🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.6 AU - 0.64 AU

Year: 179 Days

Day: 32.4 Hours

Environment

Temp: 206 °C

Axial Tilt: 21.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.03 AU - 1.07 AU

Year: 395 Days

Day: 31.4 Hours

Environment

Temp: 35 °C

Axial Tilt: 6.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1 AU - 1.1 AU

Year: 395 Days

Day: 30.3 Hours

Environment

Temp: 27 °C

Axial Tilt: 6.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.17 AU - 1.25 AU

Year: 489 Days

Day: 26.6 Hours

Environment

Temp: 2 °C

Axial Tilt: 91.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 75,730,737 km

• M1: 753,524 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.59 AU - 1.71 AU

Year: 778 Days

Day: 38.5 Hours

Environment

Temp: -51 °C

Axial Tilt: 7.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.87 AU - 2.63 AU

Year: 1239 Days

Day: 21 Hours

Environment

Temp: -86 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.3

Radius: 14

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.09 AU - 5.99 AU

Year: 4154 Days

Day: 8.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,730,737 km

• M1: 177,573 km (0.078 R)
• M2: 777,610 km (0.074 R)
• M3: 1,325,736 km (0.106 R)
• M4: 1,809,536 km (0.078 R)
• M5: 2,967,872 km (0.077 R)
• M6: 3,479,796 km (0.095 R)
• M7: 3,990,972 km (0.066 R)
• M8: 4,487,338 km (0.118 R)
• M9: 5,456,283 km (0.12 R)
• M10: 6,123,190 km (0.111 R)
• M11: 6,872,975 km (0.085 R)
• M12: 7,745,729 km (0.038 R)
• M13: 10,007,499 km (0.107 R)
• M14: 10,851,082 km (0.084 R)
• M15: 12,636,383 km (0.097 R)
• M16: 15,048,349 km (0.087 R)
• M17: 17,155,585 km (0.097 R)
• M18: 17,643,274 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.9

Radius: 10.2

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 11.74 AU - 11.76 AU

Year: 14785 Days

Day: 13.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,730,737 km

• M1: 127,457 km (0.115 R)
• M2: 1,522,607 km (0.113 R)
• M3: 3,099,069 km (0.096 R)
• M4: 4,109,304 km (0.042 R)
• M5: 5,679,633 km (0.108 R)
• M6: 12,280,639 km (0.118 R)
• M7: 20,649,742 km (0.086 R)
• M8: 29,359,330 km (0.09 R)
• M9: 30,466,953 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.4

Radius: 7.6

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 11.88 AU - 16.38 AU

Year: 19498 Days

Day: 18.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,730,737 km

• M1: 95,593 km (0.1 R)
• M2: 398,529 km (0.11 R)
• M3: 669,450 km (0.034 R)
• M4: 1,567,636 km (0.077 R)
• M5: 2,138,651 km (0.111 R)
• M6: 2,419,746 km (0.077 R)
• M7: 2,864,500 km (0.029 R)
• M8: 3,495,653 km (0.102 R)
• M9: 6,104,790 km (0.096 R)
• M10: 7,015,243 km (0.099 R)
• M11: 9,103,030 km (0.079 R)
• M12: 9,955,290 km (0.065 R)
• M13: 13,159,526 km (0.111 R)
• M14: 14,458,335 km (0.113 R)
• M15: 17,228,888 km (0.111 R)
• M16: 20,781,239 km (0.108 R)
• M17: 21,509,182 km (0.044 R)
• M18: 23,015,782 km (0.108 R)
• M19: 28,508,417 km (0.037 R)
• M20: 31,616,014 km (0.111 R)
• M21: 36,361,857 km (0.085 R)
• M22: 41,848,209 km (0.068 R)
• M23: 43,891,716 km (0.065 R)
• M24: 45,088,798 km (0.056 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.2

Radius: 6.8

Gravity: 11.03 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 13.74 AU - 17.82 AU

Year: 23011 Days

Day: 16.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,730,737 km

• M1: 84,672 km (0.102 R)
• M2: 406,158 km (0.076 R)
• M3: 3,057,780 km (0.078 R)
• M4: 3,440,302 km (0.119 R)
• M5: 5,932,752 km (0.117 R)
• M6: 6,311,235 km (0.112 R)
• M7: 9,038,853 km (0.12 R)
• M8: 10,477,386 km (0.066 R)
• M9: 12,739,007 km (0.062 R)
• M10: 15,463,184 km (0.067 R)
• M11: 16,019,090 km (0.119 R)
• M12: 16,342,520 km (0.116 R)
• M13: 22,632,961 km (0.045 R)
• M14: 25,043,282 km (0.085 R)
• M15: 25,479,210 km (0.076 R)
• M16: 28,084,756 km (0.067 R)
• M17: 29,754,717 km (0.111 R)
• M18: 31,363,792 km (0.105 R)
• M19: 33,160,462 km (0.032 R)
• M20: 33,686,149 km (0.077 R)
• M21: 36,677,359 km (0.091 R)
• M22: 40,435,108 km (0.076 R)
• M23: 42,252,871 km (0.09 R)
• M24: 53,773,104 km (0.068 R)
• M25: 63,317,000 km (0.096 R)
• M26: 65,352,129 km (0.044 R)
• M27: 66,594,091 km (0.09 R)
• M28: 73,039,964 km (0.069 R)
• M29: 74,377,219 km (0.082 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 14,322 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit