🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.54 AU - 0.82 AU

Year: 215 Days

Day: 41.2 Hours

Environment

Temp: 166 °C

Axial Tilt: 19.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 19,685,615 km

• M1: 175,329 km (0.087 R)
• M2: 315,502 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.87 AU - 0.99 AU

Year: 343 Days

Day: 14.6 Hours

Environment

Temp: 19 °C

Axial Tilt: 5.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 19,685,615 km

• M1: 124,316 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.9 AU - 1.16 AU

Year: 400 Days

Day: 33.5 Hours

Environment

Temp: -1 °C

Axial Tilt: 13.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.19 AU - 1.85 AU

Year: 718 Days

Day: 12.8 Hours

Environment

Temp: -45 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,685,615 km

• M1: 685,308 km (0.072 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.76 AU - 1.96 AU

Year: 971 Days

Day: 35.2 Hours

Environment

Temp: -77 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,685,615 km

• M1: 200,760 km (0.035 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.14 AU - 4.04 AU

Year: 2604 Days

Day: 24.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.26 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.6

Radius: 13.3

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.21 AU - 5.65 AU

Year: 4191 Days

Day: 11.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 19,685,615 km

• M1: 177,573 km (0.067 R)
• M2: 281,842 km (0.108 R)
• M3: 397,332 km (0.086 R)
• M4: 522,545 km (0.06 R)
• M5: 648,956 km (0.066 R)
• M6: 973,733 km (0.119 R)
• M7: 1,077,703 km (0.084 R)
• M8: 1,165,667 km (0.111 R)
• M9: 1,308,084 km (0.084 R)
• M10: 1,782,608 km (0.115 R)
• M11: 2,058,168 km (0.113 R)
• M12: 2,220,182 km (0.114 R)
• M13: 2,347,789 km (0.095 R)
• M14: 2,650,725 km (0.072 R)
• M15: 2,924,788 km (0.114 R)
• M16: 3,122,108 km (0.069 R)
• M17: 3,338,576 km (0.094 R)
• M18: 3,725,735 km (0.098 R)
• M19: 3,817,139 km (0.118 R)
• M20: 3,924,700 km (0.1 R)
• M21: 4,756,165 km (0.089 R)
• M22: 5,175,039 km (0.072 R)
• M23: 5,817,113 km (0.075 R)
• M24: 6,192,753 km (0.082 R)
• M25: 7,328,800 km (0.064 R)
• M26: 8,609,208 km (0.105 R)
• M27: 8,812,362 km (0.05 R)
• M28: 8,914,537 km (0.098 R)
• M29: 9,473,136 km (0.098 R)
• M30: 9,556,761 km (0.102 R)
• M31: 9,915,347 km (0.095 R)
• M32: 10,515,683 km (0.096 R)
• M33: 10,733,049 km (0.088 R)
• M34: 10,951,761 km (0.054 R)
• M35: 11,039,724 km (0.041 R)
• M36: 11,886,897 km (0.116 R)
• M37: 12,067,911 km (0.054 R)
• M38: 12,708,788 km (0.114 R)
• M39: 13,714,385 km (0.07 R)
• M40: 13,999,668 km (0.107 R)
• M41: 14,334,917 km (0.1 R)
• M42: 14,455,343 km (0.086 R)
• M43: 14,745,563 km (0.119 R)
• M44: 14,842,802 km (0.093 R)
• M45: 15,405,888 km (0.097 R)
• M46: 16,729,979 km (0.037 R)
• M47: 17,213,479 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.3

Radius: 12.1

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.05 AU - 6.13 AU

Year: 5754 Days

Day: 13.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 19,685,615 km

• M1: 179,368 km (0.094 R)
• M2: 273,016 km (0.119 R)
• M3: 368,908 km (0.112 R)
• M4: 512,223 km (0.092 R)
• M5: 600,785 km (0.105 R)
• M6: 731,534 km (0.084 R)
• M7: 843,882 km (0.07 R)
• M8: 1,066,184 km (0.111 R)
• M9: 1,184,815 km (0.096 R)
• M10: 1,262,756 km (0.07 R)
• M11: 1,342,641 km (0.1 R)
• M12: 1,435,990 km (0.07 R)
• M13: 1,568,384 km (0.058 R)
• M14: 1,679,834 km (0.107 R)
• M15: 2,361,702 km (0.099 R)
• M16: 2,534,038 km (0.101 R)
• M17: 2,891,128 km (0.067 R)
• M18: 3,075,882 km (0.078 R)
• M19: 3,185,537 km (0.086 R)
• M20: 3,264,674 km (0.059 R)
• M21: 3,820,131 km (0.118 R)
• M22: 3,955,218 km (0.054 R)
• M23: 4,109,154 km (0.044 R)
• M24: 4,458,316 km (0.097 R)
• M25: 4,636,487 km (0.088 R)
• M26: 4,780,849 km (0.111 R)
• M27: 4,963,358 km (0.093 R)
• M28: 5,639,541 km (0.087 R)
• M29: 5,716,583 km (0.104 R)
• M30: 6,027,897 km (0.094 R)
• M31: 6,106,585 km (0.036 R)
• M32: 6,485,217 km (0.095 R)
• M33: 6,912,618 km (0.08 R)
• M34: 7,181,895 km (0.118 R)
• M35: 7,602,863 km (0.07 R)
• M36: 7,880,816 km (0.114 R)
• M37: 8,031,910 km (0.094 R)
• M38: 8,140,368 km (0.09 R)
• M39: 8,402,912 km (0.086 R)
• M40: 8,623,719 km (0.035 R)
• M41: 8,757,160 km (0.051 R)
• M42: 9,048,577 km (0.069 R)
• M43: 9,161,523 km (0.102 R)
• M44: 9,297,807 km (0.115 R)
• M45: 9,572,169 km (0.069 R)
• M46: 9,756,624 km (0.068 R)
• M47: 10,269,894 km (0.084 R)
• M48: 10,720,333 km (0.096 R)
• M49: 10,839,862 km (0.109 R)
• M50: 11,249,909 km (0.085 R)
• M51: 11,395,917 km (0.097 R)
• M52: 11,689,727 km (0.091 R)
• M53: 11,862,214 km (0.097 R)
• M54: 11,985,931 km (0.068 R)
• M55: 12,259,695 km (0.085 R)
• M56: 12,611,250 km (0.119 R)
• M57: 12,788,224 km (0.096 R)
• M58: 12,965,947 km (0.103 R)
• M59: 13,763,303 km (0.062 R)
• M60: 13,945,663 km (0.09 R)
• M61: 14,181,130 km (0.098 R)
• M62: 15,432,367 km (0.117 R)
• M63: 15,866,500 km (0.044 R)
• M64: 16,139,815 km (0.054 R)
• M65: 16,497,354 km (0.055 R)
• M66: 16,885,560 km (0.12 R)
• M67: 16,997,011 km (0.105 R)
• M68: 17,388,957 km (0.114 R)
• M69: 17,473,330 km (0.104 R)
• M70: 17,670,800 km (0.108 R)
• M71: 17,840,593 km (0.079 R)
• M72: 18,669,066 km (0.119 R)
• M73: 19,276,882 km (0.085 R)
• M74: 19,510,106 km (0.104 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 15,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit