🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.56 AU - 0.9 AU

Year: 227 Days

Day: 38.5 Hours

Environment

Temp: 182 °C

Axial Tilt: 18.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 24,660,946 km

• M1: 73,004 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.88 AU - 1.26 AU

Year: 402 Days

Day: 23 Hours

Environment

Temp: 26 °C

Axial Tilt: 23.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.95 AU - 1.19 AU

Year: 402 Days

Day: 27.7 Hours

Environment

Temp: 13 °C

Axial Tilt: 39.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.62 AU - 2.24 AU

Year: 974 Days

Day: 40.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,660,946 km

• M1: 391,647 km (0.087 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.61 AU - 2.29 AU

Year: 990 Days

Day: 25.9 Hours

Environment

Temp: -64 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.2

Radius: 12.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 8.95 AU - 9.63 AU

Year: 10291 Days

Day: 10.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 24,660,946 km

• M1: 181,761 km (0.107 R)
• M2: 427,102 km (0.113 R)
• M3: 549,024 km (0.085 R)
• M4: 684,859 km (0.094 R)
• M5: 802,892 km (0.087 R)
• M6: 1,183,020 km (0.109 R)
• M7: 1,617,303 km (0.117 R)
• M8: 1,821,504 km (0.034 R)
• M9: 2,438,445 km (0.1 R)
• M10: 2,917,009 km (0.115 R)
• M11: 3,116,722 km (0.11 R)
• M12: 3,556,390 km (0.108 R)
• M13: 4,351,503 km (0.04 R)
• M14: 4,580,537 km (0.12 R)
• M15: 5,505,202 km (0.086 R)
• M16: 6,036,573 km (0.062 R)
• M17: 6,195,895 km (0.093 R)
• M18: 6,947,475 km (0.057 R)
• M19: 7,589,998 km (0.106 R)
• M20: 7,762,185 km (0.079 R)
• M21: 8,145,903 km (0.078 R)
• M22: 8,967,944 km (0.1 R)
• M23: 9,077,150 km (0.116 R)
• M24: 9,260,258 km (0.088 R)
• M25: 9,779,063 km (0.105 R)
• M26: 10,767,905 km (0.089 R)
• M27: 10,961,784 km (0.116 R)
• M28: 11,828,255 km (0.093 R)
• M29: 14,047,539 km (0.047 R)
• M30: 14,600,603 km (0.112 R)
• M31: 14,901,444 km (0.102 R)
• M32: 15,640,607 km (0.097 R)
• M33: 17,381,178 km (0.109 R)
• M34: 17,700,121 km (0.118 R)
• M35: 18,389,917 km (0.037 R)
• M36: 19,135,512 km (0.12 R)
• M37: 19,701,292 km (0.077 R)
• M38: 20,033,848 km (0.063 R)
• M39: 20,752,665 km (0.119 R)
• M40: 20,945,796 km (0.074 R)
• M41: 21,479,861 km (0.066 R)
• M42: 21,577,548 km (0.108 R)
• M43: 21,675,235 km (0.096 R)
• M44: 22,166,216 km (0.101 R)
• M45: 22,264,950 km (0.097 R)
• M46: 24,268,215 km (0.071 R)
• M47: 24,369,942 km (0.101 R)
• M48: 24,624,707 km (0.091 R)
• M49: 25,652,893 km (0.053 R)
• M50: 26,120,087 km (0.092 R)
• M51: 26,485,555 km (0.075 R)
• M52: 28,123,801 km (0.071 R)
• M53: 28,391,133 km (0.109 R)
• M54: 28,713,067 km (0.096 R)
• M55: 29,577,444 km (0.119 R)
• M56: 30,285,939 km (0.031 R)
• M57: 31,276,277 km (0.097 R)
• M58: 31,775,485 km (0.067 R)
• M59: 32,165,487 km (0.037 R)
• M60: 33,741,650 km (0.09 R)
• M61: 34,768,041 km (0.105 R)
• M62: 34,940,079 km (0.086 R)
• M63: 35,515,731 km (0.094 R)
• M64: 36,152,569 km (0.106 R)
• M65: 36,385,045 km (0.099 R)
• M66: 36,501,432 km (0.101 R)
• M67: 36,676,312 km (0.051 R)
• M68: 37,261,389 km (0.111 R)
• M69: 37,731,575 km (0.056 R)
• M70: 38,203,706 km (0.106 R)
• M71: 39,034,722 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 11.6

Radius: 3

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 14.46 AU - 22.06 AU

Year: 28358 Days

Day: 23.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 24,660,946 km

• M1: 41,289 km (0.099 R)
• M2: 91,853 km (0.112 R)
• M3: 123,269 km (0.042 R)
• M4: 191,635 km (0.119 R)
• M5: 1,657,694 km (0.11 R)
• M6: 2,878,263 km (0.034 R)
• M7: 3,041,624 km (0.08 R)
• M8: 3,434,468 km (0.064 R)
• M9: 4,854,601 km (0.109 R)
• M10: 5,092,312 km (0.096 R)
• M11: 5,157,835 km (0.114 R)
• M12: 7,297,683 km (0.074 R)
• M13: 8,302,831 km (0.103 R)
• M14: 11,567,207 km (0.101 R)
• M15: 15,300,870 km (0.119 R)
• M16: 15,426,981 km (0.064 R)
• M17: 15,935,016 km (0.097 R)
• M18: 19,984,480 km (0.107 R)
• M19: 20,087,852 km (0.089 R)
• M20: 20,468,429 km (0.075 R)
• M21: 21,943,464 km (0.12 R)
• M22: 23,162,238 km (0.071 R)

Kuiper Belt

Range: 30.2 - 47.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 16,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit