🌌 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: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.42 AU - 0.66 AU

Year: 252 Days

Day: 40.2 Hours

Environment

Temp: -115 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,880,892 km

• M1: 275,110 km (0.058 R)
• M2: 572,960 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.49 AU - 0.65 AU

Year: 274 Days

Day: 40.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.57 AU - 0.73 AU

Year: 333 Days

Day: 31.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 146.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.7

Radius: 9.8

Gravity: 10.04 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.02 AU - 1.18 AU

Year: 734 Days

Day: 12.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,880,892 km

• M1: 121,922 km (0.057 R)
• M2: 429,196 km (0.11 R)
• M3: 734,675 km (0.071 R)
• M4: 1,311,674 km (0.096 R)
• M5: 1,745,209 km (0.086 R)
• M6: 2,478,986 km (0.098 R)
• M7: 2,817,975 km (0.102 R)
• M8: 3,148,287 km (0.057 R)
• M9: 4,826,626 km (0.071 R)
• M10: 5,808,885 km (0.1 R)
• M11: 7,171,124 km (0.043 R)
• M12: 7,548,709 km (0.101 R)
• M13: 8,241,347 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.4

Radius: 12.9

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.76 AU - 1.8 AU

Year: 1510 Days

Day: 14.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,880,892 km

• M1: 162,463 km (0.117 R)
• M2: 741,706 km (0.078 R)
• M3: 1,234,033 km (0.12 R)
• M4: 1,732,343 km (0.104 R)
• M5: 2,179,940 km (0.116 R)
• M6: 3,216,504 km (0.105 R)
• M7: 3,638,071 km (0.117 R)
• M8: 4,611,654 km (0.081 R)
• M9: 5,385,523 km (0.032 R)
• M10: 6,222,224 km (0.074 R)
• M11: 7,143,897 km (0.115 R)
• M12: 7,739,296 km (0.095 R)
• M13: 8,833,156 km (0.043 R)
• M14: 9,344,930 km (0.03 R)
• M15: 10,118,950 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.8

Radius: 10.6

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.97 AU - 3.17 AU

Year: 2620 Days

Day: 5.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,880,892 km

• M1: 141,370 km (0.099 R)
• M2: 797,057 km (0.102 R)
• M3: 2,554,084 km (0.064 R)
• M4: 4,238,856 km (0.057 R)
• M5: 5,179,377 km (0.11 R)
• M6: 5,912,856 km (0.063 R)
• M7: 7,609,595 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.2

Radius: 9.1

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.15 AU - 3.29 AU

Year: 3674 Days

Day: 11.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,880,892 km

• M1: 113,694 km (0.069 R)
• M2: 447,447 km (0.084 R)
• M3: 848,818 km (0.104 R)
• M4: 1,328,429 km (0.083 R)
• M5: 2,114,566 km (0.097 R)
• M6: 2,727,618 km (0.068 R)
• M7: 3,385,250 km (0.102 R)
• M8: 4,682,563 km (0.075 R)
• M9: 5,527,342 km (0.09 R)
• M10: 5,872,315 km (0.073 R)
• M11: 6,231,649 km (0.097 R)
• M12: 6,632,870 km (0.078 R)
• M13: 6,937,900 km (0.061 R)
• M14: 7,940,954 km (0.046 R)
• M15: 8,574,501 km (0.082 R)
• M16: 9,834,863 km (0.086 R)
• M17: 12,012,111 km (0.08 R)
• M18: 12,889,652 km (0.104 R)
• M19: 13,630,760 km (0.092 R)
• M20: 14,960,086 km (0.063 R)
• M21: 15,293,540 km (0.065 R)
• M22: 16,728,183 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416.8

Radius: 3.2

Gravity: 40.7 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 8.13 AU - 13.47 AU

Year: 22567 Days

Day: 16.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,880,892 km

• M1: 39,793 km (0.089 R)
• M2: 146,008 km (0.101 R)
• M3: 371,003 km (0.097 R)
• M4: 549,772 km (0.077 R)
• M5: 714,779 km (0.1 R)
• M6: 1,066,932 km (0.036 R)
• M7: 1,673,701 km (0.048 R)
• M8: 2,285,706 km (0.1 R)
• M9: 2,689,022 km (0.081 R)
• M10: 3,034,294 km (0.115 R)
• M11: 5,868,276 km (0.063 R)
• M12: 7,430,676 km (0.073 R)
• M13: 7,619,768 km (0.099 R)
• M14: 8,981,108 km (0.073 R)
• M15: 9,195,781 km (0.068 R)
• M16: 10,437,593 km (0.11 R)
• M17: 13,386,616 km (0.067 R)
• M18: 15,050,144 km (0.104 R)
• M19: 16,048,860 km (0.042 R)
• M20: 21,234,071 km (0.1 R)
• M21: 23,995,349 km (0.088 R)
• M22: 24,304,568 km (0.08 R)
• M23: 26,325,635 km (0.071 R)
• M24: 30,577,506 km (0.106 R)
• M25: 31,676,751 km (0.101 R)
• M26: 32,298,629 km (0.088 R)
• M27: 38,689,001 km (0.098 R)
• M28: 45,085,357 km (0.118 R)
• M29: 45,241,986 km (0.115 R)
• M30: 57,127,986 km (0.066 R)
• M31: 60,109,172 km (0.098 R)
• M32: 60,298,863 km (0.105 R)
• M33: 62,996,561 km (0.105 R)
• M34: 64,573,771 km (0.031 R)
• M35: 65,975,055 km (0.089 R)
• M36: 68,424,420 km (0.102 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 11,435 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit