🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.54 AU - 0.58 AU

Year: 148 Days

Day: 15.3 Hours

Environment

Temp: 195 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.6 AU - 0.66 AU

Year: 177 Days

Day: 12.2 Hours

Environment

Temp: 244 °C

Axial Tilt: 39.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,382,839 km

• M1: 181,612 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.51 AU - 0.75 AU

Year: 177 Days

Day: 35.7 Hours

Environment

Temp: 247 °C

Axial Tilt: 24.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.34 AU - 1.42 AU

Year: 572 Days

Day: 14.1 Hours

Environment

Temp: 10 °C

Axial Tilt: 9.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.25 AU - 1.79 AU

Year: 662 Days

Day: 13 Hours

Environment

Temp: 5 °C

Axial Tilt: 15.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.65 AU - 3.55 AU

Year: 1927 Days

Day: 19.9 Hours

Environment

Temp: -96 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.38 AU - 5.06 AU

Year: 3061 Days

Day: 19.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 136.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 4.42 AU - 4.78 AU

Year: 3484 Days

Day: 28.2 Hours

Environment

Temp: -127 °C

Axial Tilt: 23.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.3

Radius: 8.9

Gravity: 11.58 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6.46 AU - 9.32 AU

Year: 7826 Days

Day: 11.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,382,839 km

• M1: 112,049 km (0.12 R)
• M2: 427,401 km (0.117 R)
• M3: 826,827 km (0.083 R)
• M4: 1,319,004 km (0.108 R)
• M5: 1,778,270 km (0.112 R)
• M6: 2,566,501 km (0.067 R)
• M7: 3,018,137 km (0.09 R)
• M8: 4,054,551 km (0.087 R)
• M9: 5,408,412 km (0.104 R)
• M10: 5,840,450 km (0.114 R)
• M11: 6,513,192 km (0.103 R)
• M12: 6,849,488 km (0.056 R)
• M13: 7,516,246 km (0.118 R)
• M14: 8,752,971 km (0.086 R)
• M15: 9,538,211 km (0.115 R)
• M16: 13,631,807 km (0.067 R)
• M17: 15,070,340 km (0.118 R)
• M18: 15,396,014 km (0.09 R)
• M19: 15,726,327 km (0.066 R)
• M20: 19,990,763 km (0.111 R)
• M21: 21,186,350 km (0.12 R)
• M22: 22,939,487 km (0.093 R)
• M23: 27,209,758 km (0.108 R)
• M24: 28,083,859 km (0.109 R)
• M25: 31,661,791 km (0.082 R)
• M26: 32,412,024 km (0.031 R)
• M27: 37,640,619 km (0.119 R)
• M28: 39,583,597 km (0.083 R)
• M29: 41,084,063 km (0.036 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.4

Radius: 8.7

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 10.92 AU - 12.32 AU

Year: 13986 Days

Day: 8.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,382,839 km

• M1: 124,465 km (0.101 R)
• M2: 399,127 km (0.115 R)
• M3: 946,057 km (0.03 R)
• M4: 1,351,467 km (0.072 R)
• M5: 2,204,025 km (0.073 R)
• M6: 3,039,530 km (0.108 R)
• M7: 3,352,488 km (0.088 R)
• M8: 4,304,080 km (0.055 R)
• M9: 5,288,434 km (0.103 R)
• M10: 5,888,322 km (0.092 R)
• M11: 7,917,168 km (0.073 R)
• M12: 9,138,186 km (0.093 R)
• M13: 9,588,775 km (0.096 R)
• M14: 10,054,024 km (0.058 R)
• M15: 10,752,646 km (0.063 R)
• M16: 15,854,233 km (0.093 R)
• M17: 17,249,233 km (0.086 R)
• M18: 19,946,931 km (0.096 R)
• M19: 21,048,869 km (0.114 R)
• M20: 22,550,383 km (0.069 R)
• M21: 24,502,186 km (0.091 R)
• M22: 29,166,199 km (0.099 R)
• M23: 30,143,073 km (0.058 R)
• M24: 31,141,789 km (0.068 R)
• M25: 35,357,457 km (0.073 R)
• M26: 38,370,208 km (0.087 R)
• M27: 46,348,711 km (0.082 R)
• M28: 47,529,188 km (0.083 R)

Kuiper Belt

Range: 31.1 - 49.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 15,402 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit