🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.82 AU - 0.92 AU

Year: 296 Days

Day: 26 Hours

Environment

Temp: 129 °C

Axial Tilt: 26.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.67 AU - 1.11 AU

Year: 307 Days

Day: 17.9 Hours

Environment

Temp: 143 °C

Axial Tilt: 1.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.8 AU - 1.06 AU

Year: 328 Days

Day: 22.2 Hours

Environment

Temp: 142 °C

Axial Tilt: 5.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.08 AU - 4.54 AU

Year: 3268 Days

Day: 30.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.6

Radius: 9.4

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.04 AU - 5.74 AU

Year: 3950 Days

Day: 11.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 85,374,034 km

• M1: 119,828 km (0.062 R)
• M2: 447,746 km (0.116 R)
• M3: 898,634 km (0.069 R)
• M4: 1,394,851 km (0.105 R)
• M5: 2,436,052 km (0.09 R)
• M6: 4,289,121 km (0.109 R)
• M7: 4,870,607 km (0.053 R)
• M8: 5,531,082 km (0.108 R)
• M9: 5,868,874 km (0.102 R)
• M10: 6,280,268 km (0.103 R)
• M11: 7,326,556 km (0.03 R)
• M12: 7,908,940 km (0.113 R)
• M13: 8,708,242 km (0.078 R)
• M14: 9,050,372 km (0.119 R)
• M15: 10,594,820 km (0.096 R)
• M16: 11,611,039 km (0.078 R)
• M17: 12,166,346 km (0.09 R)
• M18: 14,146,124 km (0.102 R)
• M19: 15,049,247 km (0.052 R)
• M20: 16,217,456 km (0.076 R)
• M21: 16,970,233 km (0.11 R)
• M22: 17,806,784 km (0.12 R)
• M23: 18,235,232 km (0.091 R)
• M24: 18,670,562 km (0.09 R)
• M25: 19,176,502 km (0.065 R)
• M26: 20,083,963 km (0.115 R)
• M27: 21,636,490 km (0.094 R)
• M28: 21,984,305 km (0.11 R)
• M29: 22,978,233 km (0.077 R)
• M30: 24,751,117 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.3

Radius: 8.6

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.85 AU - 9.65 AU

Year: 9454 Days

Day: 9.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 99.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 85,374,034 km

• M1: 107,561 km (0.061 R)
• M2: 455,675 km (0.088 R)
• M3: 733,179 km (0.065 R)
• M4: 1,453,792 km (0.104 R)
• M5: 1,750,744 km (0.069 R)
• M6: 2,281,068 km (0.056 R)
• M7: 3,099,668 km (0.102 R)
• M8: 3,876,978 km (0.12 R)
• M9: 4,194,126 km (0.114 R)
• M10: 4,727,592 km (0.119 R)
• M11: 5,011,080 km (0.095 R)
• M12: 5,640,438 km (0.08 R)
• M13: 7,740,493 km (0.095 R)
• M14: 8,208,435 km (0.101 R)
• M15: 9,004,146 km (0.095 R)
• M16: 11,468,771 km (0.066 R)
• M17: 13,666,962 km (0.056 R)
• M18: 14,032,430 km (0.085 R)
• M19: 15,844,359 km (0.098 R)
• M20: 16,422,854 km (0.098 R)
• M21: 17,195,826 km (0.103 R)
• M22: 17,993,033 km (0.067 R)
• M23: 19,397,758 km (0.072 R)
• M24: 21,429,147 km (0.053 R)
• M25: 24,736,008 km (0.081 R)
• M26: 27,038,618 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.8

Radius: 10.1

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 11.75 AU - 12.55 AU

Year: 15469 Days

Day: 10.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,374,034 km

• M1: 136,732 km (0.112 R)
• M2: 698,173 km (0.086 R)
• M3: 1,440,777 km (0.068 R)
• M4: 1,834,519 km (0.117 R)
• M5: 3,393,029 km (0.075 R)
• M6: 3,955,816 km (0.113 R)
• M7: 4,425,404 km (0.115 R)
• M8: 5,655,398 km (0.075 R)
• M9: 6,175,849 km (0.081 R)
• M10: 7,227,073 km (0.117 R)
• M11: 7,840,424 km (0.093 R)
• M12: 8,393,488 km (0.108 R)
• M13: 9,221,213 km (0.112 R)
• M14: 10,536,328 km (0.109 R)
• M15: 10,925,880 km (0.092 R)
• M16: 14,534,929 km (0.097 R)
• M17: 17,365,770 km (0.11 R)
• M18: 19,947,829 km (0.093 R)
• M19: 23,711,412 km (0.117 R)
• M20: 31,564,253 km (0.031 R)
• M21: 33,081,475 km (0.107 R)
• M22: 41,540,935 km (0.105 R)
• M23: 50,545,829 km (0.085 R)
• M24: 52,297,022 km (0.101 R)
• M25: 54,583,925 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744

Radius: 4

Gravity: 46.5 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 14.26 AU - 17.22 AU

Year: 22809 Days

Day: 22.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 85,374,034 km

• M1: 73,153 km (0.05 R)
• M2: 337,642 km (0.054 R)
• M3: 644,318 km (0.115 R)
• M4: 1,289,234 km (0.095 R)
• M5: 1,601,894 km (0.068 R)
• M6: 1,863,241 km (0.11 R)
• M7: 2,066,844 km (0.117 R)
• M8: 7,318,029 km (0.043 R)
• M9: 7,670,481 km (0.119 R)
• M10: 8,193,475 km (0.064 R)
• M11: 12,185,943 km (0.099 R)
• M12: 17,662,871 km (0.085 R)
• M13: 19,896,816 km (0.112 R)
• M14: 23,373,919 km (0.08 R)
• M15: 28,446,783 km (0.1 R)
• M16: 29,947,549 km (0.086 R)
• M17: 32,834,788 km (0.118 R)
• M18: 35,047,340 km (0.101 R)
• M19: 35,330,828 km (0.063 R)
• M20: 43,408,964 km (0.104 R)
• M21: 46,580,439 km (0.112 R)
• M22: 47,439,878 km (0.104 R)
• M23: 47,786,646 km (0.096 R)
• M24: 58,394,332 km (0.025 R)
• M25: 66,058,381 km (0.12 R)
• M26: 70,692,773 km (0.117 R)
• M27: 71,372,097 km (0.056 R)
• M28: 72,055,610 km (0.078 R)
• M29: 76,012,024 km (0.109 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 19,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit