: 43,021,206 km (0.102 R)
• M28: 46,153,037 km (0.102 R)
• M29: 47,121,384 km (0.073 R)
• M30: 52,866,242 km (0.113 R)
• M31: 53,748,570 km (0.086 R)
• M32: 57,747,920 km (0.062 R)
• M33: 59,820,149 km (0.093 R)
• M34: 60,971,006 km (0.109 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 18,843 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit