🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.08 AU - 1.58 AU

Year: 569 Days

Day: 28.4 Hours

Environment

Temp: -22 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,765,941 km

• M1: 46,375 km (0.059 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.52 AU - 1.54 AU

Year: 702 Days

Day: 15.5 Hours

Environment

Temp: -35 °C

Axial Tilt: 0.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,765,941 km

• M1: 37,250 km (0.071 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.51 AU - 3.21 AU

Year: 1794 Days

Day: 21.8 Hours

Environment

Temp: -103 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.81 AU - 3.03 AU

Year: 1850 Days

Day: 28 Hours

Environment

Temp: -103 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,765,941 km

• M1: 106,214 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.42 AU - 4.88 AU

Year: 3135 Days

Day: 44 Hours

Environment

Temp: -120 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.63 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.7

Radius: 12.1

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.38 AU - 5.82 AU

Year: 4271 Days

Day: 12.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,765,941 km

• M1: 150,495 km (0.057 R)
• M2: 536,757 km (0.035 R)
• M3: 964,607 km (0.049 R)
• M4: 1,488,050 km (0.041 R)
• M5: 2,080,308 km (0.073 R)
• M6: 2,497,985 km (0.09 R)
• M7: 3,066,308 km (0.111 R)
• M8: 4,293,010 km (0.088 R)
• M9: 4,690,492 km (0.081 R)
• M10: 5,764,006 km (0.113 R)
• M11: 7,232,907 km (0.114 R)
• M12: 10,492,795 km (0.107 R)
• M13: 10,988,113 km (0.11 R)
• M14: 11,593,536 km (0.085 R)
• M15: 12,668,696 km (0.111 R)
• M16: 15,016,933 km (0.106 R)
• M17: 16,654,282 km (0.095 R)
• M18: 17,641,778 km (0.104 R)
• M19: 18,733,393 km (0.068 R)
• M20: 19,733,455 km (0.1 R)
• M21: 21,335,499 km (0.046 R)
• M22: 24,169,930 km (0.104 R)
• M23: 28,703,942 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.8

Radius: 12.5

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 6.8 AU - 7.44 AU

Year: 7046 Days

Day: 9.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,765,941 km

• M1: 156,180 km (0.054 R)
• M2: 665,262 km (0.108 R)
• M3: 1,574,218 km (0.103 R)
• M4: 1,972,298 km (0.118 R)
• M5: 2,484,671 km (0.101 R)
• M6: 2,961,290 km (0.116 R)
• M7: 3,440,302 km (0.025 R)
• M8: 4,968,744 km (0.095 R)
• M9: 8,315,398 km (0.089 R)
• M10: 8,786,781 km (0.115 R)
• M11: 9,199,521 km (0.117 R)
• M12: 11,818,830 km (0.065 R)
• M13: 13,080,838 km (0.076 R)
• M14: 17,641,479 km (0.115 R)
• M15: 18,851,276 km (0.067 R)
• M16: 19,666,734 km (0.088 R)
• M17: 24,394,177 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.5

Radius: 9.6

Gravity: 8.94 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 7.64 AU - 11.96 AU

Year: 11377 Days

Day: 6.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,765,941 km

• M1: 119,529 km (0.111 R)
• M2: 476,020 km (0.069 R)
• M3: 914,641 km (0.045 R)
• M4: 1,362,388 km (0.087 R)
• M5: 2,221,828 km (0.074 R)
• M6: 3,018,885 km (0.117 R)
• M7: 3,356,976 km (0.036 R)
• M8: 6,249,152 km (0.091 R)
• M9: 7,089,443 km (0.065 R)
• M10: 20,294,447 km (0.102 R)
• M11: 21,504,544 km (0.086 R)
• M12: 24,546,617 km (0.073 R)
• M13: 27,343,200 km (0.1 R)
• M14: 29,033,356 km (0.112 R)
• M15: 30,234,777 km (0.097 R)
• M16: 33,442,604 km (0.102 R)
• M17: 33,799,096 km (0.106 R)
• M18: 35,620,450 km (0.067 R)
• M19: 41,475,561 km (0.072 R)
• M20: 47,043,145 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.8

Radius: 7.7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 15.99 AU - 16.67 AU

Year: 24473 Days

Day: 16.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,765,941 km

• M1: 107,411 km (0.108 R)
• M2: 372,200 km (0.102 R)
• M3: 1,159,533 km (0.03 R)
• M4: 1,546,543 km (0.085 R)
• M5: 1,891,366 km (0.039 R)
• M6: 2,759,782 km (0.096 R)
• M7: 3,093,385 km (0.06 R)
• M8: 3,374,330 km (0.118 R)
• M9: 5,289,930 km (0.099 R)
• M10: 6,275,780 km (0.071 R)
• M11: 8,507,182 km (0.034 R)
• M12: 11,160,749 km (0.105 R)
• M13: 11,640,809 km (0.077 R)
• M14: 12,072,249 km (0.119 R)
• M15: 13,164,164 km (0.116 R)
• M16: 14,744,665 km (0.109 R)
• M17: 17,868,568 km (0.071 R)
• M18: 22,149,162 km (0.114 R)
• M19: 25,081,579 km (0.049 R)
• M20: 26,960,079 km (0.095 R)
• M21: 32,303,416 km (0.103 R)
• M22: 37,506,580 km (0.098 R)
• M23: 39,680,087 km (0.042 R)
• M24: 43,683,326 km (0.103 R)
• M25: 53,658,063 km (0.071 R)
• M26: 58,900,122 km (0.048 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 20,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit