🌌 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: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.53 AU - 0.59 AU

Year: 160 Days

Day: 20.9 Hours

Environment

Temp: 124 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 24,615,400 km

• M1: 198,516 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.74 AU - 0.84 AU

Year: 267 Days

Day: 45 Hours

Environment

Temp: 138 °C

Axial Tilt: 2.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.98 AU - 1.38 AU

Year: 488 Days

Day: 21.7 Hours

Environment

Temp: -9 °C

Axial Tilt: 24.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.05 AU - 1.33 AU

Year: 494 Days

Day: 17.9 Hours

Environment

Temp: -20 °C

Axial Tilt: 2.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 24,615,400 km

• M1: 506,987 km (0.054 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.05 AU - 1.43 AU

Year: 526 Days

Day: 23.1 Hours

Environment

Temp: -36 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.7 AU - 2.32 AU

Year: 1085 Days

Day: 24.5 Hours

Environment

Temp: -83 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.51 AU - 4.07 AU

Year: 2810 Days

Day: 27.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 24,615,400 km

• M1: 1,167,911 km (0.111 R)
• M2: 1,411,007 km (0.086 R)

Asteroid Belt

Center: 4.33 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.9

Radius: 13.9

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.44 AU - 5.3 AU

Year: 4093 Days

Day: 6.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 24,615,400 km

• M1: 213,327 km (0.11 R)
• M2: 514,317 km (0.085 R)
• M3: 922,720 km (0.107 R)
• M4: 1,113,607 km (0.051 R)
• M5: 1,227,301 km (0.111 R)
• M6: 1,358,498 km (0.07 R)
• M7: 1,466,957 km (0.115 R)
• M8: 1,796,222 km (0.068 R)
• M9: 2,213,151 km (0.115 R)
• M10: 2,921,946 km (0.083 R)
• M11: 3,010,807 km (0.083 R)
• M12: 3,100,715 km (0.086 R)
• M13: 3,394,675 km (0.09 R)
• M14: 3,488,323 km (0.111 R)
• M15: 3,583,019 km (0.095 R)
• M16: 4,109,154 km (0.097 R)
• M17: 4,722,506 km (0.112 R)
• M18: 4,827,523 km (0.059 R)
• M19: 5,061,494 km (0.115 R)
• M20: 5,233,981 km (0.062 R)
• M21: 5,408,561 km (0.074 R)
• M22: 5,651,658 km (0.107 R)
• M23: 5,785,847 km (0.064 R)
• M24: 6,057,367 km (0.091 R)
• M25: 6,263,812 km (0.038 R)
• M26: 6,731,156 km (0.104 R)
• M27: 7,137,165 km (0.036 R)
• M28: 7,258,189 km (0.097 R)
• M29: 7,625,153 km (0.102 R)
• M30: 8,124,212 km (0.09 R)
• M31: 8,301,335 km (0.099 R)
• M32: 8,556,699 km (0.099 R)
• M33: 8,711,084 km (0.054 R)
• M34: 8,918,576 km (0.03 R)
• M35: 9,259,061 km (0.056 R)
• M36: 9,550,627 km (0.115 R)
• M37: 9,953,046 km (0.117 R)
• M38: 10,115,509 km (0.115 R)
• M39: 10,388,525 km (0.068 R)
• M40: 10,636,109 km (0.113 R)
• M41: 11,306,308 km (0.092 R)
• M42: 11,504,375 km (0.107 R)
• M43: 11,703,490 km (0.048 R)
• M44: 11,817,933 km (0.102 R)
• M45: 12,658,074 km (0.115 R)
• M46: 12,834,450 km (0.11 R)
• M47: 13,070,665 km (0.084 R)
• M48: 13,517,664 km (0.077 R)
• M49: 14,487,955 km (0.068 R)
• M50: 14,950,512 km (0.098 R)
• M51: 15,827,006 km (0.098 R)
• M52: 16,623,764 km (0.113 R)
• M53: 17,140,475 km (0.085 R)
• M54: 17,270,476 km (0.105 R)
• M55: 17,433,537 km (0.103 R)
• M56: 18,222,965 km (0.092 R)
• M57: 18,889,723 km (0.077 R)
• M58: 18,990,552 km (0.059 R)
• M59: 19,158,700 km (0.094 R)
• M60: 19,564,709 km (0.075 R)
• M61: 19,700,544 km (0.074 R)
• M62: 19,973,410 km (0.11 R)
• M63: 20,281,731 km (0.114 R)
• M64: 22,235,928 km (0.092 R)
• M65: 22,377,897 km (0.114 R)
• M66: 22,841,052 km (0.116 R)
• M67: 23,271,445 km (0.049 R)
• M68: 23,451,561 km (0.066 R)
• M69: 24,031,103 km (0.066 R)
• M70: 24,322,669 km (0.094 R)
• M71: 24,578,781 km (0.114 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 11,829 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit