🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.5 AU - 0.58 AU

Year: 146 Days

Day: 36.4 Hours

Environment

Temp: 166 °C

Axial Tilt: 61.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.55 AU - 0.65 AU

Year: 171 Days

Day: 12.3 Hours

Environment

Temp: 224 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 25,879,478 km

• M1: 104,569 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.63 AU - 0.83 AU

Year: 230 Days

Day: 35.8 Hours

Environment

Temp: 169 °C

Axial Tilt: 48.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 25,879,478 km

• M1: 278,102 km (0.089 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.08 AU - 1.5 AU

Year: 541 Days

Day: 33.9 Hours

Environment

Temp: 5 °C

Axial Tilt: 11.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.31 AU - 1.71 AU

Year: 685 Days

Day: 23.4 Hours

Environment

Temp: -42 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 25,879,478 km

• M1: 860,936 km (0.06 R)
• M2: 1,273,527 km (0.117 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.6 AU - 1.98 AU

Year: 884 Days

Day: 32.2 Hours

Environment

Temp: -67 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.78 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 15

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.67 AU - 5.87 AU

Year: 5114 Days

Day: 14.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 112.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,879,478 km

• M1: 186,549 km (0.049 R)
• M2: 816,056 km (0.077 R)
• M3: 1,377,796 km (0.116 R)
• M4: 1,993,242 km (0.078 R)
• M5: 3,485,182 km (0.105 R)
• M6: 3,955,667 km (0.077 R)
• M7: 5,631,313 km (0.112 R)
• M8: 6,369,129 km (0.055 R)
• M9: 7,548,110 km (0.092 R)
• M10: 8,550,715 km (0.106 R)
• M11: 10,902,842 km (0.047 R)
• M12: 11,659,957 km (0.07 R)
• M13: 12,273,009 km (0.083 R)
• M14: 13,948,505 km (0.106 R)
• M15: 14,539,716 km (0.103 R)
• M16: 15,825,061 km (0.082 R)
• M17: 20,199,153 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.6

Radius: 10.8

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.31 AU - 6.81 AU

Year: 5504 Days

Day: 12.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,879,478 km

• M1: 134,339 km (0.081 R)
• M2: 742,753 km (0.115 R)
• M3: 1,341,145 km (0.114 R)
• M4: 2,545,408 km (0.074 R)
• M5: 3,850,200 km (0.041 R)
• M6: 6,370,625 km (0.059 R)
• M7: 9,008,784 km (0.108 R)
• M8: 10,001,515 km (0.094 R)
• M9: 10,569,090 km (0.062 R)
• M10: 11,578,127 km (0.088 R)
• M11: 16,145,799 km (0.109 R)
• M12: 17,796,611 km (0.098 R)
• M13: 21,359,734 km (0.106 R)
• M14: 21,863,430 km (0.096 R)
• M15: 22,596,609 km (0.1 R)
• M16: 26,264,150 km (0.067 R)
• M17: 29,683,210 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 9.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5.51 AU - 6.73 AU

Year: 5586 Days

Day: 5.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 25,879,478 km

• M1: 119,379 km (0.112 R)
• M2: 462,257 km (0.107 R)
• M3: 1,186,461 km (0.114 R)
• M4: 2,083,001 km (0.109 R)
• M5: 2,610,483 km (0.098 R)
• M6: 3,004,075 km (0.089 R)
• M7: 4,619,133 km (0.101 R)
• M8: 5,093,658 km (0.117 R)
• M9: 6,438,692 km (0.105 R)
• M10: 7,424,842 km (0.099 R)
• M11: 8,545,030 km (0.099 R)
• M12: 10,900,150 km (0.12 R)
• M13: 11,607,000 km (0.116 R)
• M14: 12,391,042 km (0.066 R)
• M15: 13,160,723 km (0.049 R)
• M16: 15,442,091 km (0.106 R)
• M17: 16,333,395 km (0.057 R)
• M18: 18,218,328 km (0.12 R)
• M19: 18,773,635 km (0.059 R)
• M20: 19,086,893 km (0.073 R)
• M21: 20,507,325 km (0.102 R)
• M22: 21,858,493 km (0.094 R)
• M23: 23,775,590 km (0.108 R)
• M24: 24,737,504 km (0.081 R)
• M25: 25,495,068 km (0.053 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 266 - 16,864 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit