🌌 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: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.46 AU - 0.62 AU

Year: 144 Days

Day: 45.3 Hours

Environment

Temp: 232 °C

Axial Tilt: 5.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.55 AU - 0.61 AU

Year: 160 Days

Day: 41.2 Hours

Environment

Temp: 247 °C

Axial Tilt: 33.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.62 AU - 0.92 AU

Year: 244 Days

Day: 31.1 Hours

Environment

Temp: 179 °C

Axial Tilt: 35 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.89 AU - 1.37 AU

Year: 434 Days

Day: 21.9 Hours

Environment

Temp: 14 °C

Axial Tilt: 39.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 3.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.2

Radius: 14.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.67 AU - 6.27 AU

Year: 4627 Days

Day: 13.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,021,507 km

• M1: 184,005 km (0.066 R)
• M2: 687,552 km (0.083 R)
• M3: 1,151,006 km (0.11 R)
• M4: 1,668,764 km (0.079 R)
• M5: 2,222,127 km (0.105 R)
• M6: 3,539,785 km (0.03 R)
• M7: 4,274,909 km (0.105 R)
• M8: 4,827,972 km (0.101 R)
• M9: 5,504,304 km (0.074 R)
• M10: 9,768,292 km (0.111 R)
• M11: 10,418,145 km (0.053 R)
• M12: 11,804,469 km (0.055 R)
• M13: 12,854,945 km (0.117 R)
• M14: 13,495,972 km (0.116 R)
• M15: 16,488,528 km (0.075 R)
• M16: 17,411,247 km (0.109 R)
• M17: 18,026,394 km (0.092 R)
• M18: 20,571,802 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.5

Radius: 10.6

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.68 AU - 10.52 AU

Year: 10757 Days

Day: 8.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,021,507 km

• M1: 131,945 km (0.09 R)
• M2: 572,361 km (0.115 R)
• M3: 933,940 km (0.109 R)
• M4: 1,479,972 km (0.041 R)
• M5: 1,971,999 km (0.063 R)
• M6: 2,473,152 km (0.055 R)
• M7: 2,817,676 km (0.116 R)
• M8: 3,732,467 km (0.092 R)
• M9: 5,181,472 km (0.116 R)
• M10: 7,054,138 km (0.108 R)
• M11: 9,931,354 km (0.119 R)
• M12: 11,967,830 km (0.065 R)
• M13: 15,118,959 km (0.113 R)
• M14: 15,590,791 km (0.089 R)
• M15: 15,933,819 km (0.12 R)
• M16: 16,563,925 km (0.092 R)
• M17: 17,210,637 km (0.112 R)
• M18: 17,725,104 km (0.086 R)
• M19: 30,192,291 km (0.104 R)
• M20: 33,831,110 km (0.083 R)
• M21: 39,124,032 km (0.092 R)
• M22: 39,503,861 km (0.106 R)
• M23: 40,270,700 km (0.119 R)
• M24: 40,787,560 km (0.074 R)
• M25: 45,082,665 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.1

Radius: 7

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 12.12 AU - 14.88 AU

Year: 17939 Days

Day: 17.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,021,507 km

• M1: 87,216 km (0.105 R)
• M2: 442,660 km (0.116 R)
• M3: 2,154,509 km (0.089 R)
• M4: 2,431,414 km (0.101 R)
• M5: 2,891,278 km (0.08 R)
• M6: 3,229,220 km (0.107 R)
• M7: 4,164,057 km (0.11 R)
• M8: 4,595,647 km (0.115 R)
• M9: 6,990,409 km (0.072 R)
• M10: 7,679,008 km (0.069 R)
• M11: 16,626,756 km (0.066 R)
• M12: 17,230,982 km (0.114 R)
• M13: 21,167,800 km (0.084 R)
• M14: 29,672,588 km (0.07 R)
• M15: 31,365,737 km (0.09 R)
• M16: 32,912,130 km (0.109 R)
• M17: 35,161,633 km (0.116 R)
• M18: 38,086,271 km (0.108 R)
• M19: 39,135,252 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 650.9

Radius: 3.2

Gravity: 63.56 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 11.81 AU - 15.59 AU

Year: 18339 Days

Day: 22.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 70,021,507 km

• M1: 40,990 km (0.111 R)
• M2: 152,739 km (0.081 R)
• M3: 297,550 km (0.069 R)
• M4: 398,828 km (0.094 R)
• M5: 780,901 km (0.108 R)
• M6: 1,027,438 km (0.119 R)
• M7: 1,142,329 km (0.071 R)
• M8: 1,459,776 km (0.086 R)
• M9: 1,656,198 km (0.083 R)
• M10: 2,002,667 km (0.084 R)
• M11: 2,529,850 km (0.108 R)
• M12: 3,331,993 km (0.117 R)
• M13: 4,692,736 km (0.118 R)
• M14: 5,928,564 km (0.105 R)
• M15: 6,050,635 km (0.106 R)
• M16: 6,908,130 km (0.084 R)
• M17: 8,089,954 km (0.113 R)
• M18: 10,426,523 km (0.057 R)
• M19: 10,545,004 km (0.065 R)
• M20: 12,766,682 km (0.089 R)
• M21: 15,205,277 km (0.118 R)
• M22: 15,821,172 km (0.11 R)
• M23: 22,227,102 km (0.034 R)
• M24: 25,188,541 km (0.109 R)
• M25: 25,724,401 km (0.118 R)
• M26: 36,168,128 km (0.111 R)
• M27: 37,958,066 km (0.111 R)
• M28: 39,088,428 km (0.101 R)
• M29: 44,298,473 km (0.034 R)
• M30: 46,666,158 km (0.101 R)
• M31: 49,784,526 km (0.082 R)
• M32: 52,342,350 km (0.074 R)
• M33: 57,718,000 km (0.059 R)
• M34: 62,860,427 km (0.109 R)
• M35: 64,440,779 km (0.103 R)
• M36: 68,714,640 km (0.111 R)
• M37: 68,922,881 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.3

Radius: 5.1

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 15.31 AU - 20.59 AU

Year: 27503 Days

Day: 15.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,021,507 km

• M1: 64,327 km (0.107 R)
• M2: 247,285 km (0.104 R)
• M3: 535,710 km (0.088 R)
• M4: 1,079,648 km (0.078 R)
• M5: 1,752,090 km (0.037 R)
• M6: 3,723,192 km (0.076 R)
• M7: 4,710,687 km (0.041 R)
• M8: 5,471,841 km (0.098 R)
• M9: 7,513,703 km (0.119 R)
• M10: 8,193,625 km (0.092 R)
• M11: 8,395,133 km (0.109 R)
• M12: 9,786,992 km (0.112 R)
• M13: 16,099,274 km (0.03 R)
• M14: 20,451,675 km (0.057 R)
• M15: 25,314,353 km (0.066 R)
• M16: 26,393,403 km (0.066 R)
• M17: 27,166,674 km (0.094 R)
• M18: 31,260,719 km (0.032 R)
• M19: 33,904,712 km (0.098 R)
• M20: 37,518,099 km (0.109 R)
• M21: 38,777,414 km (0.06 R)
• M22: 48,227,212 km (0.099 R)
• M23: 48,884,695 km (0.114 R)
• M24: 50,217,612 km (0.086 R)
• M25: 55,252,627 km (0.118 R)
• M26: 62,345,511 km (0.099 R)
• M27: 63,912,250 km (0.07 R)
• M28: 68,769,842 km (0.072 R)

Kuiper Belt

Range: 30.3 - 60.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 14,746 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit