🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.5

Radius: 12.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.54 AU - 0.72 AU

Year: 345 Days

Day: 5.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,297,546 km

• M1: 152,141 km (0.09 R)
• M2: 639,232 km (0.072 R)
• M3: 1,129,165 km (0.117 R)
• M4: 1,584,092 km (0.087 R)
• M5: 2,030,193 km (0.099 R)
• M6: 2,585,799 km (0.111 R)
• M7: 3,074,984 km (0.098 R)
• M8: 3,476,655 km (0.077 R)
• M9: 4,005,483 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.5

Radius: 8.2

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.69 AU - 0.83 AU

Year: 457 Days

Day: 14.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,297,546 km

• M1: 102,026 km (0.117 R)
• M2: 368,908 km (0.057 R)
• M3: 708,944 km (0.098 R)
• M4: 1,392,008 km (0.075 R)
• M5: 2,300,366 km (0.093 R)
• M6: 2,592,082 km (0.05 R)
• M7: 2,983,580 km (0.118 R)
• M8: 3,669,337 km (0.091 R)
• M9: 4,484,495 km (0.11 R)
• M10: 4,927,305 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.7

Radius: 9.6

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.68 AU - 0.86 AU

Year: 466 Days

Day: 12.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,297,546 km

• M1: 119,379 km (0.064 R)
• M2: 531,372 km (0.054 R)
• M3: 1,088,773 km (0.051 R)
• M4: 1,741,469 km (0.118 R)
• M5: 2,206,120 km (0.113 R)
• M6: 2,587,445 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611

Radius: 10.4

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.86 AU - 0.98 AU

Year: 609 Days

Day: 9.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,297,546 km

• M1: 130,150 km (0.084 R)
• M2: 499,208 km (0.114 R)
• M3: 839,094 km (0.104 R)
• M4: 1,483,712 km (0.115 R)
• M5: 2,182,633 km (0.076 R)
• M6: 2,524,763 km (0.12 R)
• M7: 2,937,055 km (0.104 R)
• M8: 3,613,686 km (0.1 R)
• M9: 3,996,358 km (0.109 R)
• M10: 4,637,235 km (0.087 R)
• M11: 6,955,254 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.8

Radius: 12.2

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.98 AU - 3.48 AU

Year: 4007 Days

Day: 10.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,297,546 km

• M1: 151,842 km (0.046 R)
• M2: 682,765 km (0.107 R)
• M3: 1,301,053 km (0.091 R)
• M4: 1,732,343 km (0.05 R)
• M5: 3,234,156 km (0.087 R)
• M6: 3,662,754 km (0.074 R)
• M7: 4,085,368 km (0.114 R)
• M8: 5,157,387 km (0.062 R)
• M9: 5,745,605 km (0.078 R)
• M10: 6,143,087 km (0.056 R)
• M11: 7,250,410 km (0.112 R)
• M12: 7,990,022 km (0.112 R)
• M13: 9,154,791 km (0.087 R)
• M14: 11,328,598 km (0.088 R)
• M15: 13,231,483 km (0.103 R)
• M16: 15,555,935 km (0.118 R)
• M17: 20,405,150 km (0.049 R)
• M18: 22,993,642 km (0.08 R)
• M19: 24,293,049 km (0.077 R)
• M20: 25,261,545 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.5

Radius: 15

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.26 AU - 4.14 AU

Year: 4913 Days

Day: 12.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,297,546 km

• M1: 188,045 km (0.075 R)
• M2: 835,654 km (0.103 R)
• M3: 1,802,505 km (0.052 R)
• M4: 2,740,633 km (0.103 R)
• M5: 3,736,656 km (0.064 R)
• M6: 4,909,054 km (0.09 R)
• M7: 6,032,534 km (0.056 R)
• M8: 6,738,337 km (0.098 R)
• M9: 7,427,534 km (0.079 R)
• M10: 9,399,833 km (0.106 R)
• M11: 13,644,971 km (0.118 R)
• M12: 15,036,082 km (0.109 R)
• M13: 16,155,224 km (0.065 R)
• M14: 17,711,640 km (0.12 R)
• M15: 18,825,695 km (0.062 R)
• M16: 27,884,894 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.9

Radius: 9.5

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 4.65 AU - 4.67 AU

Year: 6944 Days

Day: 6 Hours

Environment

Temp: -215 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,297,546 km

• M1: 118,182 km (0.094 R)
• M2: 639,680 km (0.099 R)
• M3: 1,044,343 km (0.117 R)
• M4: 1,741,020 km (0.097 R)
• M5: 2,234,244 km (0.098 R)
• M6: 2,606,892 km (0.114 R)
• M7: 2,959,046 km (0.103 R)
• M8: 4,134,137 km (0.095 R)
• M9: 5,163,969 km (0.081 R)
• M10: 6,151,464 km (0.118 R)
• M11: 6,460,384 km (0.117 R)
• M12: 7,259,985 km (0.029 R)
• M13: 8,923,962 km (0.051 R)
• M14: 10,055,520 km (0.056 R)
• M15: 10,877,860 km (0.055 R)
• M16: 12,766,383 km (0.095 R)
• M17: 20,102,812 km (0.049 R)
• M18: 22,927,669 km (0.051 R)
• M19: 25,917,831 km (0.113 R)
• M20: 29,158,570 km (0.109 R)
• M21: 30,132,003 km (0.085 R)
• M22: 36,768,165 km (0.107 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 14,228 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit