🌌 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: 575

Radius: 10.3

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.57 AU - 0.69 AU

Year: 351 Days

Day: 11.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,619,847 km

• M1: 128,056 km (0.12 R)
• M2: 453,730 km (0.119 R)
• M3: 1,064,090 km (0.057 R)
• M4: 1,486,105 km (0.042 R)
• M5: 2,050,089 km (0.093 R)
• M6: 2,988,367 km (0.075 R)
• M7: 3,458,254 km (0.114 R)
• M8: 3,806,368 km (0.082 R)
• M9: 4,452,631 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.5

Radius: 13.9

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.54 AU - 0.8 AU

Year: 385 Days

Day: 11.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,619,847 km

• M1: 174,132 km (0.094 R)
• M2: 773,571 km (0.113 R)
• M3: 1,367,175 km (0.104 R)
• M4: 2,069,537 km (0.115 R)
• M5: 2,609,286 km (0.037 R)
• M6: 3,318,230 km (0.025 R)
• M7: 3,784,228 km (0.095 R)
• M8: 4,398,925 km (0.049 R)
• M9: 4,835,751 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.2

Radius: 14.6

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.64 AU - 0.8 AU

Year: 429 Days

Day: 10.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,619,847 km

• M1: 181,612 km (0.1 R)
• M2: 641,176 km (0.099 R)
• M3: 1,140,085 km (0.11 R)
• M4: 2,129,077 km (0.095 R)
• M5: 2,592,382 km (0.094 R)
• M6: 3,238,794 km (0.095 R)
• M7: 4,165,702 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.4

Radius: 14.3

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.71 AU - 0.75 AU

Year: 438 Days

Day: 13.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,619,847 km

• M1: 178,620 km (0.085 R)
• M2: 643,121 km (0.105 R)
• M3: 1,351,318 km (0.105 R)
• M4: 1,816,567 km (0.113 R)
• M5: 2,306,949 km (0.108 R)
• M6: 2,886,641 km (0.067 R)
• M7: 3,613,387 km (0.103 R)
• M8: 4,286,278 km (0.104 R)
• M9: 4,899,330 km (0.115 R)
• M10: 5,351,265 km (0.119 R)
• M11: 5,937,689 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.7

Radius: 8.5

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.24 AU - 1.56 AU

Year: 1164 Days

Day: 9.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 48,619,847 km

• M1: 324,029 km (0.112 R)
• M2: 676,033 km (0.079 R)
• M3: 1,335,311 km (0.1 R)
• M4: 2,686,329 km (0.075 R)
• M5: 3,216,653 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.7

Radius: 12.1

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.97 AU - 3.17 AU

Year: 2896 Days

Day: 14.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,619,847 km

• M1: 150,645 km (0.106 R)
• M2: 601,234 km (0.044 R)
• M3: 1,180,926 km (0.054 R)
• M4: 3,067,205 km (0.071 R)
• M5: 3,599,026 km (0.082 R)
• M6: 4,213,574 km (0.039 R)
• M7: 4,896,937 km (0.09 R)
• M8: 6,870,731 km (0.105 R)
• M9: 7,429,629 km (0.095 R)
• M10: 7,918,365 km (0.12 R)
• M11: 8,996,816 km (0.103 R)
• M12: 13,053,013 km (0.047 R)
• M13: 15,012,296 km (0.084 R)
• M14: 21,793,717 km (0.105 R)
• M15: 22,459,577 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.2

Radius: 13.2

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.14 AU - 3.04 AU

Year: 2930 Days

Day: 6.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,619,847 km

• M1: 164,857 km (0.098 R)
• M2: 583,880 km (0.077 R)
• M3: 1,097,300 km (0.105 R)
• M4: 1,765,404 km (0.103 R)
• M5: 2,315,925 km (0.118 R)
• M6: 3,358,173 km (0.087 R)
• M7: 3,886,403 km (0.067 R)
• M8: 5,454,638 km (0.096 R)
• M9: 6,188,266 km (0.032 R)
• M10: 6,957,049 km (0.105 R)
• M11: 7,598,225 km (0.086 R)
• M12: 8,311,957 km (0.113 R)
• M13: 9,686,761 km (0.031 R)
• M14: 10,138,996 km (0.114 R)
• M15: 11,331,590 km (0.078 R)
• M16: 14,281,959 km (0.076 R)
• M17: 15,522,724 km (0.118 R)
• M18: 15,986,477 km (0.076 R)
• M19: 16,512,613 km (0.034 R)
• M20: 17,268,830 km (0.117 R)
• M21: 19,736,148 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884

Radius: 4.6

Gravity: 41.78 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.38 AU - 6.56 AU

Year: 8993 Days

Day: 19.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,619,847 km

• M1: 61,934 km (0.038 R)
• M2: 345,122 km (0.099 R)
• M3: 891,155 km (0.072 R)
• M4: 1,253,929 km (0.071 R)
• M5: 2,322,956 km (0.081 R)
• M6: 2,557,226 km (0.078 R)
• M7: 3,453,467 km (0.111 R)
• M8: 3,838,083 km (0.118 R)
• M9: 6,423,583 km (0.09 R)
• M10: 6,651,869 km (0.11 R)
• M11: 8,449,288 km (0.03 R)
• M12: 9,581,444 km (0.058 R)
• M13: 14,794,182 km (0.072 R)
• M14: 15,872,184 km (0.084 R)
• M15: 16,785,629 km (0.077 R)
• M16: 18,258,719 km (0.107 R)
• M17: 20,299,683 km (0.075 R)
• M18: 21,713,383 km (0.082 R)
• M19: 22,925,874 km (0.076 R)
• M20: 23,638,558 km (0.069 R)
• M21: 28,635,426 km (0.06 R)
• M22: 29,566,074 km (0.073 R)
• M23: 41,039,633 km (0.088 R)
• M24: 42,089,361 km (0.042 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 11,264 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit