🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.3

Radius: 8.5

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.61 AU - 0.77 AU

Year: 364 Days

Day: 6.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 35,740,736 km

• M1: 106,364 km (0.065 R)
• M2: 438,172 km (0.09 R)
• M3: 740,061 km (0.068 R)
• M4: 1,116,000 km (0.102 R)
• M5: 1,923,380 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.3

Radius: 11.4

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.67 AU - 1.03 AU

Year: 498 Days

Day: 11.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 67.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,740,736 km

• M1: 141,819 km (0.109 R)
• M2: 576,999 km (0.082 R)
• M3: 976,575 km (0.052 R)
• M4: 1,679,535 km (0.12 R)
• M5: 2,277,927 km (0.119 R)
• M6: 2,636,363 km (0.072 R)
• M7: 3,041,923 km (0.1 R)
• M8: 3,561,327 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.3

Radius: 12.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.21 AU - 1.25 AU

Year: 867 Days

Day: 6.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 35,740,736 km

• M1: 153,039 km (0.09 R)
• M2: 734,226 km (0.1 R)
• M3: 1,250,937 km (0.076 R)
• M4: 2,440,091 km (0.064 R)
• M5: 3,285,169 km (0.105 R)
• M6: 4,399,673 km (0.104 R)
• M7: 5,568,631 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63

Radius: 10.8

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.27 AU - 1.35 AU

Year: 953 Days

Day: 8.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,740,736 km

• M1: 134,488 km (0.116 R)
• M2: 698,472 km (0.093 R)
• M3: 1,104,481 km (0.115 R)
• M4: 1,586,037 km (0.108 R)
• M5: 3,099,518 km (0.112 R)
• M6: 4,058,889 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.3

Radius: 9.3

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.29 AU - 2.09 AU

Year: 1397 Days

Day: 14 Hours

Environment

Temp: -186 °C

Axial Tilt: 108.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,740,736 km

• M1: 115,639 km (0.116 R)
• M2: 640,129 km (0.066 R)
• M3: 1,000,959 km (0.102 R)
• M4: 1,386,473 km (0.073 R)
• M5: 2,987,170 km (0.067 R)
• M6: 3,298,783 km (0.093 R)
• M7: 3,798,888 km (0.096 R)
• M8: 4,594,749 km (0.038 R)
• M9: 5,073,462 km (0.118 R)
• M10: 6,812,388 km (0.079 R)
• M11: 8,153,533 km (0.1 R)
• M12: 9,503,803 km (0.069 R)
• M13: 11,636,919 km (0.109 R)
• M14: 13,067,673 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.6

Radius: 11.4

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.18 AU - 2.56 AU

Year: 2320 Days

Day: 11.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,740,736 km

• M1: 142,268 km (0.062 R)
• M2: 617,540 km (0.089 R)
• M3: 1,582,147 km (0.104 R)
• M4: 2,396,259 km (0.116 R)
• M5: 3,337,229 km (0.06 R)
• M6: 3,730,522 km (0.112 R)
• M7: 4,389,052 km (0.067 R)
• M8: 7,883,209 km (0.033 R)
• M9: 9,462,813 km (0.107 R)
• M10: 12,214,068 km (0.079 R)
• M11: 12,699,064 km (0.114 R)
• M12: 13,323,336 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.6

Radius: 14.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.89 AU - 6.13 AU

Year: 7130 Days

Day: 14.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 35,740,736 km

• M1: 183,407 km (0.081 R)
• M2: 807,829 km (0.094 R)
• M3: 1,449,005 km (0.113 R)
• M4: 1,998,628 km (0.102 R)
• M5: 2,651,473 km (0.109 R)
• M6: 3,598,876 km (0.091 R)
• M7: 4,927,455 km (0.118 R)
• M8: 5,536,767 km (0.113 R)
• M9: 6,261,568 km (0.066 R)
• M10: 6,802,664 km (0.09 R)
• M11: 7,301,573 km (0.082 R)
• M12: 8,373,442 km (0.108 R)
• M13: 9,287,335 km (0.1 R)
• M14: 9,858,051 km (0.09 R)
• M15: 11,363,305 km (0.062 R)
• M16: 12,909,399 km (0.096 R)
• M17: 16,992,074 km (0.066 R)
• M18: 18,184,369 km (0.053 R)
• M19: 20,735,611 km (0.078 R)
• M20: 21,942,866 km (0.096 R)
• M21: 24,085,556 km (0.065 R)
• M22: 24,829,955 km (0.076 R)
• M23: 26,714,141 km (0.089 R)
• M24: 27,871,280 km (0.099 R)
• M25: 29,810,966 km (0.086 R)
• M26: 30,381,383 km (0.118 R)
• M27: 32,235,798 km (0.119 R)
• M28: 34,580,146 km (0.096 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 17,406 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit