🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.51 AU - 0.57 AU

Year: 252 Days

Day: 41 Hours

Environment

Temp: -116 °C

Axial Tilt: 48.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.8

Radius: 11.6

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.63 AU - 1.03 AU

Year: 481 Days

Day: 13.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,665,866 km

• M1: 144,212 km (0.116 R)
• M2: 518,955 km (0.099 R)
• M3: 941,868 km (0.108 R)
• M4: 1,339,499 km (0.081 R)
• M5: 1,826,740 km (0.082 R)
• M6: 2,411,218 km (0.069 R)
• M7: 2,909,080 km (0.066 R)
• M8: 3,617,725 km (0.107 R)
• M9: 4,185,599 km (0.067 R)
• M10: 4,860,285 km (0.097 R)
• M11: 5,731,842 km (0.096 R)
• M12: 6,195,745 km (0.099 R)
• M13: 6,785,460 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341

Radius: 10.5

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.73 AU - 1.03 AU

Year: 525 Days

Day: 11.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,665,866 km

• M1: 130,599 km (0.092 R)
• M2: 523,742 km (0.082 R)
• M3: 882,328 km (0.114 R)
• M4: 1,597,107 km (0.117 R)
• M5: 2,013,587 km (0.11 R)
• M6: 2,393,117 km (0.086 R)
• M7: 3,036,986 km (0.085 R)
• M8: 3,563,272 km (0.057 R)
• M9: 3,942,951 km (0.08 R)
• M10: 4,556,452 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.2

Radius: 12.1

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.94 AU - 1.34 AU

Year: 774 Days

Day: 14.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,665,866 km

• M1: 150,495 km (0.116 R)
• M2: 626,366 km (0.092 R)
• M3: 1,064,987 km (0.109 R)
• M4: 1,458,878 km (0.093 R)
• M5: 2,055,774 km (0.09 R)
• M6: 2,435,304 km (0.112 R)
• M7: 2,821,117 km (0.103 R)
• M8: 3,621,016 km (0.067 R)
• M9: 4,580,836 km (0.115 R)
• M10: 5,143,773 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 67.6

Radius: 4.9

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 4.76 AU - 7.52 AU

Year: 9674 Days

Day: 15.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,665,866 km

• M1: 61,634 km (0.113 R)
• M2: 284,834 km (0.098 R)
• M3: 486,193 km (0.102 R)
• M4: 865,872 km (0.086 R)
• M5: 1,372,261 km (0.12 R)
• M6: 1,863,989 km (0.08 R)
• M7: 2,096,016 km (0.109 R)
• M8: 2,303,957 km (0.103 R)
• M9: 2,556,328 km (0.116 R)
• M10: 3,277,390 km (0.093 R)
• M11: 3,500,889 km (0.062 R)
• M12: 6,357,311 km (0.095 R)
• M13: 7,066,106 km (0.079 R)
• M14: 8,328,263 km (0.107 R)
• M15: 9,924,323 km (0.096 R)
• M16: 13,659,632 km (0.064 R)
• M17: 15,706,131 km (0.116 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: 263 - 14,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit