🌌 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: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.48 AU - 0.64 AU

Year: 160 Days

Day: 31 Hours

Environment

Temp: 163 °C

Axial Tilt: 26.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.61 AU - 0.63 AU

Year: 187 Days

Day: 24.8 Hours

Environment

Temp: 200 °C

Axial Tilt: 37.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.55 AU - 2.01 AU

Year: 909 Days

Day: 13.5 Hours

Environment

Temp: -75 °C

Axial Tilt: 19.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,583,486 km

• M1: 219,460 km (0.109 R)
• M2: 354,547 km (0.074 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.12 AU - 2.32 AU

Year: 1266 Days

Day: 36.3 Hours

Environment

Temp: -90 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.31 AU - 3.73 AU

Year: 2009 Days

Day: 46.9 Hours

Environment

Temp: -117 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,583,486 km

• M1: 43,533 km (0.092 R)
• M2: 214,224 km (0.032 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.38 AU - 3.96 AU

Year: 2692 Days

Day: 43.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,583,486 km

• M1: 247,734 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.4

Radius: 9.3

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.7 AU - 8.12 AU

Year: 8518 Days

Day: 10.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,583,486 km

• M1: 294,409 km (0.118 R)
• M2: 601,234 km (0.08 R)
• M3: 1,464,563 km (0.067 R)
• M4: 2,332,680 km (0.054 R)
• M5: 3,244,628 km (0.092 R)
• M6: 3,458,852 km (0.062 R)
• M7: 3,955,218 km (0.089 R)
• M8: 4,764,094 km (0.08 R)
• M9: 5,734,685 km (0.112 R)
• M10: 6,166,125 km (0.111 R)
• M11: 6,735,644 km (0.065 R)
• M12: 8,702,258 km (0.114 R)
• M13: 9,670,605 km (0.057 R)
• M14: 11,359,266 km (0.113 R)
• M15: 13,707,354 km (0.069 R)
• M16: 18,098,201 km (0.099 R)
• M17: 21,311,413 km (0.03 R)
• M18: 27,274,235 km (0.1 R)
• M19: 34,812,023 km (0.11 R)
• M20: 35,163,727 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.6

Radius: 12.9

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 6.7 AU - 10.06 AU

Year: 9288 Days

Day: 8.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 64,583,486 km

• M1: 233,672 km (0.087 R)
• M2: 609,013 km (0.06 R)
• M3: 1,231,789 km (0.058 R)
• M4: 1,610,571 km (0.095 R)
• M5: 1,954,795 km (0.092 R)
• M6: 2,602,704 km (0.062 R)
• M7: 3,904,205 km (0.078 R)
• M8: 5,205,408 km (0.081 R)
• M9: 6,358,807 km (0.055 R)
• M10: 7,229,616 km (0.112 R)
• M11: 8,941,166 km (0.1 R)
• M12: 9,305,736 km (0.083 R)
• M13: 10,057,166 km (0.106 R)
• M14: 12,727,787 km (0.071 R)
• M15: 15,451,515 km (0.087 R)
• M16: 15,931,425 km (0.116 R)
• M17: 16,692,729 km (0.099 R)
• M18: 19,379,507 km (0.097 R)
• M19: 19,737,045 km (0.057 R)
• M20: 20,037,588 km (0.09 R)
• M21: 20,645,404 km (0.036 R)
• M22: 24,019,733 km (0.093 R)
• M23: 26,458,328 km (0.044 R)
• M24: 27,793,340 km (0.118 R)
• M25: 28,221,638 km (0.059 R)
• M26: 29,968,343 km (0.035 R)
• M27: 30,264,547 km (0.057 R)
• M28: 31,312,779 km (0.111 R)
• M29: 31,767,557 km (0.032 R)
• M30: 32,225,625 km (0.107 R)
• M31: 33,619,578 km (0.084 R)
• M32: 36,333,583 km (0.081 R)
• M33: 37,896,432 km (0.031 R)
• M34: 38,229,586 km (0.085 R)
• M35: 38,648,161 km (0.092 R)
• M36: 42,430,294 km (0.04 R)
• M37: 42,782,897 km (0.112 R)
• M38: 43,136,995 km (0.104 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.4

Radius: 14.4

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 9.07 AU - 13.87 AU

Year: 14874 Days

Day: 5.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,583,486 km

• M1: 202,406 km (0.07 R)
• M2: 785,090 km (0.065 R)
• M3: 1,075,908 km (0.069 R)
• M4: 1,589,777 km (0.086 R)
• M5: 1,932,505 km (0.118 R)
• M6: 4,076,542 km (0.027 R)
• M7: 4,701,861 km (0.039 R)
• M8: 5,860,197 km (0.041 R)
• M9: 9,043,790 km (0.093 R)
• M10: 13,688,804 km (0.05 R)
• M11: 15,453,759 km (0.107 R)
• M12: 21,472,830 km (0.098 R)
• M13: 33,104,214 km (0.07 R)
• M14: 34,688,455 km (0.079 R)
• M15: 39,866,636 km (0.112 R)
• M16: 40,272,196 km (0.087 R)
• M17: 48,034,380 km (0.083 R)
• M18: 51,653,452 km (0.086 R)
• M19: 52,811,340 km (0.115 R)
• M20: 63,174,433 km (0.098 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 19,141 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit