🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.41 AU - 0.63 AU

Year: 135 Days

Day: 21.6 Hours

Environment

Temp: 188 °C

Axial Tilt: 4.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.57 AU - 0.61 AU

Year: 163 Days

Day: 27.7 Hours

Environment

Temp: 243 °C

Axial Tilt: 21.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.68 AU - 0.78 AU

Year: 224 Days

Day: 18.7 Hours

Environment

Temp: 181 °C

Axial Tilt: 37 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.38 AU - 1.78 AU

Year: 715 Days

Day: 26.6 Hours

Environment

Temp: -31 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.13 AU - 2.29 AU

Year: 1182 Days

Day: 33.8 Hours

Environment

Temp: -62 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.09 AU - 2.57 AU

Year: 1280 Days

Day: 12.7 Hours

Environment

Temp: -80 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.36 AU - 2.86 AU

Year: 1518 Days

Day: 40.9 Hours

Environment

Temp: -96 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.69 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Terrestrial

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.75 AU - 4.79 AU

Year: 3749 Days

Day: 30.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.6

Radius: 11.9

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.65 AU - 5.55 AU

Year: 4145 Days

Day: 5.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 24,410,770 km

• M1: 154,086 km (0.11 R)
• M2: 261,647 km (0.108 R)
• M3: 371,900 km (0.088 R)
• M4: 460,911 km (0.104 R)
• M5: 666,459 km (0.108 R)
• M6: 759,957 km (0.087 R)
• M7: 858,393 km (0.039 R)
• M8: 938,427 km (0.095 R)
• M9: 1,131,409 km (0.115 R)
• M10: 1,207,404 km (0.044 R)
• M11: 1,515,426 km (0.119 R)
• M12: 1,600,099 km (0.059 R)
• M13: 1,759,421 km (0.104 R)
• M14: 2,157,351 km (0.085 R)
• M15: 2,237,236 km (0.042 R)
• M16: 2,416,454 km (0.064 R)
• M17: 2,737,491 km (0.088 R)
• M18: 2,859,264 km (0.107 R)
• M19: 3,090,243 km (0.094 R)
• M20: 3,199,001 km (0.032 R)
• M21: 3,570,901 km (0.113 R)
• M22: 3,917,519 km (0.074 R)
• M23: 4,015,805 km (0.12 R)
• M24: 4,417,027 km (0.112 R)
• M25: 4,768,432 km (0.099 R)
• M26: 5,193,440 km (0.068 R)
• M27: 6,240,026 km (0.111 R)
• M28: 6,424,630 km (0.108 R)
• M29: 6,564,355 km (0.085 R)
• M30: 7,157,061 km (0.1 R)
• M31: 7,350,491 km (0.107 R)
• M32: 7,816,638 km (0.075 R)
• M33: 7,915,971 km (0.067 R)
• M34: 8,267,078 km (0.061 R)
• M35: 8,572,257 km (0.118 R)
• M36: 8,881,027 km (0.114 R)
• M37: 9,115,148 km (0.027 R)
• M38: 9,272,226 km (0.11 R)
• M39: 9,722,515 km (0.12 R)
• M40: 10,206,913 km (0.083 R)
• M41: 10,671,714 km (0.083 R)
• M42: 10,892,969 km (0.101 R)
• M43: 11,537,287 km (0.095 R)
• M44: 11,707,380 km (0.074 R)
• M45: 12,165,149 km (0.09 R)
• M46: 12,338,384 km (0.074 R)
• M47: 13,039,250 km (0.105 R)
• M48: 13,903,477 km (0.062 R)
• M49: 15,312,090 km (0.097 R)
• M50: 15,405,589 km (0.084 R)
• M51: 15,530,353 km (0.043 R)
• M52: 15,844,060 km (0.038 R)
• M53: 16,128,296 km (0.109 R)
• M54: 16,541,635 km (0.073 R)
• M55: 17,184,457 km (0.078 R)
• M56: 17,509,084 km (0.035 R)
• M57: 17,704,758 km (0.075 R)
• M58: 17,835,507 km (0.083 R)
• M59: 17,999,616 km (0.109 R)
• M60: 18,594,267 km (0.111 R)
• M61: 18,727,260 km (0.07 R)
• M62: 19,532,096 km (0.099 R)
• M63: 20,006,770 km (0.086 R)
• M64: 20,657,072 km (0.103 R)
• M65: 20,760,445 km (0.102 R)
• M66: 21,523,394 km (0.114 R)
• M67: 21,908,309 km (0.107 R)
• M68: 22,295,468 km (0.1 R)
• M69: 23,362,999 km (0.097 R)

Kuiper Belt

Range: 30.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 19,795 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit