🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.67 AU - 0.71 AU

Year: 211 Days

Day: 20 Hours

Environment

Temp: 140 °C

Axial Tilt: 31.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 84,041,601 km

• M1: 230,830 km (0.095 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.97 AU - 1.37 AU

Year: 467 Days

Day: 18.7 Hours

Environment

Temp: 3 °C

Axial Tilt: 39.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 84,041,601 km

• M1: 393,592 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.26 AU - 3.66 AU

Year: 1879 Days

Day: 22.3 Hours

Environment

Temp: -95 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,041,601 km

• M1: 1,314,068 km (0.068 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.33 AU - 5.09 AU

Year: 3187 Days

Day: 26.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 47.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986

Radius: 15

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 6.86 AU - 7.38 AU

Year: 7010 Days

Day: 8.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,041,601 km

• M1: 186,549 km (0.108 R)
• M2: 1,140,085 km (0.07 R)
• M3: 1,917,396 km (0.069 R)
• M4: 3,336,781 km (0.077 R)
• M5: 4,218,211 km (0.1 R)
• M6: 4,859,537 km (0.111 R)
• M7: 5,727,953 km (0.071 R)
• M8: 7,455,509 km (0.116 R)
• M9: 9,416,887 km (0.117 R)
• M10: 10,173,852 km (0.081 R)
• M11: 11,385,146 km (0.041 R)
• M12: 11,917,565 km (0.091 R)
• M13: 16,189,631 km (0.056 R)
• M14: 19,222,578 km (0.095 R)
• M15: 20,991,723 km (0.11 R)
• M16: 25,298,346 km (0.035 R)
• M17: 26,669,411 km (0.119 R)
• M18: 27,420,691 km (0.057 R)
• M19: 29,064,024 km (0.11 R)
• M20: 29,960,115 km (0.11 R)
• M21: 31,703,080 km (0.106 R)
• M22: 33,948,394 km (0.049 R)
• M23: 34,608,869 km (0.103 R)
• M24: 39,596,612 km (0.102 R)
• M25: 40,205,924 km (0.094 R)
• M26: 40,821,669 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90

Radius: 8.8

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.9 AU - 8.24 AU

Year: 8458 Days

Day: 10.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,041,601 km

• M1: 109,506 km (0.071 R)
• M2: 409,150 km (0.101 R)
• M3: 768,035 km (0.06 R)
• M4: 1,385,875 km (0.089 R)
• M5: 1,906,774 km (0.111 R)
• M6: 2,332,231 km (0.101 R)
• M7: 5,403,625 km (0.026 R)
• M8: 5,820,704 km (0.075 R)
• M9: 6,778,579 km (0.11 R)
• M10: 8,932,339 km (0.094 R)
• M11: 9,666,117 km (0.092 R)
• M12: 11,633,628 km (0.06 R)
• M13: 19,961,891 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 634.4

Radius: 6.2

Gravity: 16.5 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 13.07 AU - 19.39 AU

Year: 24124 Days

Day: 18.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 84,041,601 km

• M1: 77,342 km (0.078 R)
• M2: 354,846 km (0.086 R)
• M3: 854,653 km (0.115 R)
• M4: 1,267,094 km (0.027 R)
• M5: 1,657,395 km (0.117 R)
• M6: 1,861,746 km (0.109 R)
• M7: 2,676,605 km (0.063 R)
• M8: 3,290,704 km (0.111 R)
• M9: 4,684,358 km (0.102 R)
• M10: 5,737,976 km (0.094 R)
• M11: 6,940,892 km (0.105 R)
• M12: 7,526,119 km (0.1 R)
• M13: 8,628,656 km (0.063 R)
• M14: 10,447,167 km (0.115 R)
• M15: 10,890,725 km (0.06 R)
• M16: 19,417,953 km (0.05 R)
• M17: 23,997,742 km (0.117 R)
• M18: 27,420,991 km (0.051 R)
• M19: 28,264,124 km (0.045 R)
• M20: 31,416,750 km (0.074 R)
• M21: 32,740,691 km (0.067 R)
• M22: 33,145,054 km (0.092 R)
• M23: 33,552,708 km (0.066 R)
• M24: 35,783,811 km (0.041 R)
• M25: 36,069,393 km (0.106 R)
• M26: 40,538,779 km (0.07 R)
• M27: 41,474,813 km (0.12 R)
• M28: 42,745,348 km (0.041 R)
• M29: 44,864,701 km (0.118 R)
• M30: 45,196,957 km (0.065 R)
• M31: 48,784,314 km (0.096 R)
• M32: 51,460,022 km (0.04 R)
• M33: 53,297,084 km (0.119 R)
• M34: 56,713,301 km (0.115 R)
• M35: 59,269,480 km (0.114 R)
• M36: 60,272,683 km (0.03 R)
• M37: 62,519,643 km (0.058 R)
• M38: 72,979,376 km (0.119 R)
• M39: 77,661,191 km (0.114 R)
• M40: 80,075,402 km (0.051 R)
• M41: 81,054,969 km (0.088 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 10,421 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit