🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.53 AU - 0.65 AU

Year: 170 Days

Day: 40.7 Hours

Environment

Temp: 183 °C

Axial Tilt: 28.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 17,552,919 km

• M1: 46,076 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.72 AU - 0.78 AU

Year: 243 Days

Day: 44.9 Hours

Environment

Temp: 131 °C

Axial Tilt: 8.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 17,552,919 km

• M1: 202,705 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.89 AU - 1.03 AU

Year: 352 Days

Day: 44.2 Hours

Environment

Temp: 20 °C

Axial Tilt: 29.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.02 AU - 1.1 AU

Year: 409 Days

Day: 25.8 Hours

Environment

Temp: -3 °C

Axial Tilt: 36.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.17 AU - 1.23 AU

Year: 493 Days

Day: 44.4 Hours

Environment

Temp: -7 °C

Axial Tilt: 46.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.17 AU - 1.89 AU

Year: 709 Days

Day: 20 Hours

Environment

Temp: -43 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 17,552,919 km

• M1: 438,920 km (0.117 R)
• M2: 485,146 km (0.097 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.66 AU - 4.3 AU

Year: 2975 Days

Day: 37.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 27.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.2

Radius: 8.8

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.02 AU - 4.92 AU

Year: 3542 Days

Day: 12 Hours

Environment

Temp: -130 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 17,552,919 km

• M1: 138,378 km (0.088 R)
• M2: 405,261 km (0.114 R)
• M3: 557,102 km (0.048 R)
• M4: 702,960 km (0.072 R)
• M5: 798,553 km (0.104 R)
• M6: 1,163,572 km (0.082 R)
• M7: 1,267,992 km (0.084 R)
• M8: 1,386,473 km (0.102 R)
• M9: 1,508,695 km (0.08 R)
• M10: 1,565,542 km (0.116 R)
• M11: 1,848,431 km (0.114 R)
• M12: 2,109,330 km (0.115 R)
• M13: 2,198,939 km (0.105 R)
• M14: 2,329,239 km (0.062 R)
• M15: 2,556,628 km (0.057 R)
• M16: 2,624,994 km (0.101 R)
• M17: 2,833,533 km (0.076 R)
• M18: 2,932,866 km (0.086 R)
• M19: 3,431,177 km (0.061 R)
• M20: 3,491,614 km (0.092 R)
• M21: 3,613,537 km (0.03 R)
• M22: 3,721,397 km (0.111 R)
• M23: 4,325,174 km (0.034 R)
• M24: 4,756,016 km (0.099 R)
• M25: 4,823,484 km (0.081 R)
• M26: 5,114,003 km (0.113 R)
• M27: 5,270,183 km (0.113 R)
• M28: 5,410,207 km (0.047 R)
• M29: 5,587,181 km (0.091 R)
• M30: 5,676,342 km (0.066 R)
• M31: 5,747,999 km (0.048 R)
• M32: 5,837,907 km (0.085 R)
• M33: 6,129,174 km (0.114 R)
• M34: 6,481,328 km (0.084 R)
• M35: 6,593,825 km (0.115 R)
• M36: 6,669,223 km (0.088 R)
• M37: 7,635,775 km (0.069 R)
• M38: 7,894,280 km (0.096 R)
• M39: 8,317,941 km (0.092 R)
• M40: 8,728,437 km (0.076 R)
• M41: 8,873,547 km (0.107 R)
• M42: 9,419,879 km (0.112 R)
• M43: 9,526,243 km (0.08 R)
• M44: 9,804,495 km (0.073 R)
• M45: 10,042,206 km (0.086 R)
• M46: 10,107,281 km (0.093 R)
• M47: 10,172,506 km (0.108 R)
• M48: 10,369,227 km (0.104 R)
• M49: 10,457,041 km (0.112 R)
• M50: 10,744,119 km (0.108 R)
• M51: 10,877,560 km (0.06 R)
• M52: 11,168,528 km (0.096 R)
• M53: 11,371,383 km (0.104 R)
• M54: 11,712,316 km (0.055 R)
• M55: 12,010,465 km (0.065 R)
• M56: 12,637,879 km (0.108 R)
• M57: 13,466,800 km (0.065 R)
• M58: 14,411,212 km (0.104 R)
• M59: 14,607,484 km (0.102 R)
• M60: 14,978,188 km (0.117 R)
• M61: 15,376,866 km (0.103 R)
• M62: 15,502,079 km (0.117 R)
• M63: 15,854,831 km (0.12 R)
• M64: 15,930,677 km (0.117 R)
• M65: 16,159,263 km (0.059 R)
• M66: 16,261,139 km (0.074 R)
• M67: 16,980,406 km (0.063 R)
• M68: 17,474,527 km (0.092 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 14,868 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit