🌌 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: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.55 AU - 0.79 AU

Year: 211 Days

Day: 47.6 Hours

Environment

Temp: 184 °C

Axial Tilt: 152.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.37 AU - 1.41 AU

Year: 631 Days

Day: 15.8 Hours

Environment

Temp: -43 °C

Axial Tilt: 22.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.23 AU - 1.67 AU

Year: 672 Days

Day: 23.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 53.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.87 AU - 2.51 AU

Year: 1248 Days

Day: 39.2 Hours

Environment

Temp: -83 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,581,476 km

• M1: 39,195 km (0.093 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3 AU - 4.56 AU

Year: 2829 Days

Day: 36.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.98 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.6

Radius: 8.4

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 6.06 AU - 6.28 AU

Year: 5901 Days

Day: 12.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,581,476 km

• M1: 104,419 km (0.093 R)
• M2: 375,640 km (0.075 R)
• M3: 828,024 km (0.092 R)
• M4: 1,147,266 km (0.096 R)
• M5: 1,595,012 km (0.078 R)
• M6: 2,000,722 km (0.087 R)
• M7: 2,303,508 km (0.082 R)
• M8: 2,570,839 km (0.105 R)
• M9: 3,644,653 km (0.044 R)
• M10: 4,446,797 km (0.074 R)
• M11: 6,215,941 km (0.094 R)
• M12: 6,489,107 km (0.115 R)
• M13: 7,628,594 km (0.097 R)
• M14: 8,084,119 km (0.099 R)
• M15: 9,165,862 km (0.104 R)
• M16: 11,659,508 km (0.048 R)
• M17: 12,216,910 km (0.106 R)
• M18: 14,048,287 km (0.103 R)
• M19: 15,998,894 km (0.08 R)
• M20: 17,575,506 km (0.092 R)
• M21: 26,318,903 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723

Radius: 15

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 7.2 AU - 8.28 AU

Year: 8290 Days

Day: 9 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,581,476 km

• M1: 186,848 km (0.119 R)
• M2: 701,464 km (0.111 R)
• M3: 1,221,616 km (0.074 R)
• M4: 2,088,985 km (0.107 R)
• M5: 2,633,671 km (0.109 R)
• M6: 3,409,186 km (0.068 R)
• M7: 4,120,374 km (0.113 R)
• M8: 5,841,647 km (0.025 R)
• M9: 6,790,098 km (0.039 R)
• M10: 7,921,058 km (0.064 R)
• M11: 8,510,324 km (0.068 R)
• M12: 10,960,438 km (0.066 R)
• M13: 11,586,804 km (0.107 R)
• M14: 14,030,335 km (0.119 R)
• M15: 14,895,460 km (0.118 R)
• M16: 20,693,724 km (0.106 R)
• M17: 24,353,636 km (0.07 R)
• M18: 25,968,246 km (0.119 R)
• M19: 27,272,589 km (0.102 R)
• M20: 29,310,561 km (0.066 R)
• M21: 32,077,673 km (0.038 R)
• M22: 33,253,363 km (0.055 R)
• M23: 35,690,910 km (0.062 R)
• M24: 40,178,099 km (0.111 R)
• M25: 42,302,239 km (0.056 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374

Radius: 13.5

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 6.67 AU - 9.49 AU

Year: 8843 Days

Day: 10.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,581,476 km

• M1: 171,888 km (0.105 R)
• M2: 999,463 km (0.11 R)
• M3: 3,044,167 km (0.076 R)
• M4: 4,215,818 km (0.111 R)
• M5: 7,966,535 km (0.089 R)
• M6: 9,193,537 km (0.106 R)
• M7: 14,843,849 km (0.094 R)
• M8: 16,568,712 km (0.098 R)
• M9: 17,085,274 km (0.09 R)
• M10: 18,630,320 km (0.087 R)
• M11: 22,621,741 km (0.111 R)
• M12: 28,142,052 km (0.068 R)
• M13: 30,292,970 km (0.101 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.1

Radius: 9.1

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7.8 AU - 11.52 AU

Year: 11559 Days

Day: 11.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,581,476 km

• M1: 114,442 km (0.056 R)
• M2: 624,272 km (0.102 R)
• M3: 984,055 km (0.104 R)
• M4: 1,468,752 km (0.085 R)
• M5: 3,633,732 km (0.053 R)
• M6: 4,581,884 km (0.104 R)
• M7: 5,616,802 km (0.091 R)
• M8: 6,079,209 km (0.118 R)
• M9: 6,566,748 km (0.088 R)
• M10: 10,317,616 km (0.065 R)
• M11: 13,720,518 km (0.093 R)
• M12: 14,891,870 km (0.036 R)
• M13: 17,957,878 km (0.079 R)
• M14: 18,494,037 km (0.111 R)
• M15: 19,840,268 km (0.08 R)
• M16: 23,626,740 km (0.053 R)
• M17: 24,643,556 km (0.081 R)
• M18: 26,174,242 km (0.077 R)
• M19: 28,381,110 km (0.064 R)
• M20: 36,224,975 km (0.095 R)
• M21: 38,960,372 km (0.077 R)
• M22: 39,988,109 km (0.101 R)
• M23: 41,830,257 km (0.104 R)
• M24: 43,865,985 km (0.09 R)
• M25: 47,987,556 km (0.088 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.5

Radius: 4.4

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 13.48 AU - 20.6 AU

Year: 27082 Days

Day: 16.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,581,476 km

• M1: 65,524 km (0.078 R)
• M2: 236,813 km (0.104 R)
• M3: 509,082 km (0.114 R)
• M4: 853,755 km (0.063 R)
• M5: 991,385 km (0.113 R)
• M6: 2,063,852 km (0.102 R)
• M7: 2,478,986 km (0.067 R)
• M8: 3,215,756 km (0.094 R)
• M9: 3,394,675 km (0.077 R)
• M10: 3,716,759 km (0.079 R)
• M11: 4,390,847 km (0.098 R)
• M12: 4,806,131 km (0.09 R)
• M13: 5,282,002 km (0.041 R)
• M14: 6,487,012 km (0.108 R)
• M15: 6,814,632 km (0.074 R)
• M16: 6,982,630 km (0.056 R)
• M17: 7,414,519 km (0.044 R)
• M18: 8,189,436 km (0.115 R)
• M19: 9,270,580 km (0.082 R)
• M20: 9,845,335 km (0.095 R)
• M21: 10,333,024 km (0.095 R)
• M22: 12,887,109 km (0.09 R)
• M23: 18,538,767 km (0.101 R)
• M24: 24,352,738 km (0.033 R)
• M25: 26,052,020 km (0.079 R)
• M26: 27,192,704 km (0.053 R)
• M27: 29,351,252 km (0.105 R)
• M28: 29,796,305 km (0.113 R)
• M29: 31,158,245 km (0.078 R)
• M30: 33,158,069 km (0.105 R)
• M31: 34,005,690 km (0.098 R)
• M32: 37,410,987 km (0.109 R)
• M33: 40,348,341 km (0.057 R)
• M34: 47,435,540 km (0.098 R)
• M35: 48,356,465 km (0.116 R)
• M36: 53,470,468 km (0.109 R)
• M37: 54,467,837 km (0.046 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 18,590 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit