🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.61 AU - 0.69 AU

Year: 191 Days

Day: 44.8 Hours

Environment

Temp: 163 °C

Axial Tilt: 49.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.57 AU - 0.81 AU

Year: 209 Days

Day: 21 Hours

Environment

Temp: 201 °C

Axial Tilt: 15.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 88,655,495 km

• M1: 42,486 km (0.074 R)
• M2: 89,460 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.74 AU - 0.98 AU

Year: 291 Days

Day: 23.7 Hours

Environment

Temp: 175 °C

Axial Tilt: 0.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.56 AU - 1.86 AU

Year: 817 Days

Day: 34.8 Hours

Environment

Temp: -45 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,655,495 km

• M1: 38,746 km (0.088 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.76 AU - 2.48 AU

Year: 1127 Days

Day: 40.9 Hours

Environment

Temp: -76 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 88,655,495 km

• M1: 47,423 km (0.106 R)
• M2: 373,396 km (0.097 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.77 AU - 2.71 AU

Year: 1225 Days

Day: 37.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 3.18 AU - 4.26 AU

Year: 2621 Days

Day: 14.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.1

Radius: 12.4

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.61 AU - 8.17 AU

Year: 7338 Days

Day: 14.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 88,655,495 km

• M1: 154,834 km (0.107 R)
• M2: 758,461 km (0.072 R)
• M3: 1,178,682 km (0.077 R)
• M4: 1,720,076 km (0.108 R)
• M5: 2,629,183 km (0.056 R)
• M6: 3,034,742 km (0.117 R)
• M7: 3,568,508 km (0.053 R)
• M8: 4,212,826 km (0.08 R)
• M9: 4,772,471 km (0.034 R)
• M10: 6,359,106 km (0.083 R)
• M11: 6,755,092 km (0.031 R)
• M12: 8,745,791 km (0.066 R)
• M13: 9,320,247 km (0.093 R)
• M14: 12,527,326 km (0.079 R)
• M15: 12,941,562 km (0.065 R)
• M16: 15,151,272 km (0.111 R)
• M17: 16,903,213 km (0.101 R)
• M18: 21,757,066 km (0.08 R)
• M19: 22,280,808 km (0.034 R)
• M20: 23,043,757 km (0.105 R)
• M21: 24,300,529 km (0.09 R)
• M22: 29,060,583 km (0.078 R)
• M23: 32,525,868 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 469.2

Radius: 7.1

Gravity: 9.31 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 15.15 AU - 22.97 AU

Year: 30393 Days

Day: 15.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 88,655,495 km

• M1: 88,263 km (0.111 R)
• M2: 369,656 km (0.115 R)
• M3: 851,361 km (0.118 R)
• M4: 2,408,526 km (0.119 R)
• M5: 3,788,865 km (0.099 R)
• M6: 4,017,301 km (0.1 R)
• M7: 7,129,984 km (0.064 R)
• M8: 8,051,806 km (0.097 R)
• M9: 10,508,203 km (0.051 R)
• M10: 13,348,618 km (0.093 R)
• M11: 13,650,656 km (0.04 R)
• M12: 18,744,464 km (0.066 R)
• M13: 22,023,948 km (0.114 R)
• M14: 24,075,833 km (0.091 R)
• M15: 27,206,018 km (0.036 R)
• M16: 29,057,142 km (0.079 R)
• M17: 29,949,045 km (0.092 R)
• M18: 30,336,803 km (0.102 R)
• M19: 32,190,919 km (0.055 R)
• M20: 32,871,140 km (0.08 R)
• M21: 34,401,078 km (0.07 R)
• M22: 37,902,715 km (0.086 R)
• M23: 41,155,571 km (0.1 R)
• M24: 41,795,551 km (0.104 R)
• M25: 43,095,407 km (0.119 R)
• M26: 52,958,245 km (0.104 R)
• M27: 54,671,888 km (0.061 R)
• M28: 57,410,277 km (0.117 R)
• M29: 64,438,834 km (0.12 R)
• M30: 66,172,075 km (0.106 R)
• M31: 67,492,276 km (0.086 R)
• M32: 84,987,448 km (0.111 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 20,047 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit