🌌 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: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.51 AU - 0.59 AU

Year: 149 Days

Day: 40.3 Hours

Environment

Temp: 175 °C

Axial Tilt: 23.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.68 AU - 1.12 AU

Year: 312 Days

Day: 34.3 Hours

Environment

Temp: 162 °C

Axial Tilt: 9.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.5 AU - 1.6 AU

Year: 705 Days

Day: 43.3 Hours

Environment

Temp: -35 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,269,554 km

• M1: 403,316 km (0.078 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.85 AU - 2.49 AU

Year: 1168 Days

Day: 43.8 Hours

Environment

Temp: -79 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,269,554 km

• M1: 970,142 km (0.033 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.35 AU - 2.71 AU

Year: 1470 Days

Day: 46.6 Hours

Environment

Temp: -87 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.87 AU - 2.91 AU

Year: 1794 Days

Day: 19.3 Hours

Environment

Temp: -107 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.7

Radius: 8.3

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.9 AU - 6.12 AU

Year: 4096 Days

Day: 14.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 70,269,554 km

• M1: 106,962 km (0.098 R)
• M2: 454,927 km (0.058 R)
• M3: 931,845 km (0.104 R)
• M4: 1,200,523 km (0.119 R)
• M5: 1,489,396 km (0.084 R)
• M6: 1,900,491 km (0.099 R)
• M7: 2,210,608 km (0.116 R)
• M8: 3,312,994 km (0.055 R)
• M9: 3,785,873 km (0.098 R)
• M10: 4,082,077 km (0.09 R)
• M11: 4,462,504 km (0.074 R)
• M12: 4,769,330 km (0.11 R)
• M13: 5,666,019 km (0.097 R)
• M14: 7,104,403 km (0.115 R)
• M15: 7,959,504 km (0.116 R)
• M16: 8,626,412 km (0.089 R)
• M17: 10,642,692 km (0.084 R)
• M18: 10,936,203 km (0.062 R)
• M19: 14,277,621 km (0.107 R)
• M20: 15,103,102 km (0.034 R)
• M21: 15,688,927 km (0.095 R)
• M22: 17,479,015 km (0.103 R)
• M23: 19,215,398 km (0.104 R)
• M24: 19,588,495 km (0.084 R)
• M25: 22,819,061 km (0.104 R)
• M26: 23,237,486 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.6

Radius: 14.2

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 10.56 AU - 13.66 AU

Year: 15392 Days

Day: 9.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,269,554 km

• M1: 176,675 km (0.069 R)
• M2: 633,547 km (0.095 R)
• M3: 1,781,112 km (0.106 R)
• M4: 2,266,557 km (0.119 R)
• M5: 3,512,558 km (0.086 R)
• M6: 4,170,639 km (0.117 R)
• M7: 8,775,860 km (0.095 R)
• M8: 11,319,772 km (0.108 R)
• M9: 11,846,655 km (0.081 R)
• M10: 13,203,658 km (0.112 R)
• M11: 17,430,695 km (0.058 R)
• M12: 21,582,335 km (0.04 R)
• M13: 24,078,376 km (0.072 R)
• M14: 25,445,700 km (0.116 R)
• M15: 27,071,081 km (0.114 R)
• M16: 27,909,278 km (0.095 R)
• M17: 31,666,129 km (0.063 R)
• M18: 38,699,922 km (0.1 R)
• M19: 45,377,821 km (0.104 R)
• M20: 49,919,912 km (0.03 R)
• M21: 52,948,371 km (0.094 R)
• M22: 53,437,556 km (0.092 R)
• M23: 54,259,447 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.2

Radius: 10.2

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 10.81 AU - 13.67 AU

Year: 15641 Days

Day: 9.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 70,269,554 km

• M1: 144,362 km (0.056 R)
• M2: 515,813 km (0.078 R)
• M3: 1,262,756 km (0.109 R)
• M4: 2,001,769 km (0.099 R)
• M5: 2,468,664 km (0.119 R)
• M6: 3,766,874 km (0.044 R)
• M7: 4,129,649 km (0.114 R)
• M8: 5,249,688 km (0.068 R)
• M9: 6,101,948 km (0.106 R)
• M10: 6,518,578 km (0.095 R)
• M11: 7,133,874 km (0.093 R)
• M12: 9,763,655 km (0.055 R)
• M13: 10,103,691 km (0.084 R)
• M14: 11,233,304 km (0.104 R)
• M15: 11,733,260 km (0.092 R)
• M16: 12,313,550 km (0.108 R)
• M17: 12,644,012 km (0.102 R)
• M18: 17,169,497 km (0.116 R)
• M19: 18,774,084 km (0.102 R)
• M20: 20,661,411 km (0.117 R)
• M21: 27,413,511 km (0.061 R)
• M22: 28,781,434 km (0.047 R)
• M23: 32,274,245 km (0.092 R)
• M24: 41,552,454 km (0.117 R)
• M25: 48,090,330 km (0.077 R)
• M26: 50,244,988 km (0.1 R)
• M27: 54,390,644 km (0.07 R)
• M28: 55,282,248 km (0.097 R)
• M29: 57,094,327 km (0.104 R)
• M30: 59,508,986 km (0.086 R)
• M31: 61,220,086 km (0.082 R)
• M32: 65,540,174 km (0.044 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 19,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit