🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.5 AU - 0.66 AU

Year: 166 Days

Day: 42.8 Hours

Environment

Temp: 127 °C

Axial Tilt: 22.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.61 AU - 0.87 AU

Year: 239 Days

Day: 46.1 Hours

Environment

Temp: 179 °C

Axial Tilt: 35.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.59 AU - 0.93 AU

Year: 248 Days

Day: 44.8 Hours

Environment

Temp: 119 °C

Axial Tilt: 42.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 41,613,552 km

• M1: 175,030 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.78 AU - 1.16 AU

Year: 358 Days

Day: 32.5 Hours

Environment

Temp: 16 °C

Axial Tilt: 15.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.26 AU - 1.52 AU

Year: 614 Days

Day: 47 Hours

Environment

Temp: -35 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.13 AU - 1.73 AU

Year: 641 Days

Day: 39.1 Hours

Environment

Temp: -34 °C

Axial Tilt: 130.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 41,613,552 km

• M1: 174,132 km (0.089 R)
• M2: 475,272 km (0.111 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.21 AU - 1.71 AU

Year: 661 Days

Day: 22.7 Hours

Environment

Temp: -40 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.19 AU - 1.91 AU

Year: 723 Days

Day: 38.2 Hours

Environment

Temp: -51 °C

Axial Tilt: 8.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,613,552 km

• M1: 785,987 km (0.03 R)

Asteroid Belt

Center: 4.2 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.4

Radius: 10

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 6.73 AU - 6.95 AU

Year: 6704 Days

Day: 11.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 41,613,552 km

• M1: 128,056 km (0.107 R)
• M2: 224,546 km (0.117 R)
• M3: 533,616 km (0.099 R)
• M4: 659,577 km (0.041 R)
• M5: 796,160 km (0.105 R)
• M6: 1,010,833 km (0.046 R)
• M7: 1,152,502 km (0.068 R)
• M8: 1,263,354 km (0.098 R)
• M9: 1,456,036 km (0.062 R)
• M10: 1,576,462 km (0.108 R)
• M11: 1,827,488 km (0.039 R)
• M12: 2,091,528 km (0.089 R)
• M13: 2,462,680 km (0.063 R)
• M14: 2,879,909 km (0.104 R)
• M15: 3,863,066 km (0.086 R)
• M16: 4,117,083 km (0.034 R)
• M17: 4,493,471 km (0.107 R)
• M18: 4,611,504 km (0.094 R)
• M19: 4,730,733 km (0.097 R)
• M20: 5,848,379 km (0.066 R)
• M21: 6,075,020 km (0.074 R)
• M22: 6,304,503 km (0.098 R)
• M23: 6,370,476 km (0.074 R)
• M24: 6,503,468 km (0.03 R)
• M25: 7,459,399 km (0.113 R)
• M26: 7,811,402 km (0.107 R)
• M27: 8,096,985 km (0.1 R)
• M28: 8,277,250 km (0.05 R)
• M29: 8,789,025 km (0.102 R)
• M30: 8,974,227 km (0.053 R)
• M31: 9,462,065 km (0.097 R)
• M32: 9,766,497 km (0.066 R)
• M33: 10,581,057 km (0.103 R)
• M34: 10,936,801 km (0.075 R)
• M35: 11,417,309 km (0.1 R)
• M36: 11,538,633 km (0.101 R)
• M37: 11,863,859 km (0.071 R)
• M38: 12,481,998 km (0.108 R)
• M39: 12,606,912 km (0.069 R)
• M40: 12,732,275 km (0.117 R)
• M41: 13,365,074 km (0.035 R)
• M42: 13,835,559 km (0.118 R)
• M43: 14,881,099 km (0.064 R)
• M44: 15,457,948 km (0.119 R)
• M45: 15,592,137 km (0.07 R)
• M46: 17,325,079 km (0.082 R)
• M47: 17,697,727 km (0.098 R)
• M48: 17,791,226 km (0.099 R)
• M49: 18,974,545 km (0.096 R)
• M50: 20,920,365 km (0.112 R)
• M51: 21,068,766 km (0.1 R)
• M52: 21,366,765 km (0.093 R)
• M53: 22,118,045 km (0.067 R)
• M54: 22,370,267 km (0.102 R)
• M55: 22,725,113 km (0.097 R)
• M56: 23,184,080 km (0.059 R)
• M57: 24,370,989 km (0.091 R)
• M58: 25,155,630 km (0.07 R)
• M59: 25,313,456 km (0.116 R)
• M60: 26,964,717 km (0.037 R)
• M61: 27,126,283 km (0.116 R)
• M62: 28,925,496 km (0.093 R)
• M63: 30,425,963 km (0.1 R)
• M64: 31,610,479 km (0.08 R)
• M65: 32,065,705 km (0.111 R)
• M66: 32,465,879 km (0.085 R)
• M67: 32,925,145 km (0.111 R)
• M68: 34,082,733 km (0.097 R)
• M69: 34,666,614 km (0.071 R)
• M70: 34,783,749 km (0.095 R)
• M71: 35,725,767 km (0.066 R)
• M72: 37,875,787 km (0.043 R)
• M73: 38,117,238 km (0.093 R)
• M74: 38,480,462 km (0.078 R)
• M75: 38,601,786 km (0.096 R)
• M76: 38,905,619 km (0.115 R)
• M77: 39,027,392 km (0.077 R)
• M78: 40,067,546 km (0.025 R)
• M79: 40,190,366 km (0.08 R)
• M80: 40,498,388 km (0.092 R)
• M81: 40,868,941 km (0.059 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 12,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit