🌌 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: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.51 AU - 0.59 AU

Year: 147 Days

Day: 35.5 Hours

Environment

Temp: 218 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 28,870,577 km

• M1: 279,598 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.48 AU - 0.64 AU

Year: 151 Days

Day: 38.6 Hours

Environment

Temp: 194 °C

Axial Tilt: 12.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.83 AU - 0.87 AU

Year: 282 Days

Day: 13.5 Hours

Environment

Temp: 151 °C

Axial Tilt: 28.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 28,870,577 km

• M1: 408,402 km (0.095 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.98 AU - 1.14 AU

Year: 393 Days

Day: 37.1 Hours

Environment

Temp: 15 °C

Axial Tilt: 7.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.22 AU - 2.9 AU

Year: 1474 Days

Day: 20.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.37 AU - 3.53 AU

Year: 1823 Days

Day: 41.6 Hours

Environment

Temp: -106 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.8 AU - 5.16 AU

Year: 3413 Days

Day: 16.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,870,577 km

• M1: 1,960,330 km (0.08 R)

Asteroid Belt

Center: 6.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.4

Radius: 8.6

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.58 AU - 8.98 AU

Year: 7810 Days

Day: 5.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 28,870,577 km

• M1: 107,860 km (0.045 R)
• M2: 188,344 km (0.115 R)
• M3: 287,228 km (0.106 R)
• M4: 519,105 km (0.103 R)
• M5: 745,596 km (0.105 R)
• M6: 819,796 km (0.117 R)
• M7: 909,555 km (0.105 R)
• M8: 1,043,894 km (0.099 R)
• M9: 1,142,030 km (0.075 R)
• M10: 1,502,112 km (0.112 R)
• M11: 1,744,610 km (0.056 R)
• M12: 2,267,006 km (0.089 R)
• M13: 2,622,002 km (0.07 R)
• M14: 3,115,675 km (0.087 R)
• M15: 3,383,754 km (0.099 R)
• M16: 3,510,015 km (0.118 R)
• M17: 3,964,344 km (0.058 R)
• M18: 4,323,079 km (0.052 R)
• M19: 4,951,989 km (0.1 R)
• M20: 5,047,582 km (0.108 R)
• M21: 5,216,328 km (0.102 R)
• M22: 5,485,455 km (0.056 R)
• M23: 5,734,086 km (0.106 R)
• M24: 6,037,321 km (0.086 R)
• M25: 6,190,958 km (0.106 R)
• M26: 7,520,435 km (0.066 R)
• M27: 7,992,117 km (0.078 R)
• M28: 9,139,383 km (0.084 R)
• M29: 9,256,967 km (0.094 R)
• M30: 9,315,908 km (0.099 R)
• M31: 9,972,942 km (0.083 R)
• M32: 10,033,380 km (0.1 R)
• M33: 10,429,365 km (0.11 R)
• M34: 10,830,437 km (0.119 R)
• M35: 11,111,232 km (0.119 R)
• M36: 11,457,551 km (0.114 R)
• M37: 11,584,261 km (0.044 R)
• M38: 11,999,694 km (0.107 R)
• M39: 12,746,636 km (0.083 R)
• M40: 12,911,044 km (0.117 R)
• M41: 13,175,384 km (0.111 R)
• M42: 13,475,028 km (0.043 R)
• M43: 14,013,281 km (0.107 R)
• M44: 14,081,199 km (0.089 R)
• M45: 14,627,381 km (0.099 R)
• M46: 15,424,588 km (0.095 R)
• M47: 15,564,611 km (0.07 R)
• M48: 15,810,849 km (0.065 R)
• M49: 15,952,219 km (0.102 R)
• M50: 16,521,439 km (0.11 R)
• M51: 16,844,571 km (0.086 R)
• M52: 17,024,986 km (0.094 R)
• M53: 17,097,241 km (0.114 R)
• M54: 18,047,188 km (0.111 R)
• M55: 18,268,742 km (0.101 R)
• M56: 18,602,944 km (0.064 R)
• M57: 18,752,093 km (0.105 R)
• M58: 19,126,836 km (0.096 R)
• M59: 19,390,427 km (0.091 R)
• M60: 19,466,124 km (0.097 R)
• M61: 19,731,361 km (0.104 R)
• M62: 20,188,831 km (0.069 R)
• M63: 20,418,913 km (0.096 R)
• M64: 21,075,647 km (0.056 R)
• M65: 21,896,341 km (0.083 R)
• M66: 22,608,128 km (0.113 R)
• M67: 22,687,714 km (0.089 R)
• M68: 23,207,118 km (0.114 R)
• M69: 24,665,697 km (0.083 R)
• M70: 24,870,646 km (0.085 R)
• M71: 25,035,054 km (0.099 R)
• M72: 25,945,507 km (0.046 R)
• M73: 26,112,159 km (0.092 R)
• M74: 27,416,203 km (0.117 R)
• M75: 27,585,997 km (0.099 R)
• M76: 28,827,510 km (0.095 R)

Kuiper Belt

Range: 30.5 - 58.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 17,973 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit