🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.54 AU - 0.54 AU

Year: 256 Days

Day: 14.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.8

Radius: 13.6

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.67 AU - 0.83 AU

Year: 419 Days

Day: 6.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 102.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,983,648 km

• M1: 169,195 km (0.062 R)
• M2: 821,592 km (0.039 R)
• M3: 1,373,458 km (0.092 R)
• M4: 1,873,115 km (0.097 R)
• M5: 2,408,675 km (0.108 R)
• M6: 3,430,130 km (0.118 R)
• M7: 4,115,737 km (0.113 R)
• M8: 4,647,407 km (0.043 R)
• M9: 5,658,689 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.9

Radius: 14.1

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.29 AU - 1.61 AU

Year: 1127 Days

Day: 7.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,983,648 km

• M1: 175,329 km (0.092 R)
• M2: 631,752 km (0.052 R)
• M3: 1,142,479 km (0.116 R)
• M4: 1,846,636 km (0.099 R)
• M5: 2,337,467 km (0.074 R)
• M6: 3,226,826 km (0.096 R)
• M7: 4,936,281 km (0.068 R)
• M8: 6,166,723 km (0.114 R)
• M9: 7,048,752 km (0.116 R)
• M10: 7,690,527 km (0.088 R)
• M11: 8,293,407 km (0.087 R)
• M12: 9,063,985 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.6

Radius: 8.8

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.48 AU - 1.94 AU

Year: 1444 Days

Day: 14.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 84,983,648 km

• M1: 109,954 km (0.1 R)
• M2: 505,641 km (0.113 R)
• M3: 896,390 km (0.109 R)
• M4: 1,396,795 km (0.094 R)
• M5: 2,181,735 km (0.119 R)
• M6: 3,380,912 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.5

Radius: 10.8

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.67 AU - 1.91 AU

Year: 1546 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,983,648 km

• M1: 136,284 km (0.085 R)
• M2: 939,774 km (0.081 R)
• M3: 1,395,150 km (0.084 R)
• M4: 1,967,810 km (0.096 R)
• M5: 2,368,134 km (0.092 R)
• M6: 3,985,138 km (0.096 R)
• M7: 4,447,395 km (0.095 R)
• M8: 5,850,922 km (0.096 R)
• M9: 6,908,430 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.2

Radius: 12.9

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.86 AU - 5.46 AU

Year: 6495 Days

Day: 9 Hours

Environment

Temp: -218 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,983,648 km

• M1: 160,818 km (0.097 R)
• M2: 746,643 km (0.095 R)
• M3: 1,670,859 km (0.1 R)
• M4: 2,828,447 km (0.116 R)
• M5: 4,099,430 km (0.071 R)
• M6: 4,849,664 km (0.066 R)
• M7: 5,439,977 km (0.117 R)
• M8: 6,211,453 km (0.1 R)
• M9: 6,981,583 km (0.038 R)
• M10: 7,389,985 km (0.08 R)
• M11: 7,853,888 km (0.065 R)
• M12: 10,140,043 km (0.07 R)
• M13: 12,458,062 km (0.059 R)
• M14: 14,089,427 km (0.087 R)
• M15: 15,356,820 km (0.089 R)
• M16: 17,029,623 km (0.12 R)
• M17: 17,432,191 km (0.09 R)
• M18: 19,251,451 km (0.109 R)
• M19: 20,431,928 km (0.056 R)
• M20: 21,040,043 km (0.102 R)
• M21: 22,774,780 km (0.069 R)
• M22: 24,945,744 km (0.107 R)
• M23: 26,527,293 km (0.12 R)
• M24: 27,342,601 km (0.107 R)
• M25: 29,792,416 km (0.083 R)
• M26: 31,773,840 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.6

Radius: 11

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.59 AU - 5.27 AU

Year: 7068 Days

Day: 12.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,983,648 km

• M1: 138,378 km (0.104 R)
• M2: 862,731 km (0.079 R)
• M3: 2,444,429 km (0.046 R)
• M4: 2,849,690 km (0.078 R)
• M5: 3,990,374 km (0.093 R)
• M6: 5,057,904 km (0.086 R)
• M7: 8,673,834 km (0.076 R)
• M8: 13,959,875 km (0.064 R)
• M9: 14,366,482 km (0.05 R)
• M10: 15,021,272 km (0.117 R)
• M11: 17,571,467 km (0.04 R)
• M12: 21,608,216 km (0.104 R)
• M13: 23,026,852 km (0.061 R)
• M14: 24,172,473 km (0.12 R)
• M15: 26,049,028 km (0.112 R)
• M16: 36,796,738 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 949.5

Radius: 7.2

Gravity: 18.32 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.55 AU - 11.21 AU

Year: 20052 Days

Day: 15.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 84,983,648 km

• M1: 89,609 km (0.111 R)
• M2: 430,842 km (0.055 R)
• M3: 921,523 km (0.079 R)
• M4: 1,384,379 km (0.047 R)
• M5: 2,013,737 km (0.115 R)
• M6: 2,268,951 km (0.072 R)
• M7: 2,667,928 km (0.034 R)
• M8: 3,698,209 km (0.112 R)
• M9: 4,424,656 km (0.034 R)
• M10: 4,784,738 km (0.117 R)
• M11: 5,361,438 km (0.106 R)
• M12: 5,897,746 km (0.093 R)
• M13: 6,289,693 km (0.033 R)
• M14: 7,029,305 km (0.114 R)
• M15: 8,245,535 km (0.062 R)
• M16: 10,077,212 km (0.087 R)
• M17: 13,309,274 km (0.109 R)
• M18: 18,795,925 km (0.074 R)
• M19: 23,296,128 km (0.094 R)
• M20: 25,622,525 km (0.093 R)
• M21: 29,208,236 km (0.085 R)
• M22: 31,120,546 km (0.073 R)
• M23: 36,625,299 km (0.108 R)
• M24: 36,916,416 km (0.089 R)
• M25: 37,503,289 km (0.092 R)
• M26: 38,395,191 km (0.075 R)
• M27: 43,068,180 km (0.032 R)
• M28: 55,416,287 km (0.076 R)
• M29: 57,352,832 km (0.083 R)
• M30: 58,337,784 km (0.077 R)
• M31: 64,698,087 km (0.112 R)
• M32: 79,016,847 km (0.093 R)
• M33: 80,727,200 km (0.075 R)
• M34: 82,712,064 km (0.109 R)
• M35: 84,221,956 km (0.086 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 14,158 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit