🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.52 AU - 0.54 AU

Year: 140 Days

Day: 33.3 Hours

Environment

Temp: 229 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.85 AU - 1.03 AU

Year: 330 Days

Day: 40.8 Hours

Environment

Temp: 124 °C

Axial Tilt: 46 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.14 AU - 1.18 AU

Year: 452 Days

Day: 25 Hours

Environment

Temp: 28 °C

Axial Tilt: 24.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 82,111,416 km

• M1: 470,186 km (0.04 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.13 AU - 1.27 AU

Year: 475 Days

Day: 30.2 Hours

Environment

Temp: 19 °C

Axial Tilt: 3.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.36 AU - 1.4 AU

Year: 586 Days

Day: 38.7 Hours

Environment

Temp: -15 °C

Axial Tilt: 42.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 82,111,416 km

• M1: 712,834 km (0.093 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.38 AU - 1.88 AU

Year: 753 Days

Day: 25.3 Hours

Environment

Temp: -48 °C

Axial Tilt: 42.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 82,111,416 km

• M1: 110,852 km (0.101 R)
• M2: 208,390 km (0.105 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.84 AU - 2.8 AU

Year: 1278 Days

Day: 44.4 Hours

Environment

Temp: -73 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 11.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.7

Radius: 9.4

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 8.39 AU - 13.89 AU

Year: 13447 Days

Day: 5.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,111,416 km

• M1: 117,135 km (0.075 R)
• M2: 468,391 km (0.114 R)
• M3: 896,540 km (0.062 R)
• M4: 1,219,671 km (0.119 R)
• M5: 1,523,654 km (0.08 R)
• M6: 1,847,085 km (0.112 R)
• M7: 3,362,811 km (0.115 R)
• M8: 4,803,139 km (0.075 R)
• M9: 5,244,153 km (0.032 R)
• M10: 5,781,210 km (0.096 R)
• M11: 6,317,368 km (0.111 R)
• M12: 7,910,586 km (0.03 R)
• M13: 8,892,995 km (0.085 R)
• M14: 10,568,342 km (0.103 R)
• M15: 11,206,975 km (0.1 R)
• M16: 16,001,886 km (0.069 R)
• M17: 16,489,575 km (0.068 R)
• M18: 17,275,861 km (0.095 R)
• M19: 18,388,121 km (0.074 R)
• M20: 18,692,703 km (0.115 R)
• M21: 21,502,749 km (0.082 R)
• M22: 24,767,274 km (0.106 R)
• M23: 27,745,319 km (0.114 R)
• M24: 33,150,739 km (0.095 R)
• M25: 37,852,001 km (0.049 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.5

Radius: 10.8

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 10.28 AU - 13.26 AU

Year: 14603 Days

Day: 7.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,111,416 km

• M1: 134,339 km (0.045 R)
• M2: 517,309 km (0.064 R)
• M3: 889,958 km (0.061 R)
• M4: 1,266,047 km (0.117 R)
• M5: 1,853,817 km (0.071 R)
• M6: 2,483,325 km (0.111 R)
• M7: 2,897,112 km (0.087 R)
• M8: 5,287,836 km (0.11 R)
• M9: 5,702,521 km (0.116 R)
• M10: 6,057,816 km (0.081 R)
• M11: 6,512,295 km (0.079 R)
• M12: 10,533,485 km (0.101 R)
• M13: 12,723,897 km (0.079 R)
• M14: 14,391,166 km (0.111 R)
• M15: 21,946,756 km (0.055 R)
• M16: 28,577,681 km (0.065 R)
• M17: 29,976,421 km (0.093 R)
• M18: 30,333,063 km (0.117 R)
• M19: 36,974,909 km (0.099 R)
• M20: 38,075,800 km (0.079 R)
• M21: 40,487,916 km (0.094 R)
• M22: 41,805,275 km (0.071 R)
• M23: 43,000,113 km (0.113 R)
• M24: 44,217,540 km (0.112 R)
• M25: 64,741,321 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.6

Radius: 5.5

Gravity: 21.01 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 14.08 AU - 18.04 AU

Year: 23276 Days

Day: 19 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,111,416 km

• M1: 81,980 km (0.112 R)
• M2: 328,966 km (0.09 R)
• M3: 604,824 km (0.105 R)
• M4: 1,146,817 km (0.033 R)
• M5: 1,774,680 km (0.089 R)
• M6: 2,196,097 km (0.109 R)
• M7: 3,437,310 km (0.1 R)
• M8: 3,960,304 km (0.103 R)
• M9: 5,010,332 km (0.045 R)
• M10: 5,358,596 km (0.072 R)
• M11: 6,017,425 km (0.068 R)
• M12: 6,682,836 km (0.116 R)
• M13: 7,745,729 km (0.058 R)
• M14: 8,424,305 km (0.042 R)
• M15: 10,951,462 km (0.116 R)
• M16: 17,525,241 km (0.117 R)
• M17: 21,374,544 km (0.112 R)
• M18: 22,288,886 km (0.073 R)
• M19: 23,655,463 km (0.099 R)
• M20: 23,978,594 km (0.084 R)
• M21: 25,751,777 km (0.104 R)
• M22: 26,093,609 km (0.075 R)
• M23: 27,848,840 km (0.091 R)
• M24: 28,451,121 km (0.089 R)
• M25: 34,541,999 km (0.11 R)
• M26: 45,802,530 km (0.115 R)
• M27: 46,472,728 km (0.081 R)
• M28: 47,319,452 km (0.106 R)
• M29: 47,832,423 km (0.067 R)
• M30: 52,800,419 km (0.085 R)
• M31: 57,323,211 km (0.116 R)
• M32: 70,410,033 km (0.097 R)
• M33: 71,526,482 km (0.107 R)
• M34: 78,474,555 km (0.062 R)
• M35: 80,400,478 km (0.031 R)

Kuiper Belt

Range: 30.3 - 53.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 15,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit