🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.49 AU - 0.53 AU

Year: 135 Days

Day: 29.4 Hours

Environment

Temp: 222 °C

Axial Tilt: 31.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 12,571,989 km

• M1: 16,605 km (0.032 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.21 AU - 1.39 AU

Year: 550 Days

Day: 13.6 Hours

Environment

Temp: -20 °C

Axial Tilt: 49.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.22 AU - 1.8 AU

Year: 688 Days

Day: 30.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 12,571,989 km

• M1: 37,699 km (0.103 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.45 AU - 3.43 AU

Year: 1869 Days

Day: 32.1 Hours

Environment

Temp: -96 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 12,571,989 km

• M1: 2,017,477 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.36 AU - 3.42 AU

Year: 2315 Days

Day: 27.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.5

Radius: 11.6

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.61 AU - 5.15 AU

Year: 3998 Days

Day: 9.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 12,571,989 km

• M1: 144,661 km (0.117 R)
• M2: 867,967 km (0.091 R)
• M3: 1,495,231 km (0.113 R)
• M4: 2,194,451 km (0.092 R)
• M5: 2,570,091 km (0.119 R)
• M6: 2,989,115 km (0.093 R)
• M7: 3,393,179 km (0.115 R)
• M8: 4,148,499 km (0.099 R)
• M9: 4,805,233 km (0.11 R)
• M10: 5,672,003 km (0.061 R)
• M11: 6,544,907 km (0.074 R)
• M12: 7,574,589 km (0.079 R)
• M13: 10,293,829 km (0.083 R)
• M14: 11,498,092 km (0.109 R)
• M15: 14,561,558 km (0.091 R)
• M16: 15,055,530 km (0.075 R)
• M17: 15,788,709 km (0.068 R)
• M18: 16,368,849 km (0.103 R)
• M19: 17,633,251 km (0.067 R)
• M20: 18,703,773 km (0.104 R)
• M21: 20,085,309 km (0.04 R)
• M22: 20,766,578 km (0.116 R)
• M23: 22,247,447 km (0.119 R)
• M24: 23,571,837 km (0.089 R)
• M25: 24,483,487 km (0.072 R)
• M26: 25,339,785 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501

Radius: 10.3

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.59 AU - 8.39 AU

Year: 6854 Days

Day: 7.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 12,571,989 km

• M1: 128,056 km (0.099 R)
• M2: 602,131 km (0.099 R)
• M3: 1,714,541 km (0.079 R)
• M4: 2,449,964 km (0.101 R)
• M5: 3,299,082 km (0.117 R)
• M6: 3,780,488 km (0.099 R)
• M7: 5,106,972 km (0.103 R)
• M8: 5,783,753 km (0.066 R)
• M9: 6,192,005 km (0.116 R)
• M10: 6,552,387 km (0.103 R)
• M11: 8,059,884 km (0.096 R)
• M12: 8,410,991 km (0.106 R)
• M13: 10,186,418 km (0.112 R)
• M14: 10,924,385 km (0.103 R)
• M15: 11,452,166 km (0.104 R)
• M16: 12,767,281 km (0.075 R)
• M17: 13,900,784 km (0.094 R)
• M18: 14,463,721 km (0.108 R)
• M19: 16,995,216 km (0.086 R)
• M20: 17,704,160 km (0.049 R)
• M21: 20,020,683 km (0.12 R)
• M22: 21,473,877 km (0.102 R)
• M23: 21,847,871 km (0.108 R)
• M24: 23,074,125 km (0.06 R)
• M25: 24,103,807 km (0.101 R)
• M26: 28,982,643 km (0.116 R)
• M27: 30,368,069 km (0.11 R)
• M28: 31,315,921 km (0.116 R)
• M29: 31,894,116 km (0.051 R)
• M30: 32,774,650 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.6

Radius: 8.5

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.82 AU - 10.6 AU

Year: 9533 Days

Day: 14.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 12,571,989 km

• M1: 105,915 km (0.086 R)
• M2: 845,228 km (0.074 R)
• M3: 1,475,783 km (0.076 R)
• M4: 2,402,243 km (0.119 R)
• M5: 2,907,584 km (0.11 R)
• M6: 3,855,137 km (0.116 R)
• M7: 6,779,925 km (0.111 R)
• M8: 8,953,433 km (0.033 R)
• M9: 9,530,880 km (0.091 R)
• M10: 9,844,737 km (0.092 R)
• M11: 10,493,094 km (0.033 R)
• M12: 11,273,546 km (0.115 R)
• M13: 11,874,780 km (0.074 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 20,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit